Diodes AP7335A User Manual
Ap7335a, New prod uc t description, Applications
AP7335A
300mA, LOW QUIESCENT CURRENT, FAST TRANSIENT
LOW DROPOUT LINEAR REGULATOR
AP7335A
Document number: DS35267 Rev. 2 - 2
1 of 12
October 2011
© Diodes Incorporated
NEW PROD
UC
T
Description
The AP7335A is a 300mA, 5.0V fixed output voltage, low
dropout linear regulator with ±1% output voltage accuracy.
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 35
μA. Built-in current-limit and thermal-shutdown
functions prevent IC from damage in fault conditions.
This device is only available as 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
• Smart
Phones
• MP3/MP4
• Battery-powered
devices
• Bluetooth
headset
• Battery
Charger
• LCD
TV
• Multifunction
Monitors
Pin Assignments
Features
•
300mA Low Dropout Regulator with EN
•
Very low I
Q
35µA
•
Fixed output at 5.0V
o
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)
•
Lead Free Finish/ RoHS Compliant (Note 1)
Note:
1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at
Typical Application Circuit
1uF
IN
GND
EN
OUT
Enable
1uF
V
IN
V
OUT
AP7335
Fixed Output
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)