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AP7335A
Document number: DS35267 Rev. 4 - 2
1 of 13
www.diodes.com
August 2015
© Diodes Incorporated
AP7335A
300mA, LOW QUIESCENT CURRENT,
FAST TRANSIENT LOW DROPOUT LINEAR REGULATOR
Description
The AP7335A is a 300mA, 3.3V and 5.0V fixed output voltage, low-
dropout linear regulator with ±1% output voltage accuracy. The
device includes pass element, error amplifier, band-gap, current limit
and thermal shutdown circuitry. The device is turned on when EN pin
is set to logic high level.
The characteristics of low-dropout voltage and low-quiescent current
make it suitable for low-power applications, for example, battery
powered devices. The typical quiescent current is 35μA. Built-in,
current-limit and thermal-shutdown functions prevent IC from damage
in fault conditions.
This device is only available as a 5.0V fixed version. Please contact
your local sales office for any other voltage options.
The AP7335A is packaged in SOT25 and U-DFN2020-6.
Applications
300mA Low Dropout Regulator with EN
Very low I
Q
35µA
Fixed output at 3.3V and 5.0V
- V
IN MIN
5.5V
High PSRR: 65dB at 1kHz
Fast start-up time 220µs
Stable with low ESR, 1µF ceramic output capacitor
Excellent Load/Line Transient Response
Low dropout 150mV at 300mA
Current limit and short circuit protection
Thermal shutdown protection
Ambient temperature range -40ºC to +85°C
SOT25, and U-DFN2020-6 Available in “Green” Molding
Compound (No Br, Sb)
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Pin Assignments
Features
Smart Phones
MP3/MP4s
Battery-Powered Devices
Bluetooth Headsets
Battery Chargers
LCD TVs
Multifunction Monitors
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 <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
IN
GND
EN
OUT
NC
1
2
3 4
5
OUT
NC
NC
IN
GND
EN
6
5
4
3
1
2
SOT25
(Fixed Output)
U-DFN2020-6
(Fixed Output)
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