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Boost Converter. AME5131 Datasheet

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Boost Converter. AME5131 Datasheet







AME5131 Converter. Datasheet pdf. Equivalent




AME5131 Converter. Datasheet pdf. Equivalent





Part

AME5131

Description

Low Power DC/DC Boost Converter

Manufacture

Analog Microelectronics

Datasheet
Download AME5131 Datasheet


Analog Microelectronics AME5131

AME5131; www.DataSheet4U.com AME, Inc. AME5131 n General Description The AME5131 is a h igh-frequency boost converter dedicated for LCD bias supply and white LED appl ications for cellular phone backlightin g, PDAs, and other hand-held devices. T he part can also be used to generate st andard 3.3 V/5 V to 12 V power conversi ons. The AME5131 has an internal 400mA switch current lim.


Analog Microelectronics AME5131

it, offering lower output voltage ripple . The 32µA low quiescent current toget her with an optimized control scheme, a llows device operation at high efficien cies and maintains long battery lifetim e. AME5131 uses SOT-25 package and give s a small size solution. Low Power DC/ DC Boost Converter n Function Block Dia gram On / Off Time Controller UVP VIN SW _ FB + Boost .


Analog Microelectronics AME5131

Controller Driver Bandgap + _ GND Sof t Start Enable EN n Features l 0.6Ω Internal Switch l 1.8V to 5.5V Input R ange l Adjustable Output Voltage Up to 28V l Input Under Voltage Protection l 32µA Typical No Load Quiescent Current l 1µA Shutdown Current l SOT-25 Packa ge l All AME's Lead Free Products Meet RoHS Standards CIN 4.7£gF 4 EN VIN 1.8 V-5.5 V 5 V IN 1 R1 2..



Part

AME5131

Description

Low Power DC/DC Boost Converter

Manufacture

Analog Microelectronics

Datasheet
Download AME5131 Datasheet




 AME5131
www.DataSheet4U.com
AME, Inc.
AME5131
n General Description
The AME5131 is a high-frequency boost converter dedi-
cated for LCD bias supply and white LED applications for
cellular phone backlighting, PDAs, and other hand-held
devices. The part can also be used to generate standard
3.3 V/5 V to 12 V power conversions.
The AME5131 has an internal 400mA switch current
limit, offering lower output voltage ripple. The 32µA low
quiescent current together with an optimized control
scheme, allows device operation at high efficiencies and
maintains long battery lifetime. AME5131 uses SOT-25
package and gives a small size solution.
n Features
l 0.6Internal Switch
l 1.8V to 5.5V Input Range
l Adjustable Output Voltage Up to 28V
l Input Under Voltage Protection
l 32µA Typical No Load Quiescent Current
l 1µA Shutdown Current
l SOT-25 Package
l All AME's Lead Free Products Meet RoHS
Standards
n Applications
l White LED Back-Lighting
l Hand-held Devices
l Digital Cameras
l Portable Applications
l Internet Audio Player
l LCD Bias Power
l Standard 3.3 V/5 V to 12 V Conversions
Low Power
DC/DC Boost Converter
n Function Block Diagram
UVP
VIN
On / Off Time
Controller
FB
_
+
Boost
Controller
Driver
Bandgap
Enable
EN
+
_
Soft Start
SW
GND
n Typical Application
VIN
1.8 V-5.5 V
L1
10 H
4.C7 IN F
5 VIN
SW 1
AME5131
3
FB
4 EN GND 2
D1
R1
2.1M
R2
150K
VOUT
VIN ~28 V
CF F
22PF
1COF
1





 AME5131
AME, Inc.
AME5131
n Pin Configuration
SOT-25
Top View
54
AME5131
1 23
AME5131AEEV
1. SW
2. GND
3. FB
4. EN
5. VIN
* Die Attach:
Conductive Epoxy
Low Power
DC/DC Boost Converter
n Pin Description
Pin Number Pin Name
1 SW
2 GND
3 FB
4 EN
5 VIN
Pin Description
This is the switch pin and is connected to the drain of the internal
NMOS power switch. Minimize the metal trace area connected to this
pin to minimize EMI.
Ground Pin.
Feedback Input Pin.
Connect this pin to the external voltage divider to program the desired
output voltage.
Enable Control Input Pin. (Active High)
Input Supply Pin.
Place bypass capacitor as close to VIN as possible.
2





 AME5131
AME, Inc.
AME5131
n Ordering Information
AME5131 x x x x xxx x
Low Power
DC/DC Boost Converter
Special Feature
Output Voltage
Number of Pins
Package Type
Operating Ambient Temperature Range
Pin Configuration
Pin
Configuration
Operating Ambient
Number
Temperature Range Package Type of Output Voltage
Pins
Special Feature
A 1. SW
(SOT-25) 2. GND
3. FB
4. EN
5. VIN
E: -40OC to +85OC E: SOT-2X
V: 5
ADJ: Adjustable Z: Lead free
n Ordering Information
Part Number
Marking* Output Voltage Package
AME5131AEEVADJZ
BEFww
ADJ SOT-25
Operating Ambient
Temperture Range
-40OC to 85OC
Note: ww represents the date code and pls refer to Date Code Rule page on Package Dimension.
* A line on top of the first letter represents lead free plating such as BEFww.
Please consult AME sales office or authorized Rep./Distributor for the availability of package type.
3



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