AME5244 Datasheet, PDF (1/15 Pages) Analog Microelectronics – 40V CC/CV Buck Converter

AME
AME5244
40V CC/CV Buck Converter
n General Description
n Typical Application
The AME5244 is a specific 40V HV buck converter that
operates in either CV/CC mode supports an output volt-
age range of 0.8V to 12V and support constant output
current at 200KHz switching frequency.
Protection features include under voltage protection,
over voltage protection, current limit, thermal shutdown,
and short circuit protection. The device is available in
SOP-8/PP package with exposed pad for low thermal
resistance.
n Features
R4 ^C3
10Ω ^22nF
VIN=
8V~40V
C1
47uF
C4 3.3nF
C5
Optional
R3 8.2K
BS
IN
SW
AME5244
FB
COMP
GND
L1
47uH
D1
SK ^R1
34 ^110K
R2
20K
VBUS
C2
470uF
GND
l 40V Maximum Rating for Input Power
l 200KHz Switching Frequency
l CC/CV Mode Function
l Internal Soft Start
l UVP, Input/Output OVP, OTP, SCP
l Available in SOP-8/PP Package
l RoHS Compliant and Halogen Free
n Application
AME5244-AZAADJ-24
n Functional Block Diagram
IN
Oscillator
EMI
Control
BS
l Car Charger
l Wall Adapter
Vref &
S/D
Control
PWM
Controller
0.8V
FB
SW
CC
Control
COMP
GND
Rev. A.03
1