MIC38300_13 Datasheet, PDF (2/15 Pages) Micrel Semiconductor – 3A High-Efficiency Low Dropout Regulator

Micrel, Inc.
Ordering Information
Part Number
Output Current Voltage⁽¹⁾
MIC38300HYHL
3.0A
Adjustable
Note:
1. Other voltages are available. Contact Micrel for details.
Junction Temperature Range
–40°C to +125°C
Pin Configuration
MIC38300
Package
Pb-Free 28-Pin 4mm × 6mm MLF
SWO 1
28 _SW
SWO 2
27 SW
SWO 3
26 SW
SWO 4
25 SW
SWO 5
SW 6
24 SW
23 SW
ePAD 7
22 ePAD
AVIN 8
21 PGND
LPF 9
20 PGND
AGND 10
FB ¹¹
19 PGND
18 EN
12 13 14 15 16 17
28-Pin 4mm × 6mm MLF (ML)
(Top View)
Pin Description
Pin Number
MIC38300HYHL
1, 2, 3, 4, 5
6, 23, 24, 25, 26, 27, 28
7, 22
8
9
10
11
Pin Name Pin Name
SWO
SW
ePAD
AVIN
LPF
AGND
FB
Switch (Output): This is the output of the PFM Switcher.
Switch Node: Attach external resistor from LPF to increase hysteretic frequency.
Exposed heat-sink pad. Connect externally to PGND.
Analog Supply Voltage: Supply for the analog control circuitry. Requires bypass capacitor
to ground. Nominal bypass capacitor is 1µF.
Low Pass Filter: Attach external resistor from SW to increase hysteretic frequency.
Analog Ground.
Feedback: Input to the error amplifier. Connect to the external resistor divider network to
set the output voltage.
April 10, 2013
2
Revision 5.0