LT1460

LT1460 - Micropower Precision Series Reference Family

Document overview

• Manufacturer or author: Linear Technology Corporation
• PDF pages: 26

Technical content

OUTPUT VOL TAGE ERROR (%) –0.10 UNITS (%) –0.06 –0.02 0

1460 TA02

0.060.02 0.10

1400 PARTS

The L T®1460 is a micropower bandgap reference that combines very high accuracy and low drift with low power dissipation and small package size. This series reference uses curvature compensation to obtain low temperature coefficient and trimmed precision thin-film resistors to achieve high output accuracy. The reference will supply up to 20mA with excellent line regulation characteristics, making it ideal for precision regulator applications. This series reference provides supply current and power dissipation advantages over shunt references that must idle the entire load current to operate. Additionally, the L T1460 does not require an output compensation capacitor , yet is stable with capacitive loads. This feature is important where PC board space is a premium or fast settling is demanded. In the event of a reverse battery connection, these references will not conduct current, and are therefore protected from damage. The L T1460 is available in the 8-lead MSOP , SO, PDIP and the 3-lead TO-92 and SOT23 packages. L, L T , L TC, L TM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. n Handheld Instruments n Precision Regulators n A/D and D/A Converters n Power Supplies n Hard Disk Drives n T rimmed to High Accuracy: 0.075% Max n Low Drift: 10ppm/°C Max n Industrial Temperature Range n Temperature Coefficient Guaranteed to 125°C n Low Supply Current: 130µA Max (L T1460-2.5) n Minimum Output Current: 20mA n No Output Capacitor Required n Reverse Battery Protection n Minimum Input/Output Differential: 0.9V n Available in S0-8, MSOP-8, PDIP-8, TO-92 and Basic Connection Typical Distribution of Output Voltage LT1460-2.5 GND IN OUT

1460 TA01

0.1µF 2.5V3.4V TO 20V

Output Short-Circuit Duration, TA = 25°C (Note 1) Specified Temperature Range (Note 10) In Hi absolute MaxiMuM ratings

3 GND

TJMAX = 125°C, θJA = 228°C/W TOP VIEW DNC* VIN DNC* GND DNC* DNC* V OUT DNC* N8 PACKAGE 8-LEAD PLASTIC DIP *CONNECTED INTERNALLY. DO NOT CONNECT EXTERNAL CIRCUITRY TO THESE PINS TJMAX = 150°C, θJA = 130°C/W TOP VIEW DNC* DNC* V OUT DNC* DNC* VIN DNC* GND S8 PACKAGE 8-LEAD PLASTIC SO *CONNECTED INTERNALLY. DO NOT CONNECT EXTERNAL CIRCUITRY TO THESE PINS TJMAX = 150°C, θJA = 190°C/W DNC* V IN DNC* GND DNC* DNC* V OUT DNC* TOP VIEW MS8 PACKAGE 8-LEAD PLASTIC MSOP *CONNECTED INTERNALLY. DO NOT CONNECT EXTERNAL CIRCUITRY TO THESE PINS TJMAX = 150°C, θJA = 250°C/W 3 21 BOTTOM VIEW VIN VOUT GND Z PACKAGE 3-LEAD TO-92 PLASTIC TJMAX = 150°C, θJA = 160°C/W pin conFiguration

LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION SPECIFIED TEMPERATURE RANGE L T1460ACN8-2.5#PBF L T1460ACN8-2.5#TRPBF 8-Lead Plastic DIP 0°C to 70°C L T1460BIN8-2.5#PBF L T1460BIN8-2.5#TRPBF 8-Lead Plastic DIP –40°C to 85°C L T1460DCN8-2.5#PBF L T1460DCN8-2.5#TRPBF 8-Lead Plastic DIP 0°C to 70°C L T1460EIN8-2.5#PBF L T1460EIN8-2.5#TRPBF 8-Lead Plastic DIP –40°C to 85°C L T1460ACN8-5#PBF L T1460ACN8-5#TRPBF 8-Lead Plastic DIP 0°C to 70°C L T1460BIN8-5#PBF L T1460BIN8-5#TRPBF 8-Lead Plastic DIP –40°C to 85°C L T1460DCN8-5#PBF L T1460DCN8-5#TRPBF 8-Lead Plastic DIP 0°C to 70°C L T1460EIN8-5#PBF L T1460EIN8-5#TRPBF 8-Lead Plastic DIP –40°C to 85°C L T1460ACN8-10#PBF L T1460ACN8-10#TRPBF 8-Lead Plastic DIP 0°C to 70°C L T1460BIN8-10#PBF L T1460BIN8-10#TRPBF 8-Lead Plastic DIP –40°C to 85°C L T1460DCN8-10#PBF L T1460DCN8-10#TRPBF 8-Lead Plastic DIP 0°C to 70°C L T1460EIN8-10#PBF L T1460EIN8-10#TRPBF 8-Lead Plastic DIP –40°C to 85°C L T1460ACS8-2.5#PBF L T1460ACS8-2.5#TRPBF 1460A2 8-Lead Plastic SO 0°C to 70°C L T1460BIS8-2.5#PBF L T1460BIS8-2.5#TRPBF 460BI2 8-Lead Plastic SO –40°C to 85°C L T1460DCS8-2.5#PBF L T1460DCS8-2.5#TRPBF 1460D2 8-Lead Plastic SO 0°C to 70°C L T1460EIS8-2.5#PBF L T1460EIS8-2.5#TRPBF 460EI2 8-Lead Plastic SO –40°C to 85°C L T1460LHS8-2.5#PBF L T1460LHS8-2.5#TRPBF 60LH25 8-Lead Plastic SO 0°C to 70°C L T1460MHS8-2.5#PBF L T1460MHS8-2.5#TRPBF 60MH25 8-Lead Plastic SO –40°C to 85°C L T1460ACS8-5#PBF L T1460ACS8-5#TRPBF 1460A5 8-Lead Plastic SO 0°C to 70°C L T1460BIS8-5#PBF L T1460BIS8-5#TRPBF 460BI5 8-Lead Plastic SO –40°C to 85°C Lead Free Finish TAPE AND REEL (MINI) TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION SPECIFIED TEMPERATURE RANGE L T1460HCS3-2.5#TRMPBF L T1460HCS3-2.5#TRMPBF L TAC or L TH8 † 3-Lead Plastic SOT-23 0°C to 70°C L T1460JCS3-2.5#TRMPBF L T1460JCS3-2.5#TRPBF L TAD or L TH8 † 3-Lead Plastic SOT-23 0°C to 70°C L T1460KCS3-2.5#TRMPBF L T1460KCS3-2.5#TRPBF L TAE or L TH8 † 3-Lead Plastic SOT-23 0°C to 70°C L T1460HCS3-3#TRMPBF L T1460HCS3-3#TRPBF L TAN or L TH9 † 3-Lead Plastic SOT-23 0°C to 70°C L T1460JCS3-3#TRMPBF L T1460JCS3-3#TRPBF L TAP or L TH9 † 3-Lead Plastic SOT-23 0°C to 70°C L T1460KCS3-3#TRMPBF L T1460KCS3-3#TRPBF L TAQ or L TH9 † 3-Lead Plastic SOT-23 0°C to 70°C L T1460HCS3-3.3#TRMPBF L T1460HCS3-3.3#TRPBF L TAR or L TJ1 † 3-Lead Plastic SOT-23 0°C to 70°C L T1460JCS3-3.3#TRMPBF L T1460JCS3-3.3#TRPBF L TAS or L TJ1 † 3-Lead Plastic SOT-23 0°C to 70°C L T1460KCS3-3.3#TRMPBF L T1460KCS3-3.3#TRPBF L TAT or L TJ1 † 3-Lead Plastic SOT-23 0°C to 70°C L T1460HCS3-5#TRMPBF L T1460HCS3-5#TRPBF L TAK or L TJ2 † 3-Lead Plastic SOT-23 0°C to 70°C L T1460JCS3-5#TRMPBF L T1460JCS3-5#TRPBF L TAL or L TJ2 † 3-Lead Plastic SOT-23 0°C to 70°C L T1460KCS3-5#TRMPBF L T1460KCS3-5#TRPBF L TAM or L TJ2 † 3-Lead Plastic SOT-23 0°C to 70°C L T1460HCS3-10#TRMPBF L T1460HCS3-10#TRPBF L TAU or L TJ3 † 3-Lead Plastic SOT-23 0°C to 70°C L T1460JCS3-10#TRMPBF L T1460JCS3-10#TRPBF L TAV or L TJ3 † 3-Lead Plastic SOT-23 0°C to 70°C L T1460KCS3-10#TRMPBF L T1460KCS3-10#TRPBF L TAW or L TJ3 † 3-Lead Plastic SOT-23 0°C to 70°C TRM = 500 pieces. *Temperature grades and parametric grades are identified by a label on the shipping container . †Product grades are identified with either part marking. Consult L TC Marketing for parts specified with wider operating temperature ranges. Consult L TC Marketing for information on lead based finish parts. For more information on lead free part marking, go to: http://www.linear .com/leadfree/ For more information on tape and reel specifications, go to: http://www.linear .com/tapeandreel/

(%) TEMPERATURE COEFFICIENT (ppm/°C) PACKAGE TYPE N8 S8 MS8 Z S3 0°C to 70°C 0.075 10 L T1460ACN8 L T1460ACS8 –40°C to 85°C 0.10 10 L T1460BIN8 L T1460BIS8 0°C to 70°C 0.10 15 L T1460CCMS8 0°C to 70°C 0.10 20 L T1460DCN8 L T1460DCS8 –40°C to 85°C 0.125 20 L T1460EIN8 L T1460EIS8 0°C to 70°C 0.15 25 L T1460FCMS8 0°C to 70°C 0.25 25 L T1460GCZ –40°C to 85°C 0.25 25 L T1460GIZ –40°C to 85°C/125°C 0.20 20/50 L T1460LHS8 –40°C to 125°C 0.20 50 L T1460MHS8 0°C to 70°C 0.20 20 L T1460HCS3 0°C to 70°C 0.40 20 L T1460JCS3 0°C to 70°C 0.50 50 L T1460KCS3 available options LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION SPECIFIED TEMPERATURE RANGE L T1460DCS8-5#PBF L T1460DCS8-5#TRPBF 1460D5 8-Lead Plastic SO 0°C to 70°C L T1460EIS8-5#PBF L T1460EIS8-5#TRPBF 460EI5 8-Lead Plastic SO –40°C to 85°C L T1460LHS8-5#PBF L T1460LHS8-5#TRPBF 460LH5 8-Lead Plastic SO 0°C to 70°C L T1460MHS8-5#PBF L T1460MHS8-5#TRPBF 460MH5 8-Lead Plastic SO –40°C to 85°C L T1460ACS8-10#PBF L T1460ACS8-10#TRPBF 1460A1 8-Lead Plastic SO 0°C to 70°C L T1460BIS8-10#PBF L T1460BIS8-10#TRPBF 460BI1 8-Lead Plastic SO –40°C to 85°C L T1460DCS8-10#PBF L T1460DCS8-10#TRPBF 1460D1 8-Lead Plastic SO 0°C to 70°C L T1460EIS8-10#PBF L T1460EIS8-10#TRPBF 460EI1 8-Lead Plastic SO –40°C to 85°C L T1460CCMS8-2.5#PBF L T1460CCMS8-2.5#TRPBF L TAA 8-Lead Plastic MSOP 0°C to 70°C L T1460FCMS8-2.5#PBF L T1460FCMS8-2.5#TRPBF L TAB 8-Lead Plastic MSOP 0°C to 70°C L T1460CCMS8-5#PBF L T1460CCMS8-5#TRPBF L TAF 8-Lead Plastic MSOP 0°C to 70°C L T1460FCMS8-5#PBF L T1460FCMS8-5#TRPBF L TAG 8-Lead Plastic MSOP 0°C to 70°C L T1460CCMS8-10#PBF L T1460CCMS8-10#TRPBF L TAH 8-Lead Plastic MSOP 0°C to 70°C L T1460FCMS8-10#PBF L T1460FCMS8-10#TRPBF L TAJ 8-Lead Plastic MSOP 0°C to 70°C L T1460GCZ-2.5#PBF L T1460GCZ-2.5#TRPBF 3-Lead Plastic TO-92 0°C to 70°C L T1460GIZ-2.5#PBF L T1460GIZ-2.5#TRPBF 3-Lead Plastic TO-92 –40°C to 85°C L T1460GCZ-5#PBF L T1460GCZ-5#TRPBF 3-Lead Plastic TO-92 0°C to 70°C L T1460GIZ-5#PBF L T1460GIZ-5#TRPBF 3-Lead Plastic TO-92 –40°C to 85°C L T1460GCZ-10#PBF L T1460GCZ-10#TRPBF 3-Lead Plastic TO-92 0°C to 70°C L T1460GIZ-10#PBF L T1460GIZ-10#TRPBF 3-Lead Plastic TO-92 –40°C to 85°C Consult L TC Marketing for parts specified with wider operating temperature ranges. Consult L TC Marketing for information on non-standard lead based finish parts. For more information on lead free part marking, go to: http://www.linear .com/leadfree/ For more information on tape and reel specifications, go to: http://www.linear .com/tapeandreel/ orDer inForMation

PARAMETER CONDITIONS MIN TYP MAX UNITS Output Voltage L T1460ACN8-2.5, ACS8-2.5 2.49813 –0.075 2.50188 0.075 V L T1460BIN8-2.5, BIS8-2.5, CCMS8-2.5, DCN8-2.5, DCS8-2.5 2.4975 –0.10 2.5025 0.10 V L T1460EIN8-2.5, EIS8-2.5 2.49688 –0.125 2.50313 0.125 V L T1460FCMS8-2.5 2.49625 –0.15 2.50375 0.15 V L T1460GCZ-2.5, GIZ-2.5 2.49375 –0.25 2.50625 0.25 V L T1460LHS8-2.5, MHS8-2.5 2.495 –0.20 2.505 0.20 V L T1460ACN8-5, ACS8-5 4.99625 –0.075 5.00375 0.075 V L T1460BIN8-5, BIS8-5, CCMS8-5, DCN8-5, DCS8-5 4.995 –0.10 5.005 0.10 V L T1460EIN8-5, EIS8-5 4.99375 –0.125 5.00625 0.125 V L T1460FCMS8-5 4.9925 –0.15 5.0075 0.15 V L T1460GCZ-5, GIZ-5 4.9875 –0.25 5.0125 0.25 V L T1460LHS8-5, MHS8-5 4.990 –0.20 5.010 0.20 V L T1460ACN8-10, ACS8-10 9.9925 –0.075 10.0075 0.075 V L T1460BIN8-10, BIS8-10, CCMS8-10, DCN8-10, DCS8-10 9.990 –0.10 10.010 0.10 V L T1460EIN8-10, EIS8-10 9.9875 –0.125 10.0125 0.125 V L T1460FCMS8-10 9.985 –0.15 10.0015 0.15 V L T1460GCZ-10, GIZ-10 9.975 –0.25 10.025 0.25 V L T1460HC L T1460JC L T1460KC –0.2 –0.4 –0.5 0.2 0.4 0.5 Output Voltage Temperature Coefficient (Note 3) T MIN ≤ TJ ≤ TMAX L T1460ACN8, ACS8, BIN8, BIS8 LT1460CCMS8 LT1460DCN8, DCS8, EIN8, EIS8 LT1460FCMS8, GCZ, GIZ LT1460LHS8 –40°C to 85°C –40°C to 125°C LT1460MHS8 –40°C to 125°C l l l l l l l ppm/°C ppm/°C ppm/°C ppm/°C ppm/°C ppm/°C ppm/°C L T1460HC L T1460JC L T1460KC l l l ppm/°C ppm/°C ppm/°C The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = VOUT + 2.5V , IOUT = 0 unless otherwise specified.

electrical characteristics

The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = VOUT + 2.5V , IOUT = 0 unless otherwise specified. PARAMETER CONDITIONS MIN TYP MAX UNITS Line Regulation L T1460A, L T1460B, L T1460C, L T1460D, L T1460E, L T1460F , L T1460G, L T1460H, L T1460L, L T1460M VOUT + 0.9V ≤ VIN ≤ VOUT + 2.5V l 30 60 ppm/V ppm/V V OUT + 2.5V ≤ VIN ≤ 20V l 10 25 ppm/V ppm/V LT1460HC, L T1460JC, L T1460KC VOUT + 0.9V ≤ VIN ≤ VOUT + 2.5V l 150 800 1000 ppm/V ppm/V V OUT + 2.5V ≤ VIN ≤ 20V l 50 100 130 ppm/V ppm/V Load Regulation Sourcing (Note 4) L T1460A, L T1460B, L T1460C, L T1460D, L T1460E, L T1460F , L T1460G, L T1460H, L T1460L, L T1460M I OUT = 100µA l 1500 2800 3500 ppm/mA ppm/mA I OUT = 10mA l 80 135 180 ppm/mA ppm/mA I OUT = 20mA 0°C to 70°C l 70 100 140 ppm/mA ppm/mA LT1460HC, L T1460JC, L T1460KC IOUT = 100µA l 1000 3000 4000 ppm/mA ppm/mA I OUT = 10mA l 50 200 300 ppm/mA ppm/mA I OUT = 20mA l 20 70 100 ppm/mA ppm/mA Thermal Regulation (Note 5) L T1460A, L T1460B, L T1460C, L T1460D, L T1460E, L T1460F , L T1460G, L T1460H, L T1460L, L T1460M ΔP = 200mW 0.5 2.5 ppm/mW L T1460HC, L T1460JC, L T1460KC ΔP = 200mW 2.5 10 ppm/mW Dropout Voltage (Note 6) VIN – VOUT, IOUT = 0 l 0.9 V VIN – VOUT, IOUT = 10mA l 1.3 1.4 V V Output Current Short V OUT to GND 40 mA Reverse Leakage VIN = –15V l 0.5 10 µA Supply Current L T1460-2.5 l 100 130 165 µA µA L T1460-5 l 125 175 225 µA µA L T1460-10 l 190 270 360 µA µA L T1460S3-2.5 l 115 145 175 µA µA L T1460S3-3 l 145 180 220 µA µA L T1460S3-3.3 l 145 180 220 µA µA L T1460S3-5 l 160 200 240 µA µA L T1460S3-10 l 215 270 350 µA µA

PARAMETER CONDITIONS MIN TYP MAX UNITS Output Voltage Noise (Note 7) L T1460A, L T1460B, L T1460C, L T1460D, L T1460E, L T1460F , L T1460G, L T1460H, L T1460L, L T1460M LT1460-2.5 0.1Hz ≤ f ≤ 10Hz 10Hz ≤ f ≤ 1kHz µV P-P µVRMS L T1460-5 0.1Hz ≤ f ≤ 10Hz 10Hz ≤ f ≤ 1kHz µV P-P µVRMS L T1460-10 0.1Hz ≤ f ≤ 10Hz 10Hz ≤ f ≤ 1kHz µV P-P µVRMS L T1460HC, L T1460JC, L T1460KC 0.1Hz ≤ f ≤ 10Hz 10Hz ≤ f ≤ 1kHz ppm (P-P) ppm (RMS) Long-Term Stability of Output Voltage (Note 8) S8 Pkg 40 ppm/√kHr L T1460HC, L T1460JC, L T1460KC 100 ppm/√kHr Hysteresis (Note 9) L T1460A, L T1460B, L T1460C, L T1460D, L T1460E, L T1460F , L T1460G, L T1460H, L T1460L, L T1460M ΔT = 0°C to 70°C ΔT = –40°C to 85°C 160 ppm ppm L T1460HC, L T1460JC, L T1460KC ΔT = 0°C to 70°C ΔT = –40°C to 85°C l l 250 ppm ppm Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: If the part is stored outside of the specified temperature range, the output may shift due to hysteresis. Note 3: Temperature coefficient is measured by dividing the change in output voltage by the specified temperature range. Incremental slope is also measured at 25°C. Note 4: Load regulation is measured on a pulse basis from no load to the specified load current. Output changes due to die temperature change must be taken into account separately. Note 5: Thermal regulation is caused by die temperature gradients created by load current or input voltage changes. This effect must be added to normal line or load regulation. This parameter is not 100% tested. Note 6: Excludes load regulation errors. For L T1460S3, ΔV OUT ≤ 0.2%. For all other packages, ΔVOUT ≤ 0.1%. Note 7: Peak-to-peak noise is measured with a single highpass filter at 0.1Hz and 2-pole lowpass filter at 10Hz. The unit is enclosed in a still-air environment to eliminate thermocouple effects on the leads. The test time is 10 sec. RMS noise is measured with a single highpass filter at 10Hz and a 2-pole lowpass filter at 1kHz. The resulting output is full wave rectified The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = VOUT + 2.5V , IOUT = 0 unless otherwise specified. and then integrated for a fixed period, making the final reading an average as opposed to RMS. A correction factor of 1.1 is used to convert from average to RMS and a second correction of 0.88 is used to correct for the nonideal pass band of the filters. Note 8: Long-term stability typically has a logarithmic characteristic and therefore, changes after 1000 hours tend to be much smaller than before that time. Total drift in the second thousand hours is normally less than one third that of the first thousand hours with a continuing trend toward reduced drift with time. Significant improvement in long-term drift can be realized by preconditioning the IC with a 100 hour to 200 hour , 125°C burn-in. Long-term stability will also be affected by differential stresses between the IC and the board material created during board assembly. See PC Board Layout in the Applications Information section. Note 9: Hysteresis in output voltage is created by package stress that differs depending on whether the IC was previously at a higher or lower temperature. Output voltage is always measured at 25°C, but the IC is cycled to 85°C or –40°C before successive measurements. Hysteresis is roughly proportional to the square of the temperature change. For instruments that are stored at reasonably well-controlled temperatures (within 20 or 30 degrees of operating temperature) hysteresis is generally not a problem. Note 10: The L T1460S3 is guaranteed functional over the operating temperature range of –40° to 85°C.

IOUT = 10mA LOAD CAPACITANCE (µF) 0.1

1460 G09

INPUT VOLTAGE (V) 175 150 125 100

1460 G05

SUPPLY CURRENT (µA) 125°C 25°C –55°C TEMPERATURE (°C) –50 OUTPUT VOLTAGE (V) 2.503 2.502 2.501 2.500 2.499 2.498 –25 0 25 50

1460 G04

3 TYPICAL PARTS

OUTPUT CURRENT (mA) 0 0.5 OUTPUT VOLTAGE CHANGE (mV) 1.0 1.5

1460 G03

–55°C 125°C 25°C OUTPUT CURRENT (mA) 0.1 OUTPUT VOLTAGE CHANGE (mV) 1 10 100

1460 G02

125°C 25°C –55°C INPUT-OUTPUT VOLTAGE (V) OUTPUT CURRENT (mA) 100 0.1

1460 G01

125°C –55°C 25°C INPUT VOLTAGE (V) OUTPUT VOLTAGE (V) 4 8 10 20

1460 G06

2.5014 2.5010 2.5006 2.5002 2.4998 2.4994 2.4990 125°C 25°C –55°C FREQUENCY (Hz) POWER SUPPLY REJECTION RATIO (dB) –10 100 10k 100k 1M

1460 G07

FREQUENCY (Hz) OUTPUT IMPEDANCE (/uni03A9) 100 1k100 10k 100k 1M

1460 G08

CL = 0 CL= 0.1µF CL= 1µF 2.5V Minimum Input-Output Voltage Differential 2.5V Load Regulation, Sourcing 2.5V Load Regulation, Sinking 2.5V Output Voltage Temperature Drift 2.5V Supply Current vs Input Voltage 2.5V Line Regulation 2.5V Power Supply Rejection Ratio vs Frequency 2.5V Output Impedance vs Frequency 2.5V T ransient Responses L T1460-2.5 (N8, S8, MS8, Z Packages) typical perForMance characteristics

TEMPERATURE (°C) –50 OUTPUT VOLTAGE (V) 5.004 5.002 5.000 4.998 4.996 4.994 –25 0 25 50

1460 G16

INPUT VOLTAGE (V) 200 180 160 140 120 100

1460 G17

SUPPLY CURRENT (µA) 125°C –55°C 25°C INPUT VOLTAGE (V) OUTPUT VOLTAGE (V) 4 8 10 20

1460 G18

5.002 5.000 4.998 4.996 4.994 4.992 125°C 25°C –55°C INPUT-OUTPUT VOL TAGE (V) OUTPUT CURRENT (mA) 100 0.1

1460 G13

125°C –55°C 25°C OUTPUT CURRENT (mA) 0.1 OUTPUT VOLTAGE CHANGE (mV) 1 10 100

1460 G14

125°C 25°C –55°C FREQUENCY (Hz) 100 1000 10 1k 10k

1460 G10

NOISE VOLTAGE (nV/√Hz) TIME (SEC) 0 1 2 3 4 5 6 7 8 9 10 OUTPUT NOISE (10µV/DIV)

1460 G11

TIME (HOURS) OUTPUT VOLTAGE (V) 2.5000 2.4998 2.4996 2.4994 2.4992 2.4990 800

1460 G12

2.5V Output Voltage Noise Spectrum 2.5V Output Noise 0.1Hz to 10Hz 2.5V Long-Term Drift Three Typical Parts (S8 Package) 5V Minimum Input-Output Voltage Differential 5V Load Regulation, Sourcing 5V Load Regulation, Sinking 5V Output Voltage Temperature Drift 5V Supply Current vs Input Voltage 5V Line Regulation OUTPUT CURRENT (mA) 0 1 2 OUTPUT VOLTAGE CHANGE (mV) 3 4 5

1460 G15

25°C–55°C 125°C L T1460-5 (N8, S8, MS8, Z Packages) typical perForMance characteristics

OUTPUT CURRENT (mA) 0.1 OUTPUT VOLTAGE CHANGE (mV) 1 10 100

1460 G25

–55°C 25°C125°C INPUT/OUTPUT VOLTAGE (V)

0.1 OUTPUT CURRENT (mA)

1460 G24

–55°C125°C 25°C OUTPUT CURRENT (mA) OUTPUT VOLTAGE CHANGE (mV) 100

1460 G26

–55°C 125°C 25°C FREQUENCY (Hz) POWER SUPPLY REJECTION RATIO (dB) 100 10k 100k 1M

1460 G19

FREQUENCY (Hz) OUTPUT IMPEDANCE (/uni03A9) 100 0.1 1k100 10k 100k 1M

1460 G20

CL = 0 CL= 0.1µF CL= 1µF IOUT = 10mA 0.2ms/DIV LOAD CAPACITANCE (µF) 0.1

1460 G21

FREQUENCY (Hz) 100 1000 2000 3000 10 1k 10k

1460 G22

NOISE VOLTAGE (nV/√Hz) TIME (SEC) 0 1 2 3 4 5 6 7 8 9 10 OUTPUT NOISE (10µV/DIV)

1460 G23

5V Power Supply Rejection Ratio vs Frequency 5V Output Impedance vs Frequency 5V T ransient Responses 5V Output Voltage Noise Spectrum 5V Output Noise 0.1Hz to 10Hz 10V Minimum Input/Output Voltage Differential 10V Load Regulation, Sourcing 10V Load Regulation, Sinking L T1460-10 (N8, S8, MS8, Z Packages) L T1460-5 (N8, S8, MS8, Z Packages) typical perForMance characteristics

FREQUENCY (kHz) 0.01 0.1 1 100.1 100

1460 G33

NOISE VOLTAGE (µV/√Hz) TIME (SEC) OUTPUT NOISE (50µV/DIV)

1460 G34

INPUT FREQUENCY (kHz) POWER SUPPLY REJECTION RATIO (dB) 100 0.1 10 100 1000

1460 G30

FREQUENCY (kHz) OUTPUT IMPEDANCE (/uni03A9) 100 1000 0.01 1 10 100 0.1 0.1 1000

1460 G31

CL = 0µF CL = 1µF CL = 0.1µF IOUT = 10mA 200µs/DIV LOAD CAPACITANCE (µF) 0.1

1460 G32

TEMPERATURE (°C) –50

9.982 OUTPUT VOLTAGE (V)

9.986 9.990 9.994 9.998 10.006 –25 0 25 50

1460 G27

10.002 INPUT VOLTAGE (V) SUPPLY CURRENT (µA) 240 320 400

1460 G28

–55°C 125°C 25°C INPUT VOLTAGE (V)

9.980 OUTPUT VOLTAGE (V)

9.984 9.988 9.992 9.996 10.004 10 14 18

1460 G29

10.000 –55°C 125°C 25°C 10V Output Voltage Temperature Drift 10V Supply Current vs Input Voltage 10V Line Regulation 10V Power Supply Rejection Ratio vs Frequency 10V Output Impedance vs Frequency 10V T ransient Responses 10V Output Voltage Noise Spectrum 10V Output Noise 0.1Hz to 10Hz typical perForMance characteristics

TEMPERATURE (°C) –50 OUTPUT VOLTAGE (V) 2.501 2.502 2.503 25 75

1460 G38

2.500 2.499 –25 0 50 100 125 2.498 2.497 THREE TYPICAL PARTS INPUT VOLTAGE (V) SUPPLY CURRENT (µA) 100 150 125°C 25°C –55°C

1460 G39

INPUT VOLTAGE (V) OUTPUT VOLTAGE (V) 2.502 2.501 2.500 2.499 2.498 2.497 2.496 2.495 2.494

1460 G40

25°C 125°C –55°C INPUT-OUTPUT VOLTAGE (V) 0.1 OUTPUT CURRENT (mA) 125°C 25°C 100

1460 G35

–55°C OUTPUT CURRENT (mA) 0.1 –2.0OUTPUT VOLTAGE CHANGE (mV) –1.0 1 10 100

1460 G36

–3.0 –2.5 –1.5 –0.5 –3.5 –4.0 –55°C 25°C 125°C OUTPUT CURRENT (mA) OUTPUT VOLTAGE CHANGE (mV)20 100 120 1 2 3 4 –55°C

1460 G37

125°C 25°C FREQUENCY (kHz) POWER SUPPLY REJECTION RATIO (dB) 0.1 10 100 1000

1460 G41

FREQUENCY (kHz) OUTPUT IMPEDANCE (/uni03A9) 100 1000 0.01 1 10 100 0.1 0.1 1000

1460 G42

CL = 0µF CL = 0.1µF CL = 1µF CLOAD = 0µF 200µs/DIV LOAD CURRENT (mA) 0.1

1460 G43

Characteristic curves are similar for all voltage options of the L T1460S3. Curves from the L T1460S3-2.5 and the L T1460S3-10 represent the extremes of the voltage options. Characteristic curves for other output voltages fall between these curves, and can be estimated based on their voltage output. L T1460S3-2.5V Minimum Input- Output Voltage Differential L T1460S3-2.5V Load Regulation, Sourcing L T1460S3-2.5V Load Regulation, Sinking L T1460S3-2.5V Output Voltage Temperature Drift L T1460S3-2.5V Supply Current vs Input Voltage L T1460S3-2.5V Line Regulation L T1460S3-2.5V Power Supply Rejection Ratio vs Frequency L T1460S3-2.5V Output Impedance vs Frequency L T1460S3-2.5V T ransient Response typical perForMance characteristics

OUTPUT CURRENT (mA) 0.1 OUTPUT VOLTAGE CHANGE (mV) 1 10 100

1460 G47

–10 125°C 25°C –55°C OUTPUT CURRENT (mA) OUTPUT VOLTAGE CHANGE (mV) 150 200 250

1460 G48

125°C –55°C 25°C TEMPERATURE (°C) –50 OUTPUT VOLTAGE (V) 10.002 10.004 10.006 0 50 75

1460 G49

9.998 10.000 9.996 9.994 9.992 9.990 9.988 9.986 9.984 9.982 –25 25 100 125 THREE TYPICAL PARTS FREQUENCY (Hz) 100 1000 10 1k 10k

1460 G44

NOISE VOLTAGE (nV/√Hz) TIME (2 SEC/DIV) OUTPUT NOISE (20µV/DIV)

1460 G45

INPUT-OUTPUT VOLTAGE (V) 0.1 OUTPUT CURRENT (mA) 125°C 25°C 100

1460 G46

–55°C INPUT VOLTAGE (V) SUPPLY CURRENT (µA) 150 200 250 350 2 10 14

1460 G50

125°C –55°C 25°C INPUT VOLTAGE (V) OUTPUT VOLTAGE (V) 10.000 10.005 10.010 12 16

1460 G51

9.995 9.990 8 10 14 18 20 9.985 9.980 125°C –55°C 25°C Characteristic curves are similar for all voltage options of the L T1460S3. Curves from the L T1460S3-2.5 and the L T1460S3-10 represent the extremes of the voltage options. Characteristic curves for other output voltages fall between these curves, and can be estimated based on their voltage output. L T1460S3-2.5V Output Voltage Noise Spectrum L T1460S3-2.5V Output Noise 0.1Hz to 10Hz L T1460S3-10V Minimum Input- Output Voltage Differential L T1460S3-10V Load Regulation, Sourcing L T1460S3-10V Load Regulation, Sinking L T1460S3-10V Output Voltage Temperature Drift L T1460S3-10V Supply Current vs Input Voltage L T1460S3-10V Line Regulation typical perForMance characteristics

FREQUENCY (kHz) 0.01 0.1 1 100.1 100

1460 G55

NOISE VOLTAGE (µV/√Hz) TIME (2 SEC/DIV) OUTPUT NOISE (20µV/DIV)

1460 G56

FREQUENCY (kHz) POWER SUPPLY REJECTION RATIO (dB) 100 0.1 10 100 1000

1460 G52

FREQUENCY (kHz) OUTPUT IMPEDANCE (/uni03A9) 100 1000 0.01 1 10 100 0.1 0.1 1000

1460 G53

CL = 0µF CL = 0.1µF CL = 1µF CLOAD = 0µF 200µs/DIV LOAD CURRENT (mA) 0.1

1460 G54

Characteristic curves are similar for all voltage options of the L T1460S3. Curves from the L T1460S3-2.5 and the L T1460S3-10 represent the extremes of the voltage options. Characteristic curves for other output voltages fall between these curves, and can be estimated based on their voltage output. L T1460S3-10V Power Supply Rejection Ratio vs Frequency L T1460S3-10V Output Impedance vs Frequency L T1460S3-10V T ransient Response L T1460S3-10V Output Voltage Noise Spectrum L T1460S3-10V Output Noise 0.1Hz to 10Hz typical perForMance characteristics

in high dissipation and short battery life. tion can deliver 20mA of load current when demanded. The L T1460 is designed to be stable with capacitive loads. or where available capacitance is limited. for a 100µA pulse and to 0.1% in 1.5µs with a 1mA step. Figure 5. Effect of RS for CL = 1µFFigure 1. Response Time Test Circuit Figure 2. CL = 0 Figure 3. CL = 0.01µF Figure 4. Isolation Resistor Test Circuit

1460 F01

1460 F04

1460 F02

1460 F03

1460 F05

1460 F06

1460 F07

1460 F08

it will limit the load regulation. Figure 6 to Figure 8 illustrate response in the L T1460-5. response of the reference with no load capacitance. to ring due to the pole formed with the output impedance. Figure 6. Response Time Test Circuit Figure 8. CL = 0.01µF Figure 7. CL = 0 and 100µA load current step with a 0.01µF load capacitor . Figure 9 to Figure 11 illustrate response of the L T1460-10. the response of the reference with no load capacitance. to ring due to the pole formed with the output impedance. 100µA load current step with a 0.01µF load capacitor . Figure 11. CL = 0.01µF Figure 10. CL = 0 Figure 9. Response Time Test Circuit

1460 F09

1460 F10

1460 F11

Figure 13. CL = 0µF Figure 14. CL = 0.1µF Figure 15. IOUT = 1mA Figure 12. Response Time Test Circuit

1460 F12

1460 F13

1460 F14

1460 F15

Table 1. Maximum Output Capacitance for L T1460S3 long-term drift of the L T1460S3s.

• 20mA = 350mW . The thermal resistance of the SOT-23 package is 325°C/W and this dissipation causes a 114°C internal rise producing a junction temperature of T J = 25°C + 114°C = 139°C. This elevated temperature will cause the output to shift due to thermal hysteresis. For highest performance in precision applications, do not let the L T1460S3’s junction temperature exceed 85°C.

Figure 16. Typical Long-Term Drift Figure 17. 0°C to 70°C Hysteresis Figure 18. –40°C to 85°C Hysteresis

1460 F16

1460 F17

1460 F18

stability when large load currents are demanded. initial accuracy, temperature coefficient and load regulation. curacy as a fraction of their respective output voltages. can cause the output voltage to shift from its ideal value. amount of plastic used to hold the lead frame. or a region where the flexure of the board is minimum. of the PC board as shown in Figure 20a. Table 2. Worst-Case Output Accuracy Over Temperature

1460 F19

1460 F20a

1460 F20b

deform the board a fixed amount as shown in Figure 19. Figure 19. Flexure Numbers careful techniques are required.

1460 F21a

1460 F21b

1.20 – 1.40 (.047 – .060) 2.10 – 2.64 (.083 – .104)2.74 1.92

0.96 BSC

RECOMMENDED SOLDER PAD LAYOUT 0.764 0.8 ±0.127 0.37 – 0.51 (.015 – .020) 0.09 – 0.18 (.004 – .007) S3 SOT-23 0502 2.80 – 3.04 (.110 – .120) 0.89 – 1.03 (.035 – .041) 0.89 – 1.12 (.035 – .044) 0.01 – 0.10 (.0004 – .004) 0.45 – 0.60 (.017 – .024) 0.55 (.022) REF 1.78 – 2.05 (.070 – .081) MILLIMETERS (INCHES) NOTE: 1. CONTROLLING DIMENSION: MILLIMETERS 2. DIMENSIONS ARE IN 3. DRAWING NOT TO SCALE 4. DIMENSIONS ARE INCLUSIVE OF PLATING 5. DIMENSIONS ARE EXCLUSIVE OF MOLD FLASH AND METAL BURR 6. MOLD FLASH SHALL NOT EXCEED .254mm 7. PACKAGE JEDEC REFERENCE IS TO-236 VARIATION AB package Description 3-Lead Plastic SOT-23 (Reference L TC DWG # 05-08-1631)

.065 (1.651) TYP .045 – .065 (1.143 – 1.651) .130 ± .005 (3.302 ± 0.127) .020 (0.508) MIN.018 ± .003 (0.457 ± 0.076) .120 (3.048) MIN 1 2 3 4 8 7 6 5 .255 ± .015* (6.477 ± 0.381) .400* (10.160) MAX .008 – .015 (0.203 – 0.381) .300 – .325 (7.620 – 8.255) .325 +.035 –.015 +0.889 –0.3818.255( ) NOTE: 1. DIMENSIONS ARE INCHES MILLIMETERS *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .010 INCH (0.254mm) .100 (2.54) BSC .016 – .050 (0.406 – 1.270) .010 – .020 0°– 8° TYP .008 – .010 (0.203 – 0.254) SO8 0303 .053 – .069 (1.346 – 1.752) .014 – .019 (0.355 – 0.483) TYP .004 – .010 (0.101 – 0.254) .050 (1.270) BSC 1 2 3 4 .150 – .157 (3.810 – 3.988) NOTE 3 8 7 6 5 .189 – .197 (4.801 – 5.004) NOTE 3 .228 – .244 (5.791 – 6.197) .245 MIN .160 ±.005 RECOMMENDED SOLDER PAD LAYOUT .045 ±.005 .050 BSC .030 ±.005 TYP INCHES (MILLIMETERS) NOTE: 1. DIMENSIONS IN 2. DRAWING NOT TO SCALE 3. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm) package Description 8-Lead PDIP (Narrow .300 Inch) (Reference L TC DWG # 05-08-1510) 8-Lead Plastic Small Outline (Narrow .150 Inch) (Reference L TC DWG # 05-08-1610)

MSOP (MS8) 0307 REV F 0.53 ± 0.152 (.021 ± .006) SEATING PLANE NOTE: 1. DIMENSIONS IN MILLIMETER/(INCH) 2. DRAWING NOT TO SCALE 3. DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. MOLD FLASH, PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.152mm (.006") PER SIDE 4. DIMENSION DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS. INTERLEAD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.152mm (.006") PER SIDE 5. LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING) SHALL BE 0.102mm (.004") MAX 0.18 (.007) 0.254 (.010) 1.10 (.043) MAX 0.22 – 0.38 (.009 – .015) TYP 0.1016 ± 0.0508 (.004 ± .002) 0.86 (.034) REF 0.65 (.0256) BSC 0° – 6° TYP DETAIL “A” DETAIL “A” GAUGE PLANE 1 2 3 4 4.90 ± 0.152 (.193 ± .006) 8 7 6 5 3.00 ± 0.102 (.118 ± .004) (NOTE 3) 3.00 ± 0.102 (.118 ± .004) (NOTE 4) 0.52 (.0205) REF 5.23 (.206) MIN 3.20 – 3.45 (.126 – .136) 0.889 ± 0.127 (.035 ± .005) RECOMMENDED SOLDER PAD LAYOUT 0.42 ± 0.038 (.0165 ± .0015) TYP 0.65 (.0256) BSC package Description 8-Lead Plastic MSOP (Reference L TC DWG # 05-08-1660 Rev F)

.050 (1.27) BSC .060 p .005 (1.524p 0.127) DIA .90 (2.286) NOM .180 p .005 (4.572 p 0.127) .180 p .005 (4.572 p 0.127) .500 (12.70) MIN .050 (1.270) MAX UNCONTROLLED LEAD DIMENSION .016 p .003 (0.406 p 0.076) NOM BULK PACK .015 p .002 (0.381 p 0.051) .060 p .010 (1.524 p 0.254) 10o NOM .140 p .010 (3.556 p 0.127) Z3 (TO-92) 1008 REV C 3 2 1 .098 +.016/–.04 (2.5 +0.4/–0.1)

2 PLCS

REFER TO TAPE AND REEL SECTION OF LTC DATA BOOK FOR ADDITIONAL INFORMATION package Description Z Package 3-Lead Plastic TO-92 (Similar to TO-226) (Reference L TC DWG # 05-08-1410 Rev C)

Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However , no responsibility is assumed for its use. Linear Technology Corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.

revision history

REV DATE DESCRIPTION PAGE NUMBER C 3/10 Change θJA on S3 Package from 325°C/W to 228°C/W 2 (Revision history begins at Rev C)

Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com  LINEAR TECHNOLOGY CORPORATION 2006 LT 0310 REV C • PRINTED IN USA typical applications Handling Higher Load Currents Boosted Output Current with No Current Limit Boosted Output Current with Current Limit PART NUMBER DESCRIPTION COMMENTS L T1019 Precision Bandgap Reference 0.05% Max, 5ppm/°C Max L T1027 Precision 5V Reference 0.02%, 2ppm/°C Max L T1236 Precision Low Noise Reference 0.05% Max, 5ppm/°C Max, SO Package L T1461 Micropower Precision Low Dropout 0.04% Max, 3ppm/°C Max, 50mA Output Current L T1634 Micropower Precision Shunt Reference 1.25V , 2.5V Output 0.05%, 25ppm/°C Max L T1790 Micropower Precision Series References 0.05% Max, 10ppm/°C Max, 60µA Supply, SOT23 Package L TC 1798 Micropower Low Dropout Reference, Fixed or Adjustable 0.15% Max, 40ppm/°C, 6.5µA Max Supply Current L TC6652 Low Drift Low Noise Buffered Reference 0.05% Accuracy, 5ppm/°C Drift, 2.1ppm (0.1Hz to 10Hz) Noise L T6660 Tiny Micropower Precision Series References 0.075% Max, 10ppm/°C Max, 20mA Output, 2mm × 2mm DFN Package

1460 TA03

R1* VOUT TYPICAL LOAD CURRENT = 50mA SELECT R1 TO DELIVER 80% OF TYPICAL LOAD CURRENT. LT1460 WILL THEN SOURCE AS NECESSARY TO MAINTAIN PROPER OUTPUT. DO NOT REMOVE LOAD AS OUTPUT WILL BE DRIVEN UNREGULATED HIGH. LINE REGULATION IS DEGRADED IN THIS APPLICATION 10mA 47µF LT1460 OUT GND IN R1 = V+ – VOUT 40mA V+ ≥ (VOUT + 1.8V) LT1460 OUT GND IN

1460 TA04

47µF 2µF SOLID TANT 220/uni03A9

1460 TA05

2µF SOLID TANT D1* LED V+ ≥ VOUT + 2.8V 8.2/uni03A9R1 220/uni03A9 GLOWS IN CURRENT LIMIT, DO NOT OMIT 47µF LT1460 OUT GND IN relateD parts