AME5143 Datasheet, PDF (4/15 Pages) Analog Microelectronics – 1.4MHz Boost Converter With 30V Internal FET Switch

AME
AME5143
n Pin Description
AME5143AE2A MSOP-8/PP
Pin Number Pin Name
1
IN
2
EN
3
GND
4
FB
5,6
SW
7,8
CS
1.4MHz Boost Converter with
30V Internal FET Switch
Pin Description
Analog and Power input. Input Supply Pin.
Place bypass capacitor as close to V_IN as possible.
Enable, active high.
The enable pin is an active high control. Tie this pin above 2V to enable the
device. Tie this pin below 0.4V to turn off the device.
Ground. Tie directly to ground plane.
Output voltage feedback input.
Set the output voltage by selecting values for R1 and R2 using:
R1 =
R
2

V _out
1.23V
− 1_{}
Connect the ground of the feedback network to a GND plane.
Power Switch input.
This is the drain of the internal NMOS power switch.
Minimize the metal trace area connected to this pin to minimize EMI.
Current sense pins
4
Rev.A.01