AME8821AEEV180Z

AME, Inc. AME8821 n General Description 250mA Hi-PSRR, Low-Quiescent LDO with In-Rush Current Control For USB Application n Applications l Instrumentation l Portable Electronics l W ireless Devices l Cordless Phones l PC Peripherals l Battery Powered Widgets The AME8821 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/TSOT-25 packages are attractive for “Pocket” and “Hand Held”applications. These rugged devices have both Thermal Shutdown, and Current Limitation to prevent device failure under the “Worst” operating conditions. In application requires a low noise regulated supply. The AME8821 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 AME8821 also features a logic-enabled sleep mode to shutdown the regulator, reducing quiescent current to 1µA typical at T A= 25oC. The AME8821 is stable with an output capacitance of 4.7µF or larger. n Function Block Diagram VIN * ENB or EN 10KΩ AMP Vref GND R2 SR VOUT Current Limit / Thermal Protection R1 * AME8821A: ENB, AME8821B: EN n Features l Guaranteed 250mA Output l 17µA Quiescent Current l Over-Temperature Shutdown l Over-Current Limitation l Noise Reduction SR Capacitor l Power-Saving Shutdown Mode l Space-Saving SOT-25/TSOT-25 Packages l Factory Pre-set Output Voltages l Enable pin option l ENB active low enable l EN active high enable l All AME's Lead Free Products Meet RoHS Standards n Typical Application VIN 1µF IN SR AME8821A ENB GND OUT 0.01µF 4.7µF + VIN 1µ F IN SR AME8821B EN GND OUT 0.01µF 4.7µF + Rev.A.01 1 AME, Inc. AME8821 n Pin Configuration SOT-25/TSOT-25 Top View 5 4 250mA Hi-PSRR, Low-Quiescent LDO with In-Rush Current Control For USB Application SOT-25/TSOT-25 Top View AME8821AEEV 1. IN 2. GND 5 4 AME8821BEEV 1. IN 2. GND AME8821 3. ENB 4. SR 5. OUT AME8821 3. EN 4. SR 5. OUT 1 2 3 * Die Attach: Conductive Epoxy 1 2 3 * Die Attach: Conductive Epoxy n Pin Description Pin Number 1 2 Pin Name IN GND Pin Description Input voltage pin. It should be decoupled with 1µF or greater capacitor. Ground connection pin. Enable pin. When pulled low, the PMOS pass transistor turns off, current consuming less than 1µA. Enable bar pin. When pulled high, the PMOS pass transistor turns off, current consuming less than 1µA. The SR(Slew Rate) terminal is used to control the VOUT in-rush current. LDO voltage regulator output pin. It should be decoupled with a 4.7µF or greater value low ESR ceramic capacitor. EN 3 ENB 4 SR 5 OUT 2 Rev.A.01 AME, Inc. AME8821 n Ordering Information 250mA Hi-PSRR, Low-Quiescent LDO with In-Rush Current Control For USB Application AME8821 x x x x xxx x Special Feature Output Voltage Number of Pins Package Type Operating Ambient Temperature Range Pin Configuration Operating Ambient Temperature Range E: -40OC to 85OC Pin Configuration Package Type Number of Pins V: 5 Output Voltage Special Feature A: 1. (SOT-25) 2. (TSOT-25) 3. 4. 5. B: 1. 2. (TSOT-25) 3. 4. 5. (SOT-25) IN GND ENB SR OUT IN GND EN SR OUT E: SOT-2X 180: 250: 285: 300: 330: V=1.8V V=2.5V V=2.85V V=3.0V V=3.3V Y: Lead free & Low profile Z: Lead free Rev.A.01 3 AME, Inc. AME8821 n Ordering Information Part Number AME8821AEEV180Z AME8821AEEV180Y AME8821AEEV250Z AME8821AEEV250Y AME8821AEEV285Z AME8821AEEV285Y AME8821AEEV300Z AME8821AEEV300Y AME8821AEEV330Z AME8821AEEV330Y AME8821BEEV180Z AME8821BEEV180Y AME8821BEEV250Z AME8821BEEV250Y AME8821BEEV285Z AME8821BEEV285Y AME8821BEEV300Z AME8821BEEV300Y AME8821BEEV330Z AME8821BEEV330Y 250mA Hi-PSRR, Low-Quiescent LDO with In-Rush Current Control For USB Application Marking* BHXww BHXww BHYww BHYww BHZww BHZww BIAww BIAww BIBww BIBww BICww BICww BIDww BIDww BIEww BIEww BIFww BIFww BIGww BIGww Output Voltage 1.8V 1.8V 2.5V 2.5V 2.85V 2.85V 3.0V 3.0V 3.3V 3.3V 1.8V 1.8V 2.5V 2.5V 2.85V 2.85V 3.0V 3.0V 3.3V 3.3V Package SOT-25 TSOT-25 SOT-25 TSOT-25 SOT-25 TSOT-25 SOT-25 TSOT-25 SOT-25 TSOT-25 SOT-25 TSOT-25 SOT-25 TSOT-25 SOT-25 TSOT-25 SOT-25 TSOT-25 SOT-25 TSOT-25 Operating Ambient Temperature Range - 40oC to 85oC - 40oC to 85oC - 40oC to 85oC - 40oC to 85oC - 40oC to 85oC - 40oC to 85oC - 40oC to 85oC - 40oC to 85oC - 40oC to 85oC - 40oC to 85oC - 40oC to 85oC - 40oC to 85oC - 40oC to 85oC - 40oC to 85oC - 40oC to 85oC - 40oC to 85oC - 40oC to 85oC - 40oC to 85oC - 40oC to 85oC - 40oC to 85oC Note: ww represents the date code and pls refer to the Date Code Rule before Package Dimension. * A line on top of the first character represents lead free plating such as BHXww. Please consult AME sales office or authorized Rep./Distributor for output voltage and package type availability. 4 Rev.A.01 AME, Inc. AME8821 n Absolute Maximum Ratings Parameter Input Voltage Output Current Output Voltage ESD Classification 250mA 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) Internal Power Dissipation Solder Iron (10 Sec)** SOT-25 TSOT-25 Conductive Epoxy Package Die Attach Symbol θJC θJA PD Maximum 81 Unit o C/W 260 400 350 mW o C * Measure θJC on center of molding compound if IC has no tab. ** MIL-STD-202G 210F Rev.A.01 5 AME, Inc. AME8821 n Electrical Specifications 250mA Hi-PSRR, Low-Quiescent LDO with In-Rush Current Control For USB Application Over operating temperature range(TJ = -40oC to 125oC), VIN = VOUT(nom) + 1V, or VIN = VIN(min) whichever is greater, IOUT = 1mA, VEN = VIN(VENB = 0), and COUT = 4.7µF, CIN = 1µF unless otherwise noted. Typical values are at T A = 25oC. Parameter Input Voltage Output Voltage Accuracy Symbol VIN VOUT(nom) TA = 25 C TJ = -40oC to 125oC VOUT = 1.8V, 2.5V < VIN < 5.5V Output Voltage Line Regulation VOUT = 2.5V, 3V < VIN < 5.5V REGLINE VOUT = 2.85V, 3.3V < VIN < 5.5V VOUT = 3.0V, 3.5V < VIN < 5.5V VOUT = 3.3V, 3.8V < VIN < 5.5V Output Current Output Current Limit Quiescent Current Output Voltage Load Regulation IOUT ILIM IQ TA = 25oC o o Test Condition Min Note1 -1.5 -3 -0.30 Typ Max 5.5 1.5 3 Units V % 0.2 0.3 0.4 TJ = -40oC to 125oC -0.40 TA = 25 C o -0.25 0.15 0.25 0.35 TJ = -40oC to 125oC -0.35 TA = 25 C TA = 25oC o ∆VOUT x ∆VIN VOUT -0.25 0.15 0.25 0.35 x 100% TJ = -40oC to 125oC -0.35 -0.25 0.15 TJ = -40oC to 125oC -0.35 TA = 25 C TJ = -40oC to 125oC -0.2 -0.3 250 300 o %/V 0.25 0.35 0.1 0.2 0.3 mA (See Note2) VOUT = 0V, TA = 25oC 10µA < IOUT < 250mA 10µA < IOUT < 250mA TA = 25 C TJ = -40oC to 125oC 350 17 750 25 30 mA µA ∆VOUT VOUT x 100% REGLOAD 1mA