AME AME7739AEEY550Z

AME, Inc.
AME7739
Step-Up / Step-Down
60mA Regulated Charge Pump
n General Description
n Functional Block Diagram
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.
C-
VIN
φ1
φ2
φ1
φ2
VOUT
φ1
The AME7739 contains a thermal management circuit
to protect the device under continuous output short circuit conditions.
C+
EN
φ2
EA
Control
+
The AME7739 is available in SOT-26 package and is
rated from -40OC to 85OC.
n Features
GND
n Typical Application
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
C+
OUT
CPUMP = 0.22µF
3.0V to 5.5V
VIN
5V / 60mA
VOUT
COUT = 2.2µF
IN
AME
7739
GND
l Over Temperature Protection
l All AME's Lead Free Product Meet RoHS
Standards
CCIN = 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.
Step-Up / Step-Down
60mA Regulated Charge Pump
AME7739
n Pin Configuration
SOT-26
Top View
6
5
AME7739AEEY
4
1. OUT
2. GND
AME7739
3. EN
4. C5. IN
1
2
3
6. C+
* Die Attach:
Conductive Epoxy
n Pin Description
2
Pin Number
Pin Name
Description
1
OUT
Regulator Output Pin.
VOUT should be bypassed with a 2.2uF low ESR ceramic capacitor.
2
GND
Ground Pin Connection.
3
EN
Enable Input.
Active Low disable the regulator.
4
C-
Pump Capacitor Negative Terminal.
5
IN
Input Supply Pin.
VIN should be bypassed with a 2.2uF low ESR ceramic capacitor.
6
C+
Pump Capacitor Positive Terminal.
REV. A.02
AME, Inc.
Step-Up / Step-Down
60mA Regulated Charge Pump
AME7739
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
A
(SOT-26)
1. OUT
2. GND
3. EN
4. C5. IN
6. C+
Operating Ambient
Temperature Range
E: -40OC to 85OC
Package Type
E: SOT-2X
Number
of
Pins
Y: 6
Output
Voltage
Special Feature
330: V=3.3V
500: V=5V
550: V=5.5V
Z: Lead free
n Ordering Information
Part Number
Marking*
Output Voltage
Package
Operating Ambient
Temperature Range
AME7739AEEY330Z
BJFww
3.3V
SOT-26
- 40oC to 85oC
AME7739AEEY500Z
BENww
5V
SOT-26
- 40oC to 85oC
AME7739AEEY550Z
BDWww
5.5V
SOT-26
- 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.
Step-Up / Step-Down
60mA Regulated Charge Pump
AME7739
n Absolute Maximum Ratings
Parameter
Maximum
Input Voltage, Output Voltage, C-, C+
Unit
-0.3~5.5
V
EN
-0.3~VIN + 0.3
B*
ESD Classification
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
Symbol
Rating
Unit
Ambient Temperature Range
TA
- 40 to 85
o
Junction Temperature Range
TJ
- 40 to 125
o
Storage Temperature Range
TSTG
- 65 to 150
o
C
C
C
n Thermal Information
Parameter
Package
Die Attach
Thermal Resistance*
(Junction to Case)
Symbol
Maximum
θJC
81
Unit
o
C/W
Thermal Resistance
(Junction to Ambient)
SOT-26
Conductive Epoxy
Internal Power Dissipation
θJA
260
PD
400
mW
Maximum Junction Temperature
150
o
C
Solder Iron (10 Sec)**
350
o
C
* Measure θJC on backside center of molding compund if IC has no tab.
** MIL-STD-202G 210F
4
REV. A.02
AME, Inc.
Step-Up / Step-Down
60mA Regulated Charge Pump
AME7739
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
Input Voltage
Symbol
VIN
Test Conditions
Min
VOUT = 5.5V
3
5.5
VOUT = 5V
2.7
5.5
VOUT = Others
1.8
5.5
IOUT <= 60mA, 3.3V < VIN < 5.5V
5.23
5.5
5.77
4.75
5
5.25
3.14
3.3
3.46
2.85
3
3.15
2.57
2.7
2.83
2.38
2.5
2.62
60
100
0.01
1
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
Output Voltage
VOUT
IOUT <= 15mA, 1.8V < VIN < 5.5V
IOUT <= 60mA, 2.2V < VIN < 5.5V
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
Typ
Max
Units
V
V
3V < VIN < 5.5V, IOUT = 0mA, VOUT = 5.5V
Quiescent Current
IQ
2.7V < VIN < 5.5V, IOUT = 0mA, VOUT = 5V
1.8V < VIN < 5.5V, IOUT = 0mA, VOUT = Others
Shutdown Current
ISHDN
1.8V < VIN < 5.5V, VEN = GND
Output Current
IOUT
VOUT = 5V
Short Circuit Current Limit
ISC
VOUT = GND
80
VIN = 3V, IOUT = 60mA, VOUT = 5V
60
VIN = 3.3V, IOUT = 60mA, VOUT = 5.5V
70
Ripple Voltage (Note1)
VRIPPLE
60
µA
mA
mA
mVp-p
Efficiency
η
IOUT = 15mA, VIN = 2.7V, VOUT = 5V
90
%
Frequency
fOSC
Oscillator Free Running
1.0
MHz
EN Input Threshold High
VEH
EN Input Threshold Low
VEL
EN Input Current
IEN
1.3
V
VEN = VIN, VEN = GND
Over Temperature Shutdown
OTS
160
Over Temperature Hysterisis
OTH
20
0.6
V
0.1
µA
o
C
Note 1: Effective series resistance (ESR) of capacitors is < 0.1Ω.
5
Rev.A.02
AME, Inc.
AME7739
Step-Up / Step-Down
60mA Regulated Charge Pump
n Detailed Description
n Efficiency
The AME7739 regulated charge pump provides a regulated
input voltages ranging from less than the output to greater
than the input. This is accomplshed by automatic mode switching within the device.
The efficiency of the charge pump regulator varies
with the output voltage version, the applied input voltage, the load current, and the internal operation mode
of the device.
n Short Circuit and Thermal
Protection
The AME7739 has a thermal protection and shutdown circuit that continuously monitors the IC junction temperature.
If the thermal protection circuit senses the die temperature
exceeding approximately 160OC, the thermal shutdown will
disable the charge pump switching cycle operation, The thermal limit system has 20OC of system hysteresis before the
charge pump can reset. Once the over current event is removed from the output and the junction temperature drops
below 140OC, the charge pump will the become active again.
The thermal protection system will cycle on and off if an output short circuit condition persists. This will allow the
AME7739 to operate indefinitely a short circuit condition without damage to the device.
n Shutdown Mode
A control pin EN on the regulator can be used to place the
device into an energy-saving shutdown mode. In this mode,
the output is disconnected from the input as long as VIN is
greater than or equal to minimum VIN and input quiescent
current is reduced to 1µA maximum.
The approximate efficiency is given by:
5.5V, 5V Version (VIN<= VOUT)
Efficiency (%) = VOUT / 2VIN . 100%
Others Version (VIN> VOUT)
Efficiency (%) = VOUT / VIN . 100%
n Layout
Large ripple currents flow in the VIN and VOUT traces.
To minimized both input and output ripple, keep the
capacitors as close as possible to the regulator using
short, direct circuit traces.
The trace lengths from the input and output capacitors have been kept as short as possible. A star ground
system has been implemented, with GND pin as the
center of the star. No ground plane is provided in other
layers, as this will provide capacitive coupling for noise
spikes.
n Capacitor Selection
For minimum output voltage ripple, the output capacitor
COUT should be a ceramic, surface-mount type. Tantalum capacitors generally have a higher Effective Series Resistance
(ESR) and may contribute to higher output voltage ripple.
Leaded capacitors also increase ripple due to the higher inductance of the package itself. To achieve best operation with
low input voltage and high load current, the input and pump
capacitors (CIN, CPUMP respectively) should also be surfacemount ceramic types. In all cases, X7R dielectric is recommended.
With light loads or higher input voltage, a smaller 0.1µF
pump capacitor (CPUMP) and smaller 1µF input and output capacitor (CIN and COUT, respectively) can be used. To minimize
output voltage ripple, increase the output capacitor, COUT, to
10µF or larger.
6
REV. A.02
AME, Inc.
Step-Up / Step-Down
60mA Regulated Charge Pump
AME7739
Efficiency vs VIN
Output Voltage vs Temperature
100
1.5
Efficiency (%)
Output Voltage Change (%)
VOUT=5.0V
90
80
70
60
50
40
30
1.5
2
2.5
3
3.5
4
4.5
5
1
0.5
0
-0.5
-1
-1.5
-2
-40
5.5
-20
0
VIN (V)
200
100
180
90
160
60
80
100
120
140
VIN=2.7V
80
140
Efficiency (%)
Short Circuit Current (mA)
40
Efficiency vs Load Current
Short Circuit Current vs VIN
120
100
80
60
VIN=3.3V
70
60
50
VIN=5V
40
30
40
20
20
0
1.5
20
Junction Temperature(oC)
2
2.5
3
3.5
4
4.5
5
VOUT=5.0V
10
0.1
5.5
1
10
100
Load Current (mA)
VIN (V)
Shutdown Current vs Temperature
Supply Current vs Temperature
(No Load)
100
100
90
Shutdown Current (nA)
Supply Current (µA)
80
60
40
20
80
70
60
50
40
30
20
10
0
-40
-20
0
25
Temperature
7
55
(oC)
85
125
0
-40
-20
0
25
55
85
125
Temperature (oC)
Rev.A.02
AME, Inc.
Step-Up / Step-Down
60mA Regulated Charge Pump
AME7739
Output Ripple Voltage vs VIN
Output Ripple Voltage vs VIN
160
VOUT=5V
IOUT=15mA
140
120
Output Ripple (mVp-p)
Output Ripple (mVp-p)
140
160
COUT=2.2µF(X7R)
100
80
60
40
20
0
2.7
COUT=10µF(X7R)
3
3.2
3.5
4
4.5
5
VOUT=5V
IOUT=60mA
120
COUT=2.2µF(X7R)
100
80
60
40
20
5.5
0
3
COUT=10µF(X7R)
3.2
3.5
VIN (V)
4
4.5
5
5.5
VIN(V)
Load Transient Response
Input Current at Turn-On
VOUT
50mV/div
100mA/div
IIN
VOUT
ILOAD
VOUT=5V
VIN=3V
IOUT=60mA
BW=20MHz
2V/div
10mA/div
VOUT =5.0V
BW=20MHz
Time (10µs/div)
Time (200µs/div)
Line Transient Response
VOUT =5.0V, IOUT=60mA
BW=20MHz
4.5V
3.5V
2V/div
VIN
50mV/div
VOUT
Time (40µs/div)
8
REV. A.02
AME, Inc.
Step-Up / Step-Down
60mA Regulated Charge Pump
AME7739
n Date Code Rule
Marking
Date Code
Year
A
A
A
W
W
xxx0
A
A
A
W
W
xxx1
A
A
A
W
W
xxx2
A
A
A
W
W
xxx3
A
A
A
W
W
xxx4
A
A
A
W
W
xxx5
A
A
A
W
W
xxx6
A
A
A
W
W
xxx7
A
A
A
W
W
xxx8
A
A
A
W
W
xxx9
n Tape & Reel Dimension
SOT-26
P
W
AME
AME
PIN 1
Carrier Tape, Number of Components Per Reel and Reel Size
9
Package
Carrier Width (W)
Pitch (P)
Part Per Full Reel
Reel Size
SOT-26
8.0±0.1 mm
4.0±0.1 mm
3000pcs
180±1 mm
Rev.A.02
AME, Inc.
Step-Up / Step-Down
60mA Regulated Charge Pump
AME7739
n Package Dimension
SOT-26
Top View
Side View
SYMBOLS
D
e
MAX
INCHES
MIN
MAX
L
MIN
E
A
H
MILLIMETERS
θ1
0.00
0.15
0.0000
0.0059
b
0.30
0.55
0.0118
0.0217
D
2.70
3.10
0.1063
0.1220
E
1.40
1.80
0.0551
0.0709
H
L
Front View
θ1
S1
1.90 BSC
2.60
3.00
0.37REF
0o
10 o
0.95REF
0.0748 BSC
0.10236 0.11811
0.0146REF
0o
10 o
0.0374REF
A1
A
0.0472REF
A1
e
S1
1.20REF
b
10
REV. A.02
www.ame.com.tw
E-Mail: sales@ame.com.tw
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
U.S.A. (Subsidiary)
AME, Inc.
Analog Microelectronics, Inc.
2F, 302 Rui-Guang Road, Nei-Hu District
3100 De La Cruz Blvd., Suite 201
Taipei 114, Taiwan, R.O.C.
Tel: 886 2 2627-8687
Santa Clara, CA. 95054-2438
Tel : (408) 988-2388
Fax: 886 2 2659-2989
Fax: (408) 988-2489