ml4890cs-3 Microsemi Corporation, ml4890cs-3 Datasheet - Page 2

• Manufacturer Part Number: ml4890cs-3
• Description: High Efficiency, Ripple Boost Regulator
• Manufacturer: Microsemi Corporation

ML4890
PIN CONNECTION
PIN DESCRIPTION
2
NO.
PIN
1
2
3
4
V
V
GND
V
NAME
IN
REF
OUT
FUNCTION
Battery input voltage
200mV reference output
Analog signal ground
LDO linear regulator output
V
GND
V
OUT
V
REF
IN
8-Pin SOIC (S08)
ML4890-5/-3/-T
1
2
3
4
TOP VIEW
8
7
6
5
NO.
PIN
5
6
7
8
PWR GND
SHDN
V
V
V
V
SHDN
PWR GND Return for the NMOS boost transistor
L
BOOST
NAME
BOOST
L
FUNCTION
Boost regulator output for connection
of an output filter capacitor
Boost inductor connection
Pulling this pin high shuts down the
regulator, isolating the load from the
input