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PDF AME7739 Data sheet ( Hoja de datos )
| Número de pieza | AME7739 | |
| Descripción | Step-Up/Step-Down 60mA Regulated Charge Pump | |
| Fabricantes | AME | |
| Logotipo |  |
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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
1 page  
AME, Inc.
AME7739
Step-Up / Step-Down
60mA Regulated Charge Pump
n Electrical Specifications (Contd.)
T=
A
-40oC
to
85oC,
V
IN
=
V /2+0.75V,
OUT
I
OUT
=
5mA,
C
IN
=
2.2µF,
COUT=2.2µF,
C
PUMP
=
0.22
µF,
V=
EN
1.3V
Typical Values are at TA=25oC
Parameter
Symbol
Test Conditions
Min Typ Max
Units
Input Voltage
www.DataSheet4U.com
Output Voltage
VIN
VOUT
VOUT = 5.5V
VOUT = 5V
VOUT = Others
IOUT <= 60mA, 3.3V < VIN < 5.5V
IOUT <= 15mA, 2.7V < VIN < 5.5V
IOUT <= 60mA, 3.0V < VIN < 5.5V
IOUT <= 15mA, 1.8V < VIN < 5.5V
IOUT <= 60mA, 2.2V < VIN < 5.5V
IOUT <= 15mA, 1.8V < VIN < 5.5V
IOUT <= 60mA, 2.2V < VIN < 5.5V
3 5.5
2.7 5.5
1.8 5.5
5.23 5.5 5.77
V
4.75 5 5.25
3.14 3.3 3.46
2.85 3 3.15
V
IOUT <= 15mA, 1.8V < VIN < 5.5V
IOUT <= 60mA, 2.0V < VIN < 5.5V
IOUT <= 15mA, 1.8V < VIN < 5.5V
IOUT <= 60mA, 2.0V < VIN < 5.5V
3V < VIN < 5.5V, IOUT = 0mA, VOUT = 5.5V
2.57 2.7 2.83
2.38 2.5 2.62
Quiescent Current
Shutdown Current
Output Current
Short Circuit Current Limit
IQ
ISHDN
IOUT
ISC
2.7V < VIN < 5.5V, IOUT = 0mA, VOUT = 5V
1.8V < VIN < 5.5V, IOUT = 0mA, VOUT = Others
1.8V < VIN < 5.5V, VEN = GND
VOUT = 5V
VOUT = GND
60
60 100
0.01 1
80
µA
mA
mA
Ripple Voltage (Note1)
VRIPPLE
Efficiency
Frequency
EN Input Threshold High
EN Input Threshold Low
EN Input Current
Over Temperature Shutdown
Over Temperature Hysterisis
η
fOSC
VEH
VEL
IEN
OTS
OTH
VIN = 3V, IOUT = 60mA, VOUT = 5V
VIN = 3.3V, IOUT = 60mA, VOUT = 5.5V
IOUT = 15mA, VIN = 2.7V, VOUT = 5V
Oscillator Free Running
VEN = VIN, VEN = GND
60
mVp-p
70
90 %
1.0 MHz
1.3 V
0.6 V
0.1 µA
160
oC
20
Note 1: Effective series resistance (ESR) of capacitors is < 0.1Ω.
5 Rev.A.02
5 Page 
www.DataSheet4U.com
www.ame.com.tw
E-Mail: [email protected]
Life Support Policy:
These products of AME, Inc. are not authorized for use as critical components in life-support
devices or systems, without the express written approval of the president
of AME, Inc.
AME, Inc. reserves the right to make changes in the circuitry and specifications of its devices and
advises its customers to obtain the latest version of relevant information.
© AME, Inc. , February 2007
Document: 1033-DS7739-A.02
Corporate Headquarter
AME, Inc.
2F, 302 Rui-Guang Road, Nei-Hu District
Taipei 114, Taiwan, R.O.C.
Tel: 886 2 2627-8687
Fax: 886 2 2659-2989
U.S.A. (Subsidiary)
Analog Microelectronics, Inc.
3100 De La Cruz Blvd., Suite 201
Santa Clara, CA. 95054-2438
Tel : (408) 988-2388
Fax: (408) 988-2489
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet AME7739.PDF ] | |
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