Diodes AP7312 User Manual
Ap7312, Top view) sot26
AP7312
DUAL 150mA LOW QUIESCENT CURRENT FAST
TRANSIENT LOW DROPOUT LINEAR REGULATOR
AP7312
Document number: DS35133 Rev. 2 - 2
1 of 18
January 2011
© Diodes Incorporated
NEW PROD
UC
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Description
The AP7312 is 150mA, dual fixed output voltage, low dropout
linear regulator. The AP7312 include the pass element, error
amplifier, band-gap, current limit and thermal shutdown
circuitry which protect the
IC from damage in fault
conditions. The AP7312 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 60
μA.
This device is available with fixed output options of
1.2V/1.8V, 1.2V/3.3V, 1.5V/2.5V, 1.5V/3.3V, 1.8V/2.8V,
1.8V/3.0V, 1.8V/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 AP7312 is available in SOT26 and DFN2018-6
packages.
Features
• 150mA Low Dropout Regulator with EN
• Very low IQ: 60µA
• Wide input voltage range: 2V to 6V
• Fixed output options: 1.2V 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: 150mV at 150mA
• 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