Diodes AP7167 User Manual
Ap7167, 2a low dropout regulator with pok, Description
AP7167
1.2A LOW DROPOUT REGULATOR WITH POK
AP7167
Document number: DS31252 Rev. 7 - 2
1 of 14
September 2010
© Diodes Incorporated
Description
The AP7167 is a 1.2A, adjustable output voltage, ultra-low
dropout linear regulator. The device includes pass element,
error amplifier, band-gap reference, current limit and thermal
shutdown circuitry. The device is turned on when EN pin is
set to logic high level. A Power-OK (POK) output is available
for power sequence control.
The characteristics of the low dropout voltage and low
quiescent current make it suitable for low to medium power
applications, for example, laptop computers, audio and video
applications, and battery powered devices. The typical
quiescent current is approximately 125µA.
Built-in current-limit and thermal-shutdown functions prevent
IC from damage in fault conditions.
The AP7167 are available in DFN3030-10 and SOP-8L
packages.
Features
• Wide input voltage range: 2.2V – 5.5V
• 230mV very low dropout at 500mA load
• 500mV very low dropout at 1A load
• 3% total accuracy over line, load and temperature
• Very low quiescent current (IQ): 125µA typical
• Adjustable output voltage range: 0.8V to 5.0V
• Very fast transient response
• High
PSRR
• Accurate voltage regulation
• Current limiting and short circuit protection
• Thermal shutdown protection
• Stable with any type output capacitor
≥ 4.7µF
• Ambient temperature range -40ºC to 85 ºC
• DFN3030-10 and SOP-8L-EP: Available in “Green”
Molding Compound (No Br, Sb)
• Lead Free Finish/ RoHS Compliant (Note 1)
Pin Assignments
( Top View )
FB
EN
IN
GND
OUT
POK
1
2
5
NC
IN
3
4
6
8
7
10
9
NC
OUT
DFN3030-10
FB
POK
EN
IN
OUT
GND
OUT
( Top View )
1
2
3
4
8
7
6
5
IN
SOP-8L-EP
Applications
• Servers and laptops
• Smart phone and PDA
• MP3/MP4
• Bluetooth
headset
• Low and medium power applications
• FPGA and DSP core or I/O power
Notes: 1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at