AME, Inc.
AME7739
Step-Up / Step-Down 60mA Regulated Charge Pump
n Functional Block Diagram
VIN φ2 CC+ φ1
n General Description
The AME7739 is a charge pump voltage converter that delivers a regulated output. No external inductor is required for operation. Using three small capacitors, the AME7739 can deliver up to 60mA to the voltage regulated 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 and small package 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 circuit conditions. The AME7739 is available in SOT-26 package and is rated from -40OC to 85OC.
φ1
φ2 VOUT φ1 φ2 Control EA +
EN
GND
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 Typical Application
C+ CPUMP = 0.22µF 3.0V to 5.5V VIN IN
OUT
5V / 60mA VOUT COUT = 2.2µF
AME 7739
GND
CIN = 2.2µF
C-
EN
ON OFF
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
1
Rev.A.02
AME, Inc.
AME7739
Step-Up / Step-Down 60mA Regulated Charge Pump
n Pin Configuration
SOT-26 Top View
6 5 4
AME7739AEEY 1. OUT 2. GND
AME7739
3. EN 4. C5. IN
1
2
3
6. C+ * Die Attach: Conductive Epoxy
n Pin Description
Pin Number
1 2 3 4 5 6
Pin Name
OUT GND EN CIN 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
AME, Inc.
AME7739
Step-Up / Step-Down 60mA Regulated Charge Pump
n Ordering Information AME7739 x x x x xxx x
Special Feature Output Voltage Number of Pins Package Type Operating Ambient Temperature Range Pin Configuration
Pin Configuration
Operating Ambient Temperature Range
Package Type
Number of Pins Y: 6
Output Voltage
Special Feature
A
(SOT-26)
1. OUT 2. GND 3. EN 4. C5. IN 6. C+
E: -40OC to 85OC
E: SOT-2X
330: V=3.3V 500: V=5V 550: V=5.5V
Z: Lead free
n Ordering Information
Part Number
AME7739AEEY330Z AME7739AEEY500Z AME7739AEEY550Z
Marking*
BJFww BENww BDWww
Output Voltage
3.3V 5V 5.5V
Package
SOT-26 SOT-26 SOT-26
Operating Ambient Temperature Range
- 40oC to 85oC - 40oC to 85oC - 40oC to 85oC
Note: ww represents the date code and pls refer to Date Code Rule before Package Dimension. * A line on top of the first letter represents lead free plating such as BJFww. Please consult AME sales office or authorized Rep./Distributor for the availability of package type.
3
Rev.A.02
AME, Inc.
AME7739
Step-Up / Step-Down 60mA Regulated Charge Pump
n Absolute Maximum Ratings
Parameter
Input Voltage, Output Voltage, C-, C+ EN ESD Classification
Maximum
-0.3~5.5
Unit
V
-0.3~VIN + 0.3 B*
Note: Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device. *HBM B:2000V~2999V
n Recommended Operating Conditions
Parameter
Ambient Temperature Range Junction Temperature Range Storage Temperature Range
Symbol
TA TJ TSTG
Rating
- 40 to 85 - 40 to 125 - 65 to 150
Unit
o
C C C
o
o
n Thermal Information
Parameter
Thermal Resistance* (Junction to Case) Thermal Resistance (Junction to Ambient) Internal Power Dissipation Maximum Junction Temperature Solder Iron (10 Sec)** SOT-26 Conductive Epoxy
Package
Die Attach
Symbol
θJC θJA PD
Maximum
81
Unit
o
C/W
260
400 150 350
mW
o o
C C
* Measure θJC on backside center of molding compund if IC has no tab. ** MIL-STD-202G 210F
4
REV. A.02
AME, Inc.
AME7739
Step-Up / Step-Down 60mA Regulated Charge Pump
n Electrical Specifications (Contd.)
TA= -40oC to 85oC, VIN = VOUT/2+0.75V, IOUT = 5mA, CIN = 2.2µF, COUT=2.2µF, CPUMP = 0.22 µF, VEN= 1.3V Typical Values are at TA=25oC
Parameter Symbol Test Conditions VOUT = 5.5V Input Voltage VIN VOUT = 5V VOUT = Others IOUT
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