MIC23163 Datasheet, PDF (2/19 Pages) Micrel Semiconductor – 4MHz, 2A, 100% Duty Cycle Buck Regulator with HyperLight Load® and Power Good

Micrel, Inc.
MIC23163/4
Ordering Information
Part Number
Marking
Code
Output
Voltage
Auto
Discharge
Junction Temperature Range
MIC23163YMT
QAQ
ADJ
No
–40°C to +125°C
MIC23164YMT
KQA
ADJ
Yes
–40°C to +125°C
Note:
1. DFN is a GREEN, RoHS-compliant package. Mold compound is Halogen Free.
2. DFN ▲ = Pin 1 identifier.
Package^{(1, 2)}
10-Pin 2mm × 2mm Thin DFN
10-Pin 2mm × 2mm Thin DFN
Pin Configuration
2mm × 2mm DFN (MT)
Adjustable Output Voltage
(Top View)
Pin Description
Pin Number
Pin Name
1
SW
2
EN
3
FB
4
NC
5
PG
6
SS
7
AGND
8
AVIN
9
PVIN
10
PGND
EP
ePad
Pin Function
Switch (Output): Internal power MOSFET output switches. Disable pull down 180Ω
(MIC23164 only).
Enable (Input): Logic high enables operation of the regulator. Logic low will shut down the
device. Do not leave floating.
Feedback: Connect a resistor divider from the output to ground to set the output voltage.
Not Internally Connected.
Power Good: Open drain output for the power good indicator. Use a pull-up resistor from this pin
to a voltage source to detect a power good condition.
Soft Start: Place a capacitor from this pin to ground to program the soft start time. Do not leave
floating, 100pF minimum CSS is required.
Analog Ground: Connect to central ground point where all high-current paths meet (CIN, COUT,
PGND) for best operation.
Analog Input Voltage: Connect a capacitor to ground to decouple the noise.
Power Input Voltage: Connect a capacitor to PGND to decouple the noise.
Power Ground.
Exposed Pad. Connect to GND.
July 29, 2013
2
Revision 2.0