ILC7080 FAIRCHILD | Alldatasheet

Document overview

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Technical content

Features

  • Ultra low 1mV dropout per 1mA load
  • 1% output voltage accuracy
  • Uses low ESR ceramic output capacitor to minimize noise and output ripple
  • Only 100µA ground current at 100mA load
  • Ripple rejection up to 85dB at 1kHz, 60dB at 1MHz
  • Less than 80µV RMS noise at BW = 100Hz to 100kHz
  • Excellent line and load transient response
  • O ver current / over temperature protection
  • Guaranteed up to 80/150mA output current
  • Industry standard five lead SOT-23 package 3.6V , 4.7V , 5.0V and adjustable output (ILC7081 only) voltage options
  • Metal mask option available for custom voltages between 2.5 to 5.1V

Applications

  • Cellular phones
  • W ireless communicators
  • P DAs / palmtops / organizers
  • Battery powered portable electronics

Description

The ILC7080/81 are 50 or 100mA low dropout (LDO) voltage regulators designed to provide a high performance solution to low power systems. The devices offer a typical combination of low dropout and low quiescent current expected of CMOS parts, while uniquely providing the low noise and high ripple rejection characteristics usually only associated with bipolar LDO regulators. The devices have been optimized to meet the needs of modern wireless communications design; Low noise, low dropout, small size, high peak current, high noise immunity. The ILC7080/81 are designed to make use of low cost ceramic capacitors while outperforming other devices that require tantalum capacitors. Typical Applications ILC7080 ILC7081 12 3 ON OFF SOT-23-5 VOUT VIN COUT CNOISE ILC7080/81 50/100mA SOT-23 CMOS RF LDO™ Regulators

REV. 1.0.7 4/3/03 Pin Assignments Pin Description ILC7080/81-xx (fixed voltage version) Pin Description ILC7081-ADJ (adjustable voltage version) Absolute Maximum Ratings (Note 1) Recommended Operating Conditions Pin Number Pin Name Pin Description IN Connect direct to supply 2 GND Ground pin. Local ground for C NOISE and C OUT 3 ON/OFF By applying less than 0.4V to this pin the device will be turned off. NOISE Optional noise bypass capacitor may be connected between this pin and GND (pin 2). Do not connect C NOISE directly to the main power ground plane. OUT Output Voltage. Connect C OUT between this pin and GND (pin 2). Pin Number Pin Name Pin Description IN Connect direct to supply 2 GND Ground pin. Local ground for C NOISE and C OUT 3 ON/OFF By applying less than 0.4V to this pin the device will be turned off. ADJ Voltage feedback pin to set the adjustable output voltage. Do not connect a capacitor to this pin. OUT Output Voltage. Connect C OUT between this pin and GND (pin 2). Parameter Symbol Ratings Units Input voltage On/Off Input voltage V IN V ON/OFF -0.3 to +13.5 -0.3 to V IN V Output Current I OUT Short circuit protected mA Output voltage V OUT -0.3 to V IN +0.3 V Package Power Dissipation (SOT-23-5) P D 250 (Internally Limited) mW Maximum Junction Temp Range T J(max) -40 to +150 °C Storage Temperature T STG -40 to +125 °C Operating Ambient Temperature T A -40 to +85 °C Package Thermal Resistance q JA 333 °C/W Parameter Min. Typ. Max. Units Input Voltage V OUT DO V OUT +1 13 V Operating Ambient Temperature -40 +85 °C ILC7080-xx ILC7081-xx SOT23-5 ON OFF CNOISE VIN VOUT GND 12 3 ILC7081-ADJ SOT23-5 ON OFF VADJ VIN VOUT GND 12 3 Fixed Voltage Option Adjustable Voltage Option

REV. 1.0.7 4/3/03

Electrical Characteristics

Unless otherwise specified, all limits are at T A =25°C; V IN = V OUT(NOM) +1V, I OUT = 1mA, C OUT = 1µF, V ON/OFF = 2V. Boldface type denotes specifications which apply over the specified operating temperature range. Parameter Symbol Conditions Min. Typ. Max. Units Input voltage Range V IN 21 3 V Output voltage V OUT I OUT = 1mA 1mA < I OUT < 100mA 1mA < I OUT < 100mA -1.5 -3.5 V OUT(NOM) 1.5 +3.5 Feedback Voltage (ADJ version) V ADJ 1.215 1.202 1.240 1.265 1.278 V Line Regulation V OUT OUT V IN V OUT(NOM) +1V < V IN < 12V 0.007 0.014 0.032 %/V Dropout voltage (Note 3) V IN - V OUT 7080/81 I OUT = 0mA (Note 4) 0.1 1 mV I OUT = 10mA 10 25 7080 only I OUT = 50mA 110 125 150 7081 only I OUT = 50mA 50 75 100 I OUT = 100mA 100 150 200 I OUT = 150mA 150 225 300 Ground Pin Current I GND 7080/81 I OUT = 0mA 95 200 220 µA I OUT = 10mA 100 220 240 I OUT = 50mA 100 220 240 7081 only I OUT = 100mA 100 240 260 I OUT = 150mA 115 260 280 Shutdown (OFF) Current I ON/OFF V ON/OFF = 0V 0.1 2 µA ON/OFF Input Voltage V ON/OFF High = Regulator On Low = Regulator Off 2.0 0.6 V ON/OFF Pin Input Current I IN( ON/OFF) V ON/OFF = 0.6V, regulator OFF V ON/OFF = 2V, regulator ON 0.3 µA Peak Output Current (Note 4) I OUT(peak) V OUT > 0.95V OUT(NOM) , tpw=2ms 400 500 mA Output Noise Voltage (RMS) e N BW=300Hz to 50kHz, C NOISE =0.01µF 80 µV RMS Ripple Rejection V OUT V IN COUT = 4.7µF, IOUT = 100mA Freq. = 1kHz 85 dB Freq. = 10kHz 70 Freq. = 1MHz 60 Dynamic Line Regulation ∆V OUT(line) VIN: VOUT(NOM)+1V to VOUT(NOM)+2V, tr/tf = 2µs; IOUT = 100mA 4m V Dynamic Load Regulation ∆VOUT(load) IOUT: 0 to 100mA; d(IOUT)/dt = 100mA/µs with COUT = 0.47µF with COUT = 2.2µF mV Short Circuit Current I SC VOUT = 0V 600 mA

reactive impedance of the load resistance and capacitance. the regulator must be high, looking like a current source. implement the pole-zero scheme outlined above. regulator goes out of regulation in a 4mV transition region. providing high current surges while remaining in regulation. Figure 1. LC7080/81 RF LDO frequency response

  1. Absolute maximum ratings indicate limits which when exceeded may result in damage to the component. Electrical

specifications do not apply when operating the device outside of its rated operating conditions.

  1. Specified Min/Max limits are production tested or guaranteed through correlation based on statistical control methods.

Measurements are taken at constant junction temperature as close to ambient as possible using low duty pulse testing.

  1. Dropout voltage is defined as the input to output differential voltage at which the output voltage drops 2% below the nomina l

value measured with a 1V differential.

Figure 2. ILC7080/81 RF LDO regulator block diagram or high ambient temperature or a combination of all three. conditions and is a necessary requirement in today’s designs. Figure 3. Application circuit for adjustable output voltage

45 VADJ

thermal protection circuit to be enabled. Figure 4. Basic application circuit for fixed output voltage Ω). The value of the output capacitor should be 1µF or higher. mended ceramic capacitors for use at the output of ILC7080/81. (www.kemet.com) may be used. ting the noise bypass capacitor altogether.

45 CNOISE

tors will not cause a problem if some simple steps are taken. Figure 5. ESR in COUT and CNOISE the voltage fluctuations at the input will be filtered by the LDO. Figure 6. Inherent PCB resistance accumulation of current flows. will degrade performance of the LDO. Figure 7. Effects of poor circuit layout rent and noise bypass current return of the LDO regulator. and returned to a single point system ground.

Recommended Ceramic Output Capacitors COUT Capacitor Size I OUT Dielectric Part Number Capacitor Vendor 1µF 0805 0 to 100mA X5R C2012X5R1A105KT TDK “ 0805 “ X7R GRM40X7R105K010 muRata “ 0805 “ X7R LMK212BJ105KG Taiyo-Yuden “ 1206 “ X7R GRM42-6X7R105K016 muRata “ 1206 “ X7R EMK316BJ105KL Taiyo-Yuden “ 1206 “ X5R TMK316BJ105KL Taiyo-Yuden 2.2µF 0805 0 to 150mA X5R GRM40X5R225K 6.3 muRata “ 0805 “ X5R C2012X5R0J225KT TDK “ 1206 “ X5R EMK316BJ225ML Taiyo-Yuden 4.7µF 1206 0 to 150mA X5R GRM42-6X5R475K010 muRata “ 1206 “ X7R LMK316BJ475ML Taiyo-Yuden

10 REV. 1.0.7 4/3/03 Typical Performance Characteristics Unless otherwise specified TA =25˚C, VIN =VOUT(NOM), + 1V , ON/OFF pin tied to VIN. Characterization at output currents above 50mA applies to ILC7081. Output voltage vs Temperature 3.015 3.01 3.005 2.995 2.99 Output voltage (V) COUT = 0.47 µF (Ceramic) VOUT = 3.0V 2.985 Temperature (°C) 05 0 100 150-50 Dropout Characteristics VIN (V) 3.4 3.3 3.2 3.1 VOUT (V) COUT = 0.47 µF (Ceramic) VOUT = 3.3V 3 3.2 3.4 3.6 IOUT = 0mA IOUT = 10mA IOUT = 50mA Dropout voltage vs Temperature Dropout voltage (mV) Temperature (°C) 250 200 150 100 –40 85 25 VOUT = 3.0V IOUT = 150mA IOUT = 100mA IOUT = 50mA IOUT = 0mA 250 200 150 100 05 0 100 150 Dropout voltage vs IOUT Dropout voltage (mV) Output Current (mA) TA = –40°C TA = 85°C TA = 25°C VOUT = 3.0V 150 125 100 2468 1 0 12 14 Ground Current vs Input voltage VOUT = 3.0 V COUT = 0.47 µF (Ceramic) IOUT = 150mA IOUT = 100mA IOUT = 50mA IOUT = 10mA IOUT = 0mA VIN (V) IGND (µA) Line Transient Response 5µs/div VIN (V)VOUT (V) 3.01 3.00 2.99 2.98 VIN: tr/tf < 1 µs VOUT = 3.0V COUT = 2.2 µF (Ceramic) IOUT = 100 mA IOUT = 100mA IOUT = 150mA 7081 only

REV. 1.0.7 4/3/03 11 Typical Performance Characteristics Unless otherwise specified TA =25˚C, VIN =VOUT(NOM), + 1V , ON/OFF pin tied to VIN. Characterization at output currents above 50mA applies to ILC7081. Line Transient Response ILC7081 5µs/div VIN (V)VOUT (V) 3.01 3.00 2.99 2.98 VIN: tr/tf = 2 µs VOUT = 3.0V IOUT = 100 mA COUT = 0.47 µF (Ceramic) Line Transient Response Load Transient Response 5µs/div 100µs/div VIN (V)VOUT (V) 3.01 3.00 2.99 2.98 2.97 VIN: tr/tf = 2 µs VOUT = 3.0V IOUT = 50 mA COUT = 0.47 µF (Ceramic) 3.06 3.04 3.02 3.00 2.98 VOUT (V)IOUT (mA) COUT = 0.47 µF (Ceramic) VOUT = 3.0 V Load Transient Response ILC7081 100µs/div 3.15 3.10 3.05 3.00 100 VOUT (V)IOUT (mA) COUT = 0.47 µF (Ceramic) VOUT = 3.0V Load Transient Response ILC7081 100µs/div 3.15 3.10 3.05 3.00 2.95 100 VOUT (V)IOUT (mA) COUT = 1 µF || 0.47 µF (Ceramic) VOUT = 3.0V Short Circuit Current 5ms/div ISC (A) 1.5 1.0 VIN = 4V 0.5 Output Shorted to Gnd at time,t = 0 t = 0 Thermal Cycling

12 REV. 1.0.7 4/3/03 Typical Performance Characteristics Unless otherwise specified TA =25˚C, VIN =VOUT(NOM), + 1V , ON/OFF pin tied to VIN. Characterization at output currents above 50mA applies to ILC7081. On/Off Transient Response 500µs/div VOUT (V)VON/OFF VOUT = 3.0V IOUT = 10mA COUT = 0.47 µF (Ceramic) On/Off Transient Response 200µs/div VIN (V) VOUT = 3.0 V IOUT = 50mA COUT = 0.47 µF (Ceramic) On/Off Transient Response ILC7081 200µs/div VIN (V) VOUT = 3.0V IOUT = 100mA COUT = 0.47 µF (Ceramic) Spectral Noise Density Freq (Hz) Noise (µV/Rt Hz) 32.0 5.6 3.2 1.8 1.0 17.8 10.0 0.6 0.3 0.2 0.1 10K 100K 1M100 VOUT = 3.0 V IOUT = 50mA COUT = 0.47 µF (Ceramic) COUT = 1 µF (Ceramic) COUT = 2.2 µF (Ceramic) Spectral Noise Density 6.0 5.4 4.8 4.2 3.6 Spectral Noise Density Freq (Hz) Noise (µV/Rt Hz) 32.0 5.6 3.2 1.8 1.0 17.8 10.0 0.6 0.3 0.2 0.1 10K 100K 1M100 VOUT = 3.0 V COUT = 0.47µF (Ceramic) IOUT = 1mA IOUT = 10 mA IOUT = 50mA IOUT = 100 mA Noise (µV/Rt Hz) Freq (Hz) 1K 10K 100K100 3.0 2.4 1.8 1.2 0.6 with C OUT = 10µF (Ceramic) (For Ultra Low Noise) VOUT = 3.0 V CNOISE = 1 µF (Ceramic) VIN = 3.5V VIN = 4V VIN = 6V VIN = 8V VON/OFF VON/OFF CNOISE = 0.01 µF (ceramic) CNOISE = 0.01 µF (Ceramic) COUT = 4.7 µF (Ceramic)

REV. 1.0.7 4/3/03 13 Typical Performance Characteristics Unless otherwise specified TA =25˚C, VIN =VOUT(NOM), + 1V , ON/OFF pin tied to VIN. Characterization at output currents above 50mA applies to ILC7081. Ripple Rejection vs Frequency Frequency (Hz) 100 Ripple Rejection (dB) 1M 10M100K10K1K VOUT = 3.0V IOUT = 100mA Ripple Rejection vs Frequency Frequency (Hz) 100 Ripple Rejection (dB) 1M 10M100K10K1K VOUT = 3.0V IOUT = 10mA COUT = 4.7 µF (Ceramic) COUT = 2.2 µF (Ceramic) COUT = 4.7 µF (Ceramic) COUT = 2.2 µF (Ceramic)

14 REV. 1.0.7 4/3/03 Package Outline Dimensions Dimensions shown in inches and (mm). 5-Lead plastic surface mount (SOT -23-5) 0.118 (3.00) 0.102 (2.60) 0.037 (0.95) BSC PIN 1 0.071 (1.80) 0.055 (1.40) 0.0059 (0.15) 0.0019 (0.05) 0.019 (0.50) 0.0138 (0.35) 0.057 (1.45) 0.035 (0.90) SEATING PLANE 10° 0°0.0078 (0.2) 0.0031 (0.08) 0.0217 (0.55) 0.0138 (0.35) 0.055 (1.40) 0.0393 (1.0) 0.122 (3.10) 0.106 (2.70)

REV. 1.0.7 4/3/03 15 Ordering Information (TA = -40°C to +85°C) ILC7080AIM5-xx ILC7081AIM5-xx Summary Output voltage (V) Grade Order Information *Package Marking Supplied as:

2.6 A ILC7080AIM526x CIx 3k Units on Tape and Reel

2.7 A ILC7080AIM527x CMx 3k Units on Tape and Reel

2.8 A ILC7080AIM528x CJ0x 3k Units on Tape and Reel

2.85 A ILC7080AIM5285x CFx 3k Units on Tape and Reel

2.9 A ILC7080AIM529x CKx 3k Units on Tape and Reel

3.0 A ILC7080AIM530x CAx 3k Units on Tape and Reel

3.1 A ILC7080AIM531x CLx 3k Units on Tape and Reel

3.3 A ILC7080AIM533x CBx 3k Units on Tape and Reel

5.0 A ILC7080AIM550x CCx 3k Units on Tape and Reel

  • Note: First two characters identify the product and the last character identifies the lot code Output voltage (V) Grade Order Information *Package Marking Supplied as:

2.5 A ILC7081AIM525x CXx 3k Units on Tape and Reel

2.6 A ILC7081AIM526x CPx 3k Units on Tape and Reel

2.7 A ILC7081AIM527x CNx 3k Units on Tape and Reel

2.8 A ILC7081AIM528x CJx 3k Units on Tape and Reel

2.85 A ILC7081AIM5285x CVx 3k Units on Tape and Reel

2.9 A ILC7081AIM529x COx 3k Units on Tape and Reel

3.0 A ILC7081AIM530x CQx 3k Units on Tape and Reel

3.1 A ILC7081AIM531x CYx 3k Units on Tape and Reel

3.3 A ILC7081AIM533x CRx 3k Units on Tape and Reel

3.6 A ILC7081AIM536x CTx 3k Units on Tape and Reel

4.7 A ILC7081AIM547x CWx 3k Units on Tape and Reel

5.0 A ILC7081AIM550x CSx 3k Units on Tape and Reel

ADJ A ILC7081AIM5ADJx CUx 3k Units on Tape and Reel * Note: First two characters identify the product and the last character identifies the lot code ILC7080AIM5xx 50mA, fixed voltage ILC7081AIM5xx 100mA, fixed voltage ILC7081AIM5ADJ 100mA, adjustable voltage

4/3/03 0.0m 001 Stock#DS30007080 2002 Fairchild Semiconductor Corporation LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD 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 (c) 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 of the user. 2. A critical component in 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. www.fairchildsemi.com DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.