AAT3242ITP-QT-T1

DATA SHEET AAT3242 300mA/150mA Dual CMOS LDO Linear Regulator General Description Features The AAT3242 is a dual low dropout linear regulator with Power OK (POK) outputs. Two integrated regulators provide a high power 300mA output and a lower power 150mA output, making this device ideal for use with microprocessors and DSP cores in portable products. Two POK pins provide open drain output signals when their respective regulator output is within regulation. The AAT3242 has independent input voltage and enable pins for increased design flexibility. This device features a very low quiescent current (140µA typical) and low dropout voltages (typically 200mV and 400mV at the full output current level), making it ideal for portable applications where extended battery life is critical. The AAT3242 has complete over-current/short-circuit and over-temperature protection circuits to guard against extreme operating conditions. • High/Low Current Outputs, 300mA/150mA • Low Dropout: ▪ LDO A: 400mV at 300mA ▪ LDO B: 200mV at 150mA • High Output Voltage Accuracy: ±1.5% • High PSRR: 65dB at 1kHz • 70µA Quiescent Current for Each LDO • Over-Current/Short-Circuit Protection • Over-Temperature Protection • Two POK Outputs • Independent Power and Enable Inputs • Uses Low Equivalent Series Resistance (ESR) Ceramic Capacitors • 12-Pin TSOPJW and TDFN33 Packages • -40°C to +85°C Temperature Range The AAT3242 is available in the space-saving, Pb-free, 12-pin TSOPJW and TDFN33 packages. This device is capable of operation over the -40°C to +85°C temperature range. Applications • Cellular Phones • Digital Cameras • Handheld Instruments • Microprocessor / DSP Core / I/O Power • Notebook Computers • PDAs and Handheld Computers • Portable Communication Devices Typical Application VIN INA AAT3242 Enable A ENA OUTPUT A OUTA 100kΩ POKA POKA OUTPUT B OUTB INB 100kΩ POKB Enable B ENB GND POKB 2.2µF Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 202259A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 10, 2012 2.2µF 1 DATA SHEET AAT3242 300mA/150mA Dual CMOS LDO Linear Regulator Pin Descriptions Pin # TSOPJW-12 TDFN33-12 Symbol 1 12 ENA 2, 3, 8, 9 4, 10 GND 4 11 POKA 5 9 OUTB 6 7 INB 7 6 ENB 10 5 POKB 11 3 OUTA 12 n/a 1 2, 8 INA N/C Function Enable Regulator A pin; this pin should not be left floating. When pulled low, the PMOS pass transistor turns off and the device enters shutdown mode, consuming less than 1µA. Ground connection pins. For the TDFN33 package, The exposed thermal pad (EP) should be connected to the board ground plane and Pins 4 and 10. The ground plane should include a large exposed copper pad under the package with vias to the bottom layer ground plane for thermal dissipation (see package outline). Power OK pin with open drain output. It is pulled low when the OUTA pin is below the 10% regulation window. Low current (150mA) regulator output pin; should be decoupled with a 2.2µF or greater output low-ESR ceramic capacitor. Input voltage pin for Regulator B; should be decoupled with 1µF or greater capacitor. Enable Regulator B; this pin should not be left floating. When pulled low, the PMOS pass transistor turns off and the device enters shutdown mode, consuming less than 1µA. Power OK pin with open drain output. It is pulled low when the OUTB pin is below the 10% regulation window. High-current (300mA) regulator output pin; should be decoupled with a 2.2µF or greater output low-ESR ceramic capacitor. Input voltage pin for Regulator A; should be decoupled with 1µF or greater capacitor. Not connected. Pin Configuration TSOPJW-12 (Top View) 2 ENA GND GND POKA OUTB INB 1 12 2 11 3 10 4 9 5 8 6 7 INA OUTA POKB GND GND ENB TDFN33-12 (Top View) INA N/C OUTA GND POKB ENB 1 12 2 11 3 4 EP 10 9 5 8 6 7 ENA POKA GND OUTB N/C INB Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 202259A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 10, 2012 DATA SHEET AAT3242 300mA/150mA Dual CMOS LDO Linear Regulator Absolute Maximum Ratings1 Symbol VIN VENIN(MAX) IOUT2 TJ TLEAD Description Value Input Voltage Maximum EN to Input Voltage DC Output Current Operating Junction Temperature Range Maximum Soldering Temperature (at leads, 10 sec) Units 6.0 0.3 PD/(VIN - VO) -40 to 150 300 mA Value Units V °C Thermal Information Symbol Description ΘJA Thermal Resistance3 PD Maximum Power Dissipation (TA = 25°C) TSOPJW-12 TDFN33-12 TSOPJW-124 TDFN33-125 110 50 909 2 °C/W mW W 1. Stresses above those listed in Absolute Maximum Ratings may cause permanent damage to the device. Functional operation at conditions other than the operating conditions specified is not implied. 2. Based on long-term current density limitation. 3. Mounted on an FR4 board. 4. Derate 9.1mW/°C above 25°C. 5. Derate 6.25mW/°C above 25°C. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 202259A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 10, 2012 3 DATA SHEET AAT3242 300mA/150mA Dual CMOS LDO Linear Regulator Electrical Characteristics1 VIN = VOUT(NOM) + 1.0V for VOUT options greater than 1.5V. VIN = 2.5V for VOUT ≤ 1.5V. IOUT = 1.0mA, COUT = 2.2µF, CIN = 1.0µF, TA = -40°C to +85°C, unless otherwise noted. Typical values are TA = 25°C. Symbol Description Conditions Min Typ Max Units 400 1.5 2.5 5.5 600 V mV 0.09 %/V LDO A; IOUT = 300mA VOUT Output Voltage Tolerance IOUT = 1mA to 300mA TA = 25°C TA = -40 to 85°C VIN VDO DVOUT/ VOUT*DVIN Input Voltage Dropout Voltage2, 3 IOUT = 300mA Line Regulation4 VIN = VOUT + 1V to 5.0 V DVOUT(Line) Dynamic Line Regulation DVOUT(Load) VEN(L) VEN(H) VPOK VPOKHYS VPOK(LO) IPOK IOUT ISC IQ ISD Dynamic Load Regulation Enable Threshold Low Enable Threshold High Power OK Trip Threshold Power OK Hysteresis Power OK Output Voltage Low POK Output Leakage Current Output Current Short-Circuit Current Ground Current Shutdown Current PSRR Power Supply Rejection Ratio TSD THYS eN TC Over-Temperature Shutdown Threshold Over-Temperature Shutdown Hysteresis Output Noise Output Voltage Temperature Coefficient -1.5 -2.5 VOUT + VDO5 IOUT = 300mA, VIN = VOUT + 1 to VOUT + 2, TR/TF = 2µs IOUT = 1mA to 300mA, TR < 5µs 5.0 mV 60 0.6 VOUT Rising, TA = 25°C ISINK = 1mA VPOK < 5.5V, VOUT in Regulation VOUT > 1.2V VOUT < 0.4V VIN = 5V, No Load; EN A = VIN VIN = 5V, EN A = 0V 1kHz IOUT =10mA 10kHz 1MHz % 1.5 90 94 1.0 98 0.4 1.0 300 600 70 V % of VOUT V µA mA 125 1.0 65 45 42 µA dB 145 °C 12 eNBW = 300Hz to 50kHz 250 µVRMS 22 ppm/°C 1. The AAT3242 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured by design, characterization, and correlation with statistical process controls. 2. VDO is defined as VIN - VOUT when VOUT is 98% of nominal. 3. For VOUT < 2.1V, VDO = 2.5 - VOUT. 4. CIN = 10µF. 5. To calculate minimum input voltage, use the following equation: VIN(MIN) = VOUT(MAX) + VDO(MAX) as long as VIN ≥ 2.5V. 4 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 202259A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 10, 2012 DATA SHEET AAT3242 300mA/150mA Dual CMOS LDO Linear Regulator Electrical Characteristics1 (continued) VIN = VOUT(NOM) + 1.0V for VOUT options greater than 1.5V. VIN = 2.5V for VOUT ≥ 1.5V. IOUT = 1.0mA, COUT = 2.2µF, CIN = 1.0µF, TA = -40°C to +85°C, unless otherwise noted. Typical values are TA = 25°C. Symbol Description Conditions Min Typ Max Units 200 1.5 2.5 5.5 300 V mV 0.09 %/V LDO B; IOUT = 150mA VOUT Output Voltage Tolerance IOUT = 1mA to 150mA VIN VDO DVOUT/ VOUT*DVIN Input Voltage Dropout Voltage2, 3 IOUT = 150mA Line Regulation4 VIN = VOUT + 1V to 5.0V DVOUT(Line) Dynamic Line Regulation DVOUT(Load) VEN(L) VEN(H) VPOK VPOKHYS VPOK(LO) IPOK IOUT ISC IQ Dynamic Load Regulation Enable Threshold Low Enable Threshold High Power OK Trip Threshold Power OK Hysteresis Power OK Output Voltage Low POK Output Leakage Current Output Current Short-Circuit Current Ground Current PSRR Power Supply Rejection Ratio TSD THYS eN TC Over-Temperature Shutdown Threshold Over-Temperature Shutdown Hysteresis Output Noise Output Voltage Temperature Coefficient TA = 25°C TA = -40 to 85°C -1.5 -2.5 VOUT + VDO5 IOUT = 150mA, VIN = VOUT + 1 to VOUT + 2, TR/TF = 2µs IOUT = 1mA to 150mA, TR 1.2V VOUT < 0.4V VIN = 5V, No Load; EN B = VIN 1kHz IOUT = 10mA 10kHz 1MHz % 1.5 90 94 1.0 98 0.4 1.0 150 600 70 65 45 42 V % of VOUT V µA mA 125 µA dB 145 °C 12 eNBW = 300Hz to 50kHz 250 µVRMS 22 ppm/°C 1. The AAT3242 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured by design, characterization, and correlation with statistical process controls. 2. VDO is defined as VIN - VOUT when VOUT is 98% of nominal. 3. For VOUT < 2.3V, VDO = 2.5 - VOUT. 4. CIN = 10µF. 5. To calculate minimum input voltage, use the following equation: VIN(MIN) = VOUT(MAX) + VDO(MAX) as long as VIN ≥ 2.5V. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 202259A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 10, 2012 5 DATA SHEET AAT3242 300mA/150mA Dual CMOS LDO Linear Regulator Typical Characteristics Unless otherwise noted, VIN = 5V, TA = 25°C. Dropout Characteristics Dropout Voltage vs. Temperature 3.20 IL = 300mA 480 Output Voltage (V) Dropout Voltage (mV) 540 420 360 300 IL = 100mA IL = 150mA 240 180 120 60 -40 -30 -20 -10 0 2.80 IOUT = 300mA IOUT = 150mA 2.60 2.40 IOUT = 10mA 2.20 IL = 50mA 0 IOUT = 0mA 3.00 2.00 2.70 10 20 30 40 50 60 70 80 90 100 110 120 Temperature (°C) 80 Ground Current (µA) Dropout Voltage (mV) 90 450 400 350 85°C 200 25°C 150 -40°C 100 3.00 3.10 3.20 3.30 Ground Current vs. Input Voltage 500 250 2.90 Input Voltage (V) Dropout Voltage vs. Output Current 300 2.80 IOUT = 100mA IOUT = 50mA 50 70 60 IOUT = 300mA 50 IOUT = 150mA IOUT = 50mA 40 IOUT = 0mA 30 IOUT = 10mA 20 10 0 0 50 100 150 200 250 0 300 Output Current (mA) 2 2.5 3 3.5 4 4.5 5 Input Voltage (V) Quiescent Current vs. Temperature Line Transient Response 90 6 80 5 Input Voltage (V) 70 60 50 40 30 20 10 0 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 Temperature (°C) 6 3.25 VIN 3.20 4 3.15 3 3.10 2 3.05 1 0 3.00 VOUT 2.95 -1 2.90 -2 2.85 Time (100µs/div) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 202259A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 10, 2012 Output Voltage (V) Quiescent Current (µA) 100 DATA SHEET AAT3242 300mA/150mA Dual CMOS LDO Linear Regulator Typical Characteristics Unless otherwise noted, VIN = 5V, TA = 25°C. Load Transient Response 500 Output Voltage (V) 2.80 300 2.75 200 2.70 100 IOUT 2.65 0 2.60 -100 Time (100µs/div) 3.00 800 2.90 700 2.80 2.70 600 VOUT 500 2.60 400 2.50 300 2.40 200 2.30 IOUT 100 2.20 0 2.10 -100 Output Current (mA) 400 VOUT Output Current (mA) 2.85 Output Voltage (V) 2.90 Load Transient Response 300mA Time (10µs/div) Over-Current Protection POK Output Response 1200 Output Current (mA) VIN (2V/div) VOUT (2V/div) VPOK (1V/div) 1000 800 600 400 200 0 -200 Time (20ms/div) Time (200µs/div) VEN(H) and V EN(L) vs. VIN 1.250 10 1.225 1.200 1 VEN (V) Noise Amplitude (mV/rtHz) Self Noise 0.1 1.175 VEN(H) 1.150 1.125 VEN(L) 1.100 1.075 0.01 0.01 0.1 1 10 Frequency (kHz) 100 1000 1.050 2.5 3.0 3.5 4.0 4.5 5.0 5.5 Input Voltage (V) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 202259A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 10, 2012 7 DATA SHEET AAT3242 300mA/150mA Dual CMOS LDO Linear Regulator Functional Block Diagram INA OUTA Over-Current Protection Over Temperature Protection ENA + Error Amplifier - Voltage Reference POKA + 91% VREF INB OUTB Over-Current Protection Over Temperature Protection ENB + Error Amplifier - Voltage Reference POKB + 91% VREF GND Functional Description Applications Information The AAT3242 is a high performance dual LDO regulator with two Power OK pins. The first regulator (A) sources 300mA of current, while the second (B) regulator can deliver 150mA. Each regulator has an integrated Power OK comparator which indicates when the respective output is out of regulation. The POK pins are open drain outputs, and they are held low when the respective regulator is in shutdown mode. To assure the maximum possible performance is obtained from the AAT3242, please refer to the following application recommendations. The device has independent enable pins to shut down each LDO regulator for power conservation in portable products. Forcing EN A/B low (