AP7332
DUAL 300mA LOW QUIESCENT CURRENT FAST
TRANSIENT LOW DROPOUT LINEAR REGULATOR
AP7332
Document number: DS35132 Rev. 3 - 2
1 of 18
www.diodes.com
August 2011
© Diodes Incorporated
NEW PRODUCT
Description
The AP7332 is 300mA, dual fixed output voltage, low dropout
linear regulator. The AP7332 includes the pass element,
error amplifier, band-gap, current limit and thermal shutdown
circuitry which protect the IC from damage in fault conditions.
The AP7332 has two enable pins (EN1 and EN2) to
independently turn the respective channel on when a logic
high level is applied.
The characteristics of low dropout voltage and low quiescent
current make it suitable for low power applications. The
typical quiescent current is approximately 60μA.
This device is available with fixed output options of
1.0V/1.0V, 1.0V/3.3V, 1.2V/1.8V, 1.2V/3.3V, 1.5V/2.8V,
1.5V/3.0V, 1.5V/3.3V, 1.8V/2.7V, 1.8V/2.8V, 1.8V/3.0V,
1.8V/3.3V, 2.5V/3.0V, 2.8V/3.3V and 3.3V/3.3V.
For other output options please contact our local sales
representative directly or through our distributor located in
your area.
The AP7332 is available in SOT26 and DFN2018-6
packages.
Features
• 300mA Low Dropout Regulator with EN
• Very low IQ: 60µA
• Wide input voltage range: 2V to 6V
• Fixed output options: 1.0V to 3.3V
• High PSRR: 65dB at 1kHz
• Fast start-up time: 60µs
• Stable with low ESR, 1µF ceramic output capacitor
• Excellent Load/Line Transient Response
• Low dropout: 300mV at 300mA
• Current limit protection
• Short circuit protection
• Thermal shutdown protection
• Ambient temperature range: -40ºC to 85°C
• SOT26 and DFN2018-6: Available in “Green” Molding
Compound (No Br, Sb)
• Lead Free Finish/RoHS Compliant (Note 1)
Pin Assignments
1
3
2
6
4
OUT2
GND
EN2
EN1
OUT1
5
IN
(Top View)
SOT26
IN
EN1
EN2
1
2
3
6
5
4
OUT1
OUT2
GND
(Top View)
DFN2018-6
Applications
• Cellular Phones
• Smart Phones, PDAs
• MP3/MP4
• Bluetooth head set
• Low power application
Note: 1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at
http://www.diodes.com/products/lead_free.html.
