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AME7739 Datasheet Preview

AME7739 Datasheet

Step-Up/Step-Down 60mA Regulated Charge Pump

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AME, Inc.
AME7739
n General Description
The AME7739 is a charge pump voltage converter that
delivers a regulated output. No external inductor is re-
quired for operation. Using three small capacitors, the
AME7739 can deliver up to 60mA to the voltage regu-
lated output. The AME7739 features very low output ripple
and high efficiency over a large portion of its load range
making this device ideal for battery-powered applications.
Furthermore, the combination of few external components
www.DaantadShsemeat4llUp.caocmkage size keep the total converter board
area to a minimum in space restricted applications.
The AME7739 contains a thermal management circuit
to protect the device under continuous output short cir-
cuit conditions.
The AME7739 is available in SOT-26 package and is
rated from -40OC to 85OC.
n Features
l Output Voltage Range:
5.5V, 5V, 3.3V, 3.0V, 2.7V, 2.5V
l Accurate to with ±5%
l 1MHZ Switching Frequency
l Shutdown Supply Current < 1µA
l Short Circuit Protection:Typ. 80mA
l Over Temperature Protection
l All AME's Lead Free Product Meet RoHS
Standards
n Applications
l Cellular Phone
l Digital Camera
l PDAs LCD display
l LED/Display Back Light Driver
l Smart Card Reader
l SIM Card Supply
l PCMCIA Card
l LCD Display
Step-Up / Step-Down
60mA Regulated Charge Pump
n Functional Block Diagram
VIN
φ2
C-
C+
φ1
φ1
φ1 φ2
EN
Control
φ2
-
EA
+
VOUT
GND
n Typical Application
CPUMP = 0.22µF
3.0V to 5.5V
VIN
C+ OUT
AME
IN 7739 GND
5V / 60mA
VOUT
COUT = 2.2µF
CIN = 2.2µF
C- EN ON OFF
1 Rev.A.02




AME

AME7739 Datasheet Preview

AME7739 Datasheet

Step-Up/Step-Down 60mA Regulated Charge Pump

No Preview Available !

AME, Inc.
AME7739
n Pin Configuration
SOT-26
Top View
65
4
AME7739
www.DataSheet4U.com
123
AME7739AEEY
1. OUT
2. GND
3. EN
4. C-
5. IN
6. C+
* Die Attach:
Conductive Epoxy
Step-Up / Step-Down
60mA Regulated Charge Pump
n Pin Description
Pin Number
1
Pin Name
OUT
2 GND
3 EN
4 C-
5 IN
6 C+
Description
Regulator Output Pin.
VOUT should be bypassed with a 2.2uF low ESR ceramic capacitor.
Ground Pin Connection.
Enable Input.
Active Low disable the regulator.
Pump Capacitor Negative Terminal.
Input Supply Pin.
VIN should be bypassed with a 2.2uF low ESR ceramic capacitor.
Pump Capacitor Positive Terminal.
2 REV. A.02


Part Number AME7739
Description Step-Up/Step-Down 60mA Regulated Charge Pump
Maker AME
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AME7739 Datasheet PDF






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