LP8340IDT-1.8

LP8340 NSC | Alldatasheet

Document overview

• Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
• PDF pages: 14

Technical content

Features

n ±1.5% Typical VOUT tolerance n 420mV Typical Dropout @ 1.0A (VO = 5V) n Wide Operating Range 2.7V to 10V n Internal 1.0A PMOS Output Transistor n 19µA Typical Quiescent Current n Thermal Overload Limiting n Foldback Current Limiting n Zener Trimmed Bandgap Reference n Space saving LLP package n Temperature Range — LP8340C 0˚C to 125˚C — LP8340I −40˚C to 125˚C

Applications

n Battery Powered Electronics n Portable Instrumentation Typical Applications Fixed VOUT 20060901 Adjustable VOUT 20060902 October 2003 LP8340 Low Dropout, Low IQ, 1.0A CMOS Linear Regulator © 2003 National Semiconductor Corporation DS200609 www.national.com

Ordering Information

Package Part Number Package Marking Transport Media NSC Drawing 6-Pin LLP LP8340CLD-ADJ L041B 1k Units Tape and Reel LDE06A LP8340CLDX-ADJ 4.5k Units Tape and Reel LP8340CLD-1.8 L042B 1k Units Tape and Reel LP8340CLDX-1.8 4.5k Units Tape and Reel LP8340CLD-2.5 L043B 1k Units Tape and Reel LP8340CLDX-2.5 4.5k Units Tape and Reel LP8340CLD-3.3 L051B 1k Units Tape and Reel LP8340CLDX-3.3 4.5k Units Tape and Reel LP8340CLD-5.0 L044B 1k Units Tape and Reel LP8340CLDX-5.0 4.5k Units Tape and Reel LP8340ILD-ADJ L078B 1k Units Tape and Reel LP8340ILDX-ADJ 4.5k Units Tape and Reel LP8340ILD-1.8 L079B 1k Units Tape and Reel LP8340ILDX-1.8 4.5k Units Tape and Reel LP8340ILD-2.5 L080B 1k Units Tape and Reel LP8340ILDX-2.5 4.5k Units Tape and Reel LP8340ILD-3.3 L081B 1k Units Tape and Reel LP8340ILDX-3.3 4.5k Units Tape and Reel LP8340ILD-5.0 L082B 1k Units Tape and Reel LP8340ILDX-5.0 4.5k Units Tape and Reel 3-Pin DPAK LP8340CDT-1.8 LP8340CDT-1.8 75 Units/Rail TD03B LP8340CDTX-1.8 2.5k Units Tape and Reel LP8340CDT-2.5 LP8340CDT-2.5 75 Units/Rail LP8340CDTX-2.5 2.5k Units Tape and Reel LP8340CDT-3.3 LP8340CDT-3.3 75 Units/Rail LP8340CDTX-3.3 2.5k Units Tape and Reel LP8340CDT-5.0 LP8340CDT-5.0 75 Units/Rail LP8340CDTX-5.0 2.5k Units Tape and Reel LP8340IDT-1.8 LP8340IDT-1.8 75 Units/Rail LP8340IDTX-1.8 2.5k Units Tape and Reel LP8340IDT-2.5 LP8340IDT-2.5 75 Units/Rail LP8340IDTX-2.5 2.5k Units Tape and Reel LP8340IDT-3.3 LP8340IDT-3.3 75 Units/Rail LP8340IDTX-3.3 2.5k Units Tape and Reel LP8340IDT-5.0 LP8340IDT-5.0 75 Units/Rail LP8340IDTX-5.0 2.5k Units Tape and Reel LP8340 www.national.com 2

Note: VIN Pins (Pin1&6 ) must be connected together externally for full 1 amp operation (500mA max per pin). VOUT Sense (Pin 5) must be connected to V OUT (Pin 4). T0-252 20060905 Top View LP8340 www.national.com3

Absolute Maximum Ratings(Notes 1, If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. V IN,V OUT,V OUT Sense, ADJ −0.3V to 12V Storage Temperature Range −65˚C to 160˚C Junction Temperature (T J) 150˚C Power Dissipation (Note 3) ESD Rating Human Body Model (Note 6) 2kV Machine Model 200V Operating Ratings(Notes 1, 2) Supply Voltage 2.7 to 10V Temperature Range LP8340C 0˚C to 125˚C LP8340I −40˚C to 125˚C Unless otherwise specified all limits guaranteed for V IN =V O+ 1V, CIN =C OUT = 10µF, T J = 25˚C. Boldface limits apply over the full operating temperature range of T J = 0˚C to 125˚C Symbol Parameter Conditions Min (Note 5) Typ (Note 4) Max (Note 5) Units VIN Input Voltage LP8340-ADJ,1.8, 2.5 LP8340-3.3, 5.0 2.7 10 10 V VOUT Output Voltage LP8340-ADJ, ADJ = OUT IOUT = 10mA, V IN = 2.7V, T J = 25˚C 100µA ≤IOUT≤ 800mA, 3.0V ≤VIN≤VOUT +4V 800mA <IOUT ≤1.0A, 3.2V ≤VIN ≤VOUT +4V 1.231 1.213 1.213 1.250 1.269 1.288 1.288 V LP8340-1.8 I OUT = 10mA, V IN = 2.8V, T J = 25˚C 100µA ≤IOUT ≤800mA, 3.2V ≤VIN≤6V 800mA <IOUT ≤1.0A, 3.4V ≤VIN ≤6V 1.773 1.746 1.746 1.800 1.827 1.854 1.854 V LP8340-2.5 I OUT = 10mA, V IN = 3.8V, T J = 25˚C 100µA ≤IOUT ≤1.0A, 3.8V ≤VIN ≤6.5V 2.463 2.425 2.500 2.538 2.575 V LP8340-3.3 IOUT = 10mA, V IN = 4.3V T J = 25˚C 100µA ≤IOUT ≤1.0A, 4.3V ≤VIN ≤7.5V 3.250 3.201 3.300 3.350 3.399 V LP8340-5.0 IOUT = 10mA, V IN = 6V, T J = 25˚C 100µA ≤IOUT ≤1.0A, 6V ≤VIN ≤9V 4.925 4.850 5.000 5.075 5.150 V ∆VO Load Regulation LP8340-ADJ, ADJ=OUT IOUT = 1mA to 1.0A, V IN = 3.2V 6 25 mV LP8340-1.8 IOUT = 1mA to 1.0A, V IN = 3.4V 8 30 LP8340-2.5 IOUT = 1mA to 1.0A, V IN = 3.5V 15 50 LP8340-3.3 IOUT = 1mA to 1.0A, V IN = 4.3V 20 75 LP8340-5.0 IOUT = 1mA to 1.0A, V IN =6 V 2 5 100 ∆VO Line Regulation V OUT + 0.5V ≤VIN ≤10V, IOUT = 25mA (Note 7) 4 15 mV LP8340 www.national.com 4

Unless otherwise specified all limits guaranteed for V IN =V O+ 1V, CIN =C OUT = 10µF, T J = 25˚C. Boldface limits apply over the full operating temperature range of T J = 0˚C to 125˚C Symbol Parameter Conditions Min (Note 5) Typ (Note 4) Max (Note 5) Units VIN −V O Dropout Voltage (Note 7) (Note 8) LP8340-1.8 IOUT = 800mA 680 1400 mV LP8340-2.5 IOUT = 800mA 550 1000 LP8340-2.5 IOUT = 1.0A 670 1300 LP8340-3.3 LP8340-ADJ, VOUT = 3.3V, I OUT = 800mA 420 800 LP8340-3.3 LP8340-ADJ, IOUT = 1.0A 540 1000 LP8340-5.0 IOUT = 800mA 330 650 LP8340-5.0 IOUT = 1.0A 420 800 IQ Quiescent Current V IN ≤10V 19 50 µA Minimum Load Current V IN −V OUT ≤4V 100 µA ILIMIT Foldback Current Limit V IN −V OUT >5V 450 mAVIN −V OUT <4V 1600 Ripple Rejection Ratio V IN (dc) = V OUT +2 V VIN (ac) = 1 V P-P @ 120Hz 48 55 dB TSD Thermal Shutdown Temp. Thermal Shutdown Hyst. 160 ADJ Input Leakage Current V ADJ = 1.5V or 0V ±0.01 ±100 nA VOUT Leakage Current LP8340-ADJ ADJ = OUT, V OUT = 2V, V IN = 10V 10 µA LP8340-1.8, VOUT = 2.5V, V IN = 10V 10 LP8340-2.5, VOUT = 3.5V, V IN = 10V 10 LP8340-3.3, VOUT = 4V, VIN = 10V 10 LP8340-5.0, VOUT = 6V, VIN = 10V 10 en Output Noise 10Hz to 10kHz, R L =1 kΩ,C OUT = 10µF 250 µVrms Unless otherwise specified all limits guaranteed for V IN =V O+ 1V, CIN =C OUT = 10µF, T J = 25˚C. Boldface limits apply over the full operating temperature range of T J = −40˚C to 125˚C Symbol Parameter Conditions Min (Note 5) Typ (Note 4) Max (Note 5) Units VIN Input Voltage LP8340-ADJ,1.8, 2.5 LP8340-3.3, 5.0 2.7 10 10 V LP8340 www.national.com5

Unless otherwise specified all limits guaranteed for V IN =V O+ 1V, CIN =C OUT = 10µF, T J = 25˚C. Boldface limits apply over the full operating temperature range of T J = −40˚C to 125˚C Symbol Parameter Conditions Min (Note 5) Typ (Note 4) Max (Note 5) Units VOUT Output Voltage LP8340-ADJ, ADJ = OUT IOUT = 10mA, V IN = 2.7V, T J = 25˚C 100µA ≤IOUT≤ 800mA, 3.0V ≤VIN≤VOUT +4V 800mA <IOUT ≤1.0A, 3.2V ≤VIN ≤VOUT +4V 1.231 1.213 1.213 1.250 1.269 1.288 1.288 V LP8340-1.8 I OUT = 10mA, V IN = 2.8V, T J = 25˚C 100µA ≤IOUT ≤800mA, 3.2V ≤VIN≤6V 800mA <IOUT ≤1.0A, 3.4V ≤VIN ≤6V 1.773 1.746 1.746 1.800 1.827 1.854 1.854 V LP8340-2.5 I OUT = 10mA, V IN = 3.8V, T J = 25˚C 100µA ≤IOUT ≤1.0A, 3.8V ≤VIN ≤6.5V 2.463 2.425 2.500 2.538 2.575 V LP8340-3.3 IOUT = 10mA, V IN = 4.3V T J = 25˚C 100µA ≤IOUT ≤1.0A, 4.3V ≤VIN ≤7.5V 3.250 3.201 3.300 3.350 3.399 V LP8340-5.0 IOUT = 10mA, V IN = 6V, T J = 25˚C 100µA ≤IOUT ≤1.0A, 6V ≤VIN ≤9V 4.925 4.850 5.000 5.075 5.150 V ∆VO Load Regulation LP8340-ADJ, ADJ=OUT IOUT = 1mA to 1.0A, V IN = 3.2V 6 25 mV LP8340-1.8 IOUT = 1mA to 1.0A, V IN = 3.4V 8 30 LP8340-2.5 IOUT = 1mA to 1.0A, V IN = 3.5V 15 50 LP8340-3.3 IOUT = 1mA to 1.0A, V IN = 4.3V 20 75 LP8340-5.0 IOUT = 1mA to 1.0A, V IN =6 V 2 5 100 ∆VO Line Regulation V OUT + 0.5V ≤VIN ≤10V, IOUT = 25mA (Note 7) 4 15 mV VIN −V O Dropout Voltage (Note 7) (Note 8) LP8340-1.8 IOUT = 800mA 680 1400 mV LP8340-2.5 IOUT = 800mA 550 1000 LP8340-2.5 IOUT = 1.0A 670 1300 LP8340-3.3 LP8340-ADJ, VOUT = 3.3V, I OUT = 800mA 420 800 LP8340-3.3 LP8340-ADJ, IOUT = 1.0A 540 1000 LP8340-5.0 IOUT = 800mA 330 650 LP8340-5.0 IOUT = 1.0A 420 800 IQ Quiescent Current V IN ≤10V 19 50 µA Minimum Load Current V IN −V OUT ≤4V 100 µA ILIMIT Foldback Current Limit V IN −V OUT >5V 450 mAVIN −V OUT <4V 1600 Ripple Rejection Ratio V IN (dc) = V OUT +2 V VIN (ac) = 1 V P-P @ 120Hz 48 55 dB LP8340 www.national.com 6

Unless otherwise specified all limits guaranteed for V IN =V O+ 1V, CIN =C OUT = 10µF, T J = 25˚C. Boldface limits apply over the full operating temperature range of T J = −40˚C to 125˚C Symbol Parameter Conditions Min (Note 5) Typ (Note 4) Max (Note 5) Units TSD Thermal Shutdown Temp. Thermal Shutdown Hyst. 160 ADJ Input Leakage Current V ADJ = 1.5V or 0V ±0.01 ±100 nA VOUT Leakage Current LP8340-ADJ ADJ = OUT, V OUT = 2V, V IN = 10V 10 µA LP8340-1.8, VOUT = 2.5V, V IN = 10V 10 LP8340-2.5, VOUT = 3.5V, V IN = 10V 10 LP8340-3.3, VOUT = 4V, VIN = 10V 10 LP8340-5.0, VOUT = 6V, VIN = 10V 10 en Output Noise 10Hz to 10kHz, R L =1 kΩ,C OUT = 10µF 250 µVrms Note 1: Absolute Maximum ratings indicate limits beyond which damage may occur. Electrical specifications do not apply when operating the device outside of its rated operating conditions. Note 2: All voltages are with respect to the potential at the ground pin. Note 3: Maximum Power dissipation for the device is calculated using the following equations: where TJ(MAX) is the maximum junction temperature, TA is the ambient temperature, and θJA is the junction-to-ambient thermal resistance. The value of the θJA for the LLP package is specifically dependant on the PCB trace area, trace material, and the number of layers and thermal vias. For improved thermal resist ance and power dissipation for the LLP package, refer to Application Note AN-1187. Note 4: Typical Values represent the most likely parametric norm. Note 5: All limits are guaranteed by testing or statistical analysis. Note 6: Human body model 1.5k Ω in series with 100pF. Note 7: Condition does not apply to input voltages below 2.7V since this is the minimum input operating voltage. Note 8: Dropout voltage is measured by reducing V IN until VO drops 100mV from its normal value. LP8340 www.national.com7

Typical Performance Characteristics Unless otherwise specified, V IN =V O + 1.5V, CIN =C OUT = 10µF X7R ceramic, T J = 25˚C Output Voltage Change vs. Temperature Dropout Voltage vs. Load Current 20060907 20060908 Ground Current vs. Temperature (ILOAD = 1A) Ground Current vs. Load Current 20060909 20060910 Ground Current vs. Input Voltage Ripple Rejection Ratio vs. Frequency 20060911 20060912 LP8340 www.national.com 8

Typical Performance Characteristics (Continued) LP8340-1.8V Min VIN LP8340-ADJ Min VIN 20060919 20060920 Load Transient Response Line Transient Response (I LOAD = 10mA) 20060913 20060914 Start-up Response Minimum Input Voltage Rise Time 20060915 20060921 LP8340 www.national.com9

Typical Performance Characteristics (Continued) Minimum Input Voltage Rise Time Minimum Input Voltage Rise Time 20060922 20060923 Minimum Input Voltage Rise Time Minimum Input Voltage Rise Time 20060924 20060925 LP8340 www.national.com 10

tain the error amplifier’s inputs as virtually equal. transient response, power supply rejection and stability. R2 for a desired V OUT (R2 = 100Ω is recommended). FIGURE 1. LP8340 Functional Block Diagram

Applications Section (Continued) START UP CONSIDERATIONS Under certain operating conditions, overshoot of V OUT at start-up can occur. The observed overshoot is a function of rise time of V IN waveform, COUT, start-up load current, and VIN−VOUT differential. The relationship between these con- ditions is shown in the Typical Performance Characteristics curves (Minimum Input Voltage Rise Time). V IN rise times above the curve result in <5% overshoot. Customers are encouraged to check the suitability of LP8340 in their specific application. LP8340 www.national.com 12

Physical Dimensions inches (millimeters) unless otherwise noted 6-Pin LLP 3-Pin DPAK LP8340 www.national.com13

NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. 2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. BANNED SUBSTANCE COMPLIANCE National Semiconductor certifies that the products and packing materials meet the provisions of the Customer Products Stewardship Specification (CSP-9-111C2) and the Banned Substances and Materials of Interest Specification (CSP-9-111S2) and contain no ‘‘Banned Substances’’ as defined in CSP-9-111S2. National Semiconductor Americas Customer Support Center Email: new.feedback@nsc.com Tel: 1-800-272-9959 National Semiconductor Europe Customer Support Center Fax: +49 (0) 180-530 85 86 Email: europe.support@nsc.com Deutsch Tel: +49 (0) 69 9508 6208 English Tel: +44 (0) 870 24 0 2171 Français Tel: +33 (0) 1 41 91 8790 National Semiconductor Asia Pacific Customer Support Center Email: ap.support@nsc.com National Semiconductor Japan Customer Support Center Fax: 81-3-5639-7507 Email: jpn.feedback@nsc.com Tel: 81-3-5639-7560 www.national.com LP8340 Low Dropout, Low IQ, 1.0A CMOS Linear Regulator National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the righ t at any time without notice to change said circuitry and specifications.