AME, Inc.
AME7739
Step-Up / Step-Down
60mA Regulated Charge Pump
n
Functional Block Diagram
V
IN
φ2
C-
C+
φ1
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
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 cir-
cuit conditions.
The AME7739 is available in SOT-26 package and is
rated from -40
O
C to 85
O
C.
φ1
φ2
V
OUT
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
1MH
Z
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+
C
PUMP
= 0.22µF
3.0V to 5.5V
V
IN
IN
OUT
5V / 60mA
V
OUT
C
OUT
= 2.2µF
AME
7739
GND
C-
C
IN
= 2.2µF
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. C-
5. 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
C-
IN
C+
Description
Regulator Output Pin.
V
OUT
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.
V
IN
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
Number
Package Type
of
Pins
E: SOT-2X
Y: 6
Output
Voltage
Special Feature
A
(SOT-26)
1. OUT
2. GND
3. EN
4. C-
5. IN
6. C+
E: -40
O
C to 85
O
C
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
- 40
o
C to 85
o
C
- 40
o
C to 85
o
C
- 40
o
C to 85
o
C
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~V
IN
+ 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
T
A
T
J
T
STG
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
θ
JC
θ
JA
P
D
Maximum
81
Unit
o
C/W
260
400
150
350
mW
o
o
C
C
* Measure
θ
JC
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.)
T
A
= -40
o
C to 85
o
C, V
IN
= V
OUT
/2+0.75V, I
OUT
= 5mA, C
IN
= 2.2µF, C
OUT
=2.2µF, C
PUMP
= 0.22
µF,
V
EN
= 1.3V
Typical Values are at T
A
=25
o
C
Parameter
Symbol
Test Conditions
V
OUT
= 5.5V
Input Voltage
V
IN
V
OUT
= 5V
V
OUT
= Others
I
OUT
<= 60mA, 3.3V < V
IN
< 5.5V
I
OUT
<= 15mA, 2.7V < V
IN
< 5.5V
I
OUT
<= 60mA, 3.0V < V
IN
< 5.5V
I
OUT
<= 15mA, 1.8V < V
IN
< 5.5V
I
OUT
<= 60mA, 2.2V < V
IN
< 5.5V
Output Voltage
V
OUT
I
OUT
<= 15mA, 1.8V < V
IN
< 5.5V
I
OUT
<= 60mA, 2.2V < V
IN
< 5.5V
I
OUT
<= 15mA, 1.8V < V
IN
< 5.5V
I
OUT
<= 60mA, 2.0V < V
IN
< 5.5V
I
OUT
<= 15mA, 1.8V < V
IN
< 5.5V
I
OUT
<= 60mA, 2.0V < V
IN
< 5.5V
3V < V
IN
< 5.5V, I
OUT
= 0mA, V
OUT
= 5.5V
Quiescent Current
I
Q
2.7V < V
IN
< 5.5V, I
OUT
= 0mA, V
OUT
= 5V
1.8V < V
IN
< 5.5V, I
OUT
= 0mA, V
OUT
= Others
Shutdown Current
Output Current
Short Circuit Current Limit
Ripple Voltage (Note1)
Efficiency
Frequency
EN Input Threshold High
EN Input Threshold Low
EN Input Current
Over Temperature Shutdown
Over Temperature Hysterisis
I
SHDN
I
OUT
I
SC
V
RIPPLE
η
f
OSC
V
EH
V
EL
I
EN
OTS
OTH
V
EN
= V
IN
, V
EN
= GND
160
20
1.8V < V
IN
< 5.5V, V
EN
= GND
V
OUT
= 5V
V
OUT
= GND
V
IN
= 3V, I
OUT
= 60mA, V
OUT
= 5V
V
IN
= 3.3V, I
OUT
= 60mA, V
OUT
= 5.5V
I
OUT
= 15mA, V
IN
= 2.7V, V
OUT
= 5V
Oscillator Free Running
1.3
0.6
0.1
60
80
60
70
90
1.0
0.01
1
mA
mA
mVp-p
%
MHz
V
V
µ
A
o
Min
3
2.7
1.8
5.23
4.75
Typ
Max
5.5
5.5
5.5
Units
V
5.5
5
5.77
5.25
3.14
3.3
3.46
V
2.85
3
3.15
2.57
2.7
2.83
2.38
2.5
2.62
60
100
µ
A
C
Note 1: Effective series resistance (ESR) of capacitors is < 0.1Ω.
5
Rev.A.02
嵌入式系统
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