AME8831

AME, Inc. AME8831 n General Description The AME8831 family of positive, linear regulators feature low quiescent current (17µA typ.) with low dropout voltage, making them ideal for battery applications. The space-saving SOT-25 package is attractive for “ Pocket ” and “ Hand Held” applications. These rugged devices have both Thermal Shutdown, and Current limitation to prevent device failure under the “ Worst” of operating conditions. In applications requires a low noise regulated supply. The AME8831 family uses the SR pin to program the output voltage’ s slew rate to control the in-rush current. This is specifically used in the USB application where large load capacitance is present at start-up. The AME8831 also features a logic-enabled sleep mode to shutdown the regulator, reducing quiescent current to 1µA typical at TA= 25oC. The AME8831 is stable with an output capacitance of 4.7µF or larger. 150mA Hi-PSRR, Low-Quiescent LDO with In-Rush Current Control For USB Application n Applications l Instrumentation l Portable Electronics l Wireless Devices l Cordless Phones l PC Peripherals l Battery Powered Widgets l Electronic Scales n Function Block Diagram VOUT VIN * EN or EN 10 k AMP Vref GND R2 SR Current Limit / Thermal Protection R1 * AME8831A: EN, AME8831B: EN n Features l Guaranteed 150mA Output l Dropout Voltage Typically 150 mV at 150 mA l 17µA Quiescent Current l Over-Temperature Shutdown l Over-Current Limitation l Noise Reduction Bypass Capacitor l Power-Saving Shutdown Mode l Space-Saving SOT-25 Package l Factory Pre-set Output Voltages l Enable pin option l EN active low enable l EN active high enable l All AME's Lead Free Products Meet RoHS Standards n Typical Application V IN 1µ F VIN SR AME8831A EN GND VOUT 0.01µF 4.7µF + VIN VIN SR 1µ F VIN AME8831B EN GND VOUT 0.01µF 4.7µF + 1 AME, Inc. AME8831 n Pin Configuration SOT-25 Top View 5 4 150mA Hi-PSRR, Low-Quiescent LDO with In-Rush Current Control For USB Application SOT-25 Top View AME8831A 1. VIN 2. GND 5 4 AME8831B 1. VIN 2. GND AME8831 3. EN 4. SR 5. VOUT AME8831 3. EN 4. SR 5. VOUT 1 2 3 * Die Attach: Conductive Epoxy 1 2 3 * Die Attach: Conductive Epoxy n Pin Description Pin Number 1 2 3 4 5 Pin Name VIN GND EN, EN SR VOUT Pin Description The VIN terminal is the input to the device. Regulator ground. EN active low enable, EN active high enable. The SR terminal is used to control the in-rush current. The VOUT terminal is the regulated output of the device. 2 AME, Inc. AME8831 n Ordering Information 150mA Hi-PSRR, Low-Quiescent LDO with In-Rush Current Control For USB Application AME8831 x x x x xxx x Special Feature Voltage Number of Pins Package Type Operating Ambient Temperature Range Pin Configuration Operating Ambient Number Temperature Package Type of Range Pins E: -40OC to +85OC E: SOT-2X V: 5 Pin Configuration Voltage Special Feature A: 1. VIN 2. GND 3. EN 4. SR 5. VOUT B: 1. VIN 2. GND 3. EN 4. SR 5. VOUT 330: V=3.3V Y: Lead free & Low profile Z: Lead free n Ordering Information Part Number AME8831AEEV330Z AME8831AEEV330Y Marking* BDVww BDVww Output Voltage 3.3V 3.3V Package SOT-25 TSOT-25 Operating Ambient Temperature Range - 40oC to + 85oC - 40oC to + 85oC Note: ww represents the date code and pls refer to the Date Code Rule befor Package Dimension. * A line on top of the first character represents lead free plating such as BDVww. Please consult AME sales office or authorized Rep./Distributor for output voltage and package type availability. 3 AME, Inc. AME8831 n Absolute Maximum Ratings Parameter Input Voltage Output Current Output Voltage ESD Classification 150mA Hi-PSRR, Low-Quiescent LDO with In-Rush Current Control For USB Application Maximum 6 PD / (V IN - VOUT) GND-0.3 to VIN +0.3 C* Unit V mA V Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device HBM C: 4000V+ n Recommended Operating Conditions Parameter Ambient Temperature Range Junction Temperature Range Storage Temperature Range Symbol TA TJ TSTG Rating - 40 to +85 - 40 to +125 -65 to +150 Unit o C n Thermal Information Parameter Thermal Resistance* (Junction to Case) Thermal Resistance (Junction to Ambient) Internl Power Dissipation Maximum Junction Temperature Solder Iron (10 Sec)** SOT-25 Conductive Epoxy Package Die Attach Symbol θJC θJA PD Maximum 81 Unit o C/W 260 400 150 350 mW o C C o * Measure θJC on center of molding compound if IC has no tab. ** MIL-STD-202G 210F 4 AME, Inc. AME8831 n Electrical Specifications (contd.) 150mA Hi-PSRR, Low-Quiescent LDO with In-Rush Current Control For USB Application EN=0, TJ = -40 to +125oC, VIN = VOUT(typ) +1V, IOUT = 1mA, COUT = 4.7µF, C(SR) = 0.01µF (unless otherwise noted) Parameter Input Voltage Symbol VIN Test Condition (See Note1) TJ = 25oC Output Voltage VOUT 10µA < IOUT < 150mA 3.8V < V IN < 5.5V Output Current Output Current Limit Quiescent Current Line Regulation (See Note 3) Load Regulation (See Note 4) Dropout Voltage Over Temerature Shutdown Over Temerature Hysterisis VOUT Temperature Coefficient Power Supply Ripple Rejection IOUT ILIM IQ TJ = -40 oC to +125oC 3.201 0 200 TJ = 25 C TJ = -40 oC to +125oC TJ = 25oC TJ= -40 oC to +125oC TJ = 25oC TJ = 25oC TJ = -40 C to +125 C 150 20 30 f = 1 kHz, IOUT = 150mA PSRR COUT =10µF, C(SR) = 0.01 µF TJ = 25oC 65 dΒ o o o Min 3.5 Typ Max 5.5 Units V 3.3 3.399 150 350 17 30 -0.2 -0.3 0.1 0.2 0.3 750 V (See Note2) VOUT = 0V 10µA < IOUT < 150mA 10µA < IOUT < 150mA 4.3V