AP7340
150mA HIGH PSRR LOW NOISE LDO WITH ENABLE
Description Pin Assignments
The AP7340 is a low dropout regulator with high output voltage
accuracy, low R , high PSRR, low output noise and low quiescent
DSON
current. This regulator is based on a CMOS process.
The AP7340 includes a voltage reference, error amplifier, current limit
circuit and an enable input to turn it on and off. With the integrated
resistor network, fixed output voltage versions can be delivered.
With its low power consumption and line and load transient response,
the AP7340 is well suited for low power handheld communication
equipment.
The AP7340 is packaged in an X2-DFN1010-4 package and allows
for smallest footprint and dense PCB layout.
PIN1 V , PIN2 GND, PIN3 EN, PIN4 V
OUT IN
Features Applications
Low V and wide V Range: 1.7V to 5.25V Smart Phone/PAD
IN IN
Guarantee Output Current,150mA RF Supply
V accuracy 1% Cameras
OUT
Ripple Rejection 75dB at 1kHz Portable Video
Low Output Noise, 60uVrms from 10Hz to 100kHz Portable Media Player
Quiescent Current as low as 35A Wireless Adapter
V fixed 1.1V to 3.3V Wireless Communication
OUT
Totally Lead-Free & and Fully RoHS Compliant
(Notes 1 & 2)
Halogen and Antimony Free, Green Device (Note 3)
Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See
AP7340
Pin Descriptions
PIN No
Pin Name Function
X2-DFN1010-4
V 1 Power Output Pin
OUT
GND 2 Ground
Enable Pin
EN 3 This pin should be driven either high or low and must not be floating. Driving this pin high enables the
regulator, while pulling it low puts the regulator into shutdown mode
V 4 Power Input Pin
IN
In PCB layout, it is preferred to use large copper area to cover this pad for better thermal dissipation,
Thermal PAD then connect this area to GND or leave it open. However, do not use it as GND electrode function
alone
Functional Block Diagram
V V
OUT OUT
V V
IN IN
- -
+ +
VREF VREF
Current Limit Current Limit
EN GND EN GND
AP7340 (non-discharge) AP7340D (with discharge)
Absolute Maximum Ratings (Note 4) (@T = +25C, unless otherwise specified.)
A
Symbol Parameter Ratings Unit
V Input Voltage 6.0 V
IN
V Input Voltage EN 6.0 V
CE
V Output Voltage -0.3 to V +0.3 V
OUT IN
I
OUT Output Current 300 mA
PD Power Dissipation 400 mW
T Operating Ambient Temperature -40 to +85 C
A
Storage Temperature
T -55 to +125 C
STG
Note: 4. a). Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only and
functional operation of the device at these conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may
affect device reliability.
b). Ratings apply to ambient temperature at +25C . The JEDEC High-K board design used to derive this data is a 2in. x 2in. multi-layer board
with 1oz. internal power and ground planes and 2oz. copper traces on the top and bottom of the board.
Recommended Operating Conditions (@T = +25C, unless otherwise specified.)
A
Symbol Parameter Min Max Unit
V Input Voltage 1.7 5.25 V
IN
Output Current 0 150 mA
IOUT
Operating Ambient Temperature -40 +85 C
T
A
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AP7340 April 2015
Diodes Incorporated
www.diodes.com
Document number: DS35282 Rev. 5 - 2