Micrel, Inc.
MIC38300
Pin Description (Continued)
Pin Number
MIC38300HYHL
12, 13
14, 15
16, 17
18
19, 20, 21
Pin Name Pin Name
LDOOUT
LDOIN
PVIN
EN
PGND
LDO Output: Output of voltage regulator. Place capacitor to ground to bypass the output
voltage. Nominal bypass capacitor is 10µF.
LDO Input: Connect to SW output. Requires a bypass capacitor to ground. Nominal
bypass capacitor is 10µF.
Input Supply Voltage (Input): Requires bypass capacitor to GND. Nominal bypass
capacitor is 10µF.
Enable (Input): Logic low will shut down the device, reducing the quiescent current to less
than 50µA. This pin can also be used as an undervoltage lockout function by connecting a
resistor divider from EN/UVLO pin to VIN and GND. It should be not left open.
Power Ground.
April 10, 2013
3
Revision 5.0