Preliminary Datasheet
1A LOW NOISE CMOS LDO REGULATOR WITH ENABLE AP2115
General Description Features
Output Voltage Accuracy: 1.5%
The AP2115 is CMOS process low dropout linear
regulator with enable function, the regulator delivers Output Current: 1A (Min.)
Fold-back Short Current Protection: 50mA
a guaranteed 1A (min.) continuous load current.
Low Dropout Voltage (3.3V): 450mV (Typ.)
@ I =1A
The AP2115 features low power consumption.
OUT
Stable with 4.7 F Flexible Cap: Ceramic,
Tantalum and Aluminum Electrolytic
The AP2115 is available in 1.2V, 1.8V, 2.5V and
Excellent Line Regulation: 0.02%/V (Typ.),
3.3V regulator output, and available in excellent
0.1%/V (Max.) @ I =30mA
output accuracy 1.5%, it is also available in an OUT
Excellent Load Regulation: 0.2%/A @
excellent load regulation and line regulation
I =1mA to 1A
performance. OUT
Low Quiescent Current: 60 A (1.2V/1.8V/
The AP2115 is available in standard packages of 2.5V)
SOIC-8 and SOT-89-5.
Low Output Noise: 30 V
RMS
PSRR: 68dB @ Freq=1kHz (1.2V/1.8V)
OTSD Protection
Operation Temperature Range: -40 C to 85C
ESD: MM 400V, HBM 4000V
Applications
LCD Monitor
LCD TV
STB
SOIC-8 SOT-89-5
Figure 1. Package Types of AP2115
Jul. 2011 Rev 1. 1 BCD Semiconductor Manufacturing Limited
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Preliminary Datasheet
1A LOW NOISE CMOS LDO REGULATOR WITH ENABLE AP2115
Pin Configuration
R5 Package
SOT-89-5
R5 R5A
VOUT VIN
5 4
123
NC GND EN
M Package
SOIC-8
Figure 2. Pin Configuration of AP2115 (Top View)
Pin Descriptions
Pin No.
Name Function
SOT-89-5 SOIC-8
1 2, 3, 4 NC/EN No connection/Chip Enable
2 6, 7 GND GND
Chip Enable, H normal work, L shutdown output/ No
3 5 EN/NC
Connection
4 8 VIN Input Voltage
5 1 VOUT Output Voltage
Jul. 2011 Rev 1. 1 BCD Semiconductor Manufacturing Limited
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