AP2112
600mA CMOS LDO REGULATOR WITH ENABLE
Description
Pin Assignments
The AP2112 is CMOS process low dropout linear regulator with
enable function, the regulator delivers a guaranteed 600mA (min.)
continuous load current.
The AP2112 is available with a fixed output voltage of 1.2V, 1.8V,
2.5V, 2.6V, or 3.3V. The LDO has an output accuracy of ±1.5% and a
very fast loop response providing excellent performance for dealing
with line and load transients. The AP2112 includes an auto discharge
function which connects the output to ground via 60 of resistance
when the device is disabled.
(Top View)
VIN
GND
EN
(Top View)
1
5
VOUT
2
3
4
NC
VOUT
1
8
VIN
NC
2
7
GND
NC
3
6
GND
NC
4
5
EN
SOT25
The regulator features low power consumption, and provides SOT25,
SOT89-5, and SO-8 packages. Previously SOT-23-5, SOT-89-5 and
SOIC-8 packages were respectively identified as SOT23-5, SOT89-5
and SO-8 but have been renamed to match the latest Diodes
Incorporated‘s nomenclature.
SO-8
(Top View)
(Top View)
VOUT
VIN
VOUT
VIN
5
4
5
4
2
3
1
2
3
GND
EN
EN
GND
NC
Features
Output Voltage Accuracy: ±1.5%
Output Current: 600mA (Min.)
Foldback Short Current Protection: 50mA
Enable Function to Turn ON/OFF VOUT
Low Dropout Voltage (3.3V): 250mV (Typ.) @IOUT = 600mA
Excellent Load Regulation: 0.2%/A (Typ.)
Excellent Line Regulation: 0.02%/V (Typ.)
Low Quiescent Current: 55µA (Typ.)
Low Standby Current: 0.01µA (Typ.)
Low Output Noise: 50µVRMS
1
NC
(R5 Package)
(R5A Package)
SOT89-5 (Option 1)
(Top View)
(Top View)
VOUT
VIN
VOUT
VIN
5
4
5
4
2
3
1
2
3
GND
EN
EN
GND
NC
PSRR: 100Hz -65dB, 1kHz -65dB
OTSD Protection
Stable with 1.0µF Flexible Cap: Ceramic, Tantalum and
Aluminum Electrolytic
Operation Temperature Range: -40°C to +85°C
ESD: MM 400V, HBM 4000V
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
1
NC
(R5 Package)
(R5A Package)
SOT89-5 (Option 2)
Applications
Laptop Computer
LCD Monitor
Portable DVD
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated‘s definitions of Halogen- and Antimony-free, "Green"
and Lead-free.
3. Halogen- and Antimony-free "Green‖ products are defined as those which contain
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