MIC23158 Datasheet, PDF (2/20 Pages) Micrel Semiconductor – 3MHz PWM Dual 2A Buck Regulator with HyperLight Load and Power Good

Micrel Inc.
Ordering Information
Part Number
Nominal Output Voltage
VOUT1
VOUT2
Output
Auto
Discharge
Junction Temperature Range
MIC23158YML
ADJ
ADJ
NO
–40°C to +125°C
MIC23159YML
ADJ
ADJ
YES
–40°C to +125°C
Notes:
1. Fixed output voltage options available. Contact Micrel Marketing for details.
2. MLF is a GREEN RoHS-compliant package. Lead finish is NiPdAu. Mold compound is Halogen Free.
MIC23158/9
Package
20-Pin 3mm x 4mm MLF
20-Pin 3mm x 4mm MLF
Pin Configuration
20 19 18 17
VIN1 11
16 FB1
PGND1 2
15 PG1
SW1 3
14 SS1
SW2 4
13 _SS2
PGND2 5
12 PG2
EP
VIN2 6
11 FB2
7 8 9 10
3mm x 4mm MLF (ML) Adjustable Output Voltage
(Top View)
Pin Description
Pin Number
(Adjustable)
1
2
Pin Name
Pin Function
VIN1
PGND1
Power Input Voltage for Regulator 1. Connect a capacitor to ground to decouple noise and switching
transients.
Power Ground for Regulator 1.
3
SW1
Switch (Output): Internal power MOSFET output switches for regulator 1.
4
SW2
Switch (Output): Internal power MOSFET output switches for regulator 2.
5
PGND2 Power Ground for Regulator 2.
6
VIN2
Power Input Voltage for Regulator 2. Connect a capacitor to ground to decouple noise and switching
transients.
7
AVIN2
Analog Input Voltage for Regulator 2. Tie to VIN2 and connect a capacitor to ground to decouple
noise.
November 2012
2
M9999-110812-A