AP7335
300mA, LOW QUIESCENT CURRENT, FAST TRANSIENT
LOW DROPOUT LINEAR REGULATOR
AP7335
Document number: DS32259 Rev. 3 - 2
1 of 16
www.diodes.com
December 2011
© Diodes Incorporated
NEW PRODUCT
Description
The AP7335 is a 300mA, adjustable and fixed output
voltage, low dropout linear regulator. The device included
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 approximately 35μA. Built-in current-limit and
thermal-shutdown functions prevent IC from damage in fault
conditions.
This device is available with adjustable output from 0.8V to
5.0V, and fixed version with 0.8V, 1.0V, 1.2V, 1.5V, 1.8V,
2.0V, 2.5V, 2.7V, 2.8V, 3.0V, 3.3V and 3.9V outputs. Please
contact your local sales office for any other voltage options.
The AP7335 is available in SOT25 and DFN2020-6
packages.
Features
• 300mA Low Dropout Regulator with EN
• Very low I
Q
: 35µA
• Wide input voltage range: 2V to 6V
• Wide adjustable output: 0.8V to 5.0V
• Fixed output options: 0.8V to 3.9V (0.1V step size
possible)
• 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 DFN2020-6: Available in “Green” Molding
Compound (No Br, Sb)
• Lead Free Finish/ RoHS Compliant (Note 1)
Pin Assignments
Applications
• Smart Phones
• MP3/MP4
• Battery-powered devices
• Bluetooth headset
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.
1
2
3
5
4
1
2
3
5
4
IN
GND
EN
IN
GND
EN
OUT
NC
OUT
ADJ
(Top View)
(Top View)
SOT25
(Fixed Output)
SOT25
(ADJ Output)
1
2
3
6
5
4
1
2
3
6
5
4
(Top View)
(Top View)
DFN2020-6
(ADJ Output)
DFN2020-6
(Fixed Output)
GND
EN
IN
GND
EN
IN
NC
NC
OUT
ADJ
NC
OUT
