AME5296 Datasheet, PDF (1/14 Pages) Analog Microelectronics – Step Down DC/DC Converter

AME
AME5296
2A, 18V, 500KHz Synchronous
Step Down DC/DC Converter
n General Description
The AME5296 is a high frequency synchronous
stepdown DC-DC cnverter with built internal power
MOSFETs. That provides wide 4.5V to 18V input voltage
range and 2A continuous load current capability. The
AME5296 has synchronous mode operation for higher
efficiency over output current load range.
The AME5296 is current mode control scheme which
provides fast transient response. Internal compensation
function.
n Features
l Wide 4.5V to 18V Operating Input Range
l 100mΩ/40mΩ Low R_DS(ON) internal Power
MOSFETs
l Proprietary Switching Loss Reduction Techn
-ique
l High Efficiency Synchronous Mode Operation
l Fixed 500KHz Switching Frequency
l External Programmable Soft Start
l OCP and Hiccup
l Thermal Shutdown
l Output Adjustable from 0.8V
l RoHS Compliant and Halogen Free
n Typical Application
VIN 4.5-18V
C1
22uF
25V
C3
1uF
C4
22nF
EN
IN
BST
VCC
SW
AME5296
SS
EN
FB
GND
R4
10Ω
C4 0.1uF
L1
4.7uH
R1
40.2K
R3
33K
R2
12.7K
3.3V 2A
VOUT
C2
47uF
n Application
l Notebook Systems and I/O Power
l Digital Set Top Boxes
l LCD Display, TV
l Networking, XDSL Modem
Rev. A.05
1