AAT3236IGV-3.3-T1

DATA SHEET AAT3236 300mA CMOS High Performance LDO General Decription Features The AAT3236 is a MicroPower low dropout (LDO) linear regulator designed to deliver a continuous 300mA output load current and is capable of handling short duration current peaks up to 500mA. With a very small footprint SOT23-5 package, it is ideally suited for portable applications where low noise, high power supply ripple rejection (PSRR), extended battery life, and small size are critical. The AAT3236 features fast transient response and low output self noise for powering sensitive RF circuitry. Other features include low quiescent current, typically 100µA, and low dropout voltage, typically 300mV at full output load current. The device has internal output short-circuit protection and thermal shutdown to prevent damage under extreme conditions. • 500mA Peak Output Current • Low Dropout - Typically 300mV at 300mA • Guaranteed 300mA Output • High Accuracy: ±1.5% • 100µA Quiescent Current • High Power Supply Ripple Rejection ▪ 70dB at 1kHz ▪ 50dB at 10kHz • Very Low Self Noise: 45µVrms • Noise Reduction Bypass Capacitor • Short-Circuit Protection • Over-Temperature Protection • Shutdown Mode for Longer Battery Life • Low Temperature Coefficient • Five Factory-Programmed Output Voltages • SOT23 5-Pin or SC70JW 8-Pin Package The AAT3236 also features a low-power shutdown mode for longer battery life. A bypass pin is provided to improve PSRR performance by connecting an external capacitor from the device reference output to ground. The AAT3236 is available in a Pb-free, space-saving SOT23-5 or SC70JW-8 package in five factory-programmed voltages: 2.5V, 2.8V, 3.3V, 3.5V, or 3.6V. Applications • Cellular Phones • Notebook Computers • Personal Portable Electronics • Portable Communication Devices Typical Application VIN IN ON/OFF VOUT AAT3236 EN OUT BYP GND 1µF GND 10nF 2.2µF GND Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 202256A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 9, 2012 1 DATA SHEET AAT3236 300mA CMOS High Performance LDO Pin Descriptions Pin # Symbol SOT23-5 SC70JW-8 1 2 5, 6 8 IN GND 3 7 EN 4 1 BYP 5 2, 3, 4 OUT Function Input voltage pin; should be decoupled with 1µF or greater capacitor. Ground connection pin. Enable pin. When pulled low, the PMOS pass transistor turns off and all internal circuitry enters low-power mode, consuming less than 1µA. This pin should not be left floating. Bypass capacitor connection; to improve AC ripple rejection, connect a 10nF capacitor to GND. This will also provide a soft-start function. Output pin; should be decoupled with 2.2µF capacitor. Pin Configuration SOT23-5 (Top View) IN GND 2 EN 1 5 OUT 2 3 4 BYP SC70JW-8 (Top View) BYP OUT OUT OUT 1 8 2 7 3 6 4 5 GND EN IN IN Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 202256A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 9, 2012 DATA SHEET AAT3236 300mA CMOS High Performance LDO Absolute Maximum Ratings1 TA = 25°C, unless otherwise noted. Symbol VIN VENIN(MAX) IOUT TJ Description Input Voltage Maximum EN to Input Voltage DC Output Current Operating Junction Temperature Range Value Units 6 0.3 PD/(VIN - VO) -40 to 150 mA °C Value Units 190 526 °C/W mW Rating Units (VOUT + 0.3) to 5.5 -40 to 85 V °C V Thermal Information2 Symbol Description Maximum Thermal Resistance (SOT23-5, SC70JW-8) Maximum Power Dissipation (SOT23-5, SC70JW-8) QJA PD Recommended Operating Conditions Symbol VIN T Description Input Voltage Ambient Temperature Range 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. Mounted on a demo board. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 202256A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 9, 2012 3 DATA SHEET AAT3236 300mA CMOS High Performance LDO Electrical Characteristics VIN = VOUT(NOM) + 1V, IOUT = 1mA, COUT = 2.2µF, CIN = 1µF, CBYP = 10nF, TA = -40°C to +85°C, unless otherwise noted. For typical values, TA = 25°C. Symbol VOUT IOUT VDO ISC IQ ISD DVOUT/ VOUT*DVIN Description Conditions Output Voltage Tolerance IOUT = 1mA to 300mA Output Current Dropout Voltage1 Short-Circuit Current Ground Current Shutdown Current VOUT > 1.2V IOUT = 300mA VOUT < 0.4V VIN = 5V, No Load, EN = VIN VIN = 5V, EN = 0V Line Regulation VIN = VOUT + 1 to 5.5V DVOUT(line) Dynamic Line Regulation DVOUT(load) VEN(L) VEN(H) IEN Dynamic Load Regulation Enable Threshold Low Enable Threshold High Leakage Current Enable Pin PSRR TSD THYS eN TC Power Supply Rejection Ratio Over-Temperature Shutdown Threshold Over-Temperature Shutdown Hysteresis Output Noise Output Voltage Temperature Coefficient Min TA = 25°C TA = -40 to 85°C Typ Max Units -1.5 1.5 % -2.5 2.5 300 100 VIN = VOUT + 1V to VOUT + 2V, IOUT = 150mA, TR/TF = 2µs IOUT = 1mA to 150mA, TR