MIC5209 Datasheet, PDF (2/13 Pages) Micrel Semiconductor – 500mA Low-Noise LDO Regulator

MIC5209
Pin Configuration
GND
TAB
Micrel
EN 1
IN 2
OUT 3
BYP 4
8 GND
7 GND
6 GND
5 GND
MIC5209-x.xBM
SO-8
Fixed Voltages
EN 1
IN 2
OUT 3
ADJ 4
8 GND
7 GND
6 GND
5 GND
MIC5209BM
SO-8
Adjustable Voltage
1
2
3
IN GND OUT
MIC5209-x.xBS
SOT-223
Fixed Voltages
5 BYP
4 OUT
3 GND
2 IN
1 EN
MIC5209-x.xBU
TO-263-5
Fixed Voltages
5 ADJ
4 OUT
3 GND
2 IN
1 EN
MIC5209BU
TO-263-5
Adjustable Voltage
Pin Description
Pin No.
SOT-223
1
2, TAB
Pin No.
SO-8
2
5–8
Pin No.
TO-263-5
2
3
3
3
4
1
1
4 (fixed) 5 (fixed)
4 (adj.) 5 (adj.)
Pin Name
IN
GND
OUT
EN
BYP
ADJ
Pin Function
Supply Input
Ground: SOT-223 pin 2 and TAB are internally connected. SO-8 pins 5
through 8 are internally connected.
Regulator Output
Enable (Input): CMOS compatible control input. Logic high = enable; logic
low or open = shutdown.
Reference Bypass: Connect external 470pF capacitor to GND to reduce
output noise. May be left open. For 1.8V or 2.5V operation, see “Applica-
tions Information.”
Adjust (Input): Feedback input. Connect to resistive voltage-divider network.
MIC5209
2
August 2, 2000