MIC69151/153
Single Supply V , Low V , Low V ,
IN IN OUT
1.5A LDO
General Description Features
The MIC69151/153 is the 1.5A output current member of
Single input voltage range: V : 1.65V to 5.5V
IN
the MIC69xxx family of high current, low voltage
Maximum dropout (V V ) of 500mV
IN OUT
regulators, which support currents of 1A, 1.5A, 3A, and 5A.
over temperature
The MIC69151/153 operates from a single low voltage
Adjustable output voltage down to 0.5V
supply, yet offers high precision and ultra-low dropout of
Stable with 10F ceramic output capacitor
500mV under worst case conditions.
Excellent line and load regulation specifications
The MIC69151/153 operates from an input voltage of
1.65V to 5.5V. It is designed to drive digital circuits Logic controlled shutdown
requiring low voltage at high currents (i.e. PLDs, DSP,
Thermal shutdown and current limit protection
microcontroller, etc.). These regulators are available in
10-Pin 3mm x 3mm MLF package
adjustable and fixed output voltages including 1.8V. The
EPAD SOIC-8 package
adjustable version can support output voltages down to
Available 40C to +125C junction temperature
0.5V.
The Cap design of the MIC69151/153 is optimized for
stability with low value low-ESR ceramic output capacitors.
Applications
Features of the MIC69151/153 include thermal shutdown
Point-of-load applications
and current limit protection. Logic enable and error flag
Industrial power
pins are also available.
Sensitive RF applications
The MIC69151/153 is offered in a tiny 10-pin 3mm x 3mm
MLF package and an EPAD SOIC-8 package. Both
packages have an operating temperature range of
40C to +125C.
Data sheets and support documentation can be found on
Micrels web site at: www.micrel.com.
___________________________________________________________________________________________________________
Typical Application
Fixed 1.8V Regulator w/Flag Error Adjustable Regulator
Super eta PNP is a registered trademark of Micrel, Inc.
Micrel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1 (408) 944-0800 fax + 1 (408) 474-1000 Micrel, Inc. MIC69151/153
Ordering Information
Part Number Nominal Junction Package Lead Finish
Output Voltage Temperature Range
MIC69151-1.8YML 1.8V 40 to +125C 10-Pin 3x3 MLF Pb-Free
MIC69151-1.8YME 1.8V 40 to +125C 8-Pin EPAD SOIC Pb Free
MIC69153YME Adj. 40 to +125C 8-Pin EPAD SOIC Pb Free
MIC69153YML Adj. 40 to +125C 10-Pin 3x3 MLF Pb-Free
Pin Configuration
FLG 1 10 ADJ/SNS
GND 1 8 FLG
NC 2 9 VOUT
EN 2 7 SNS/ADJ
GND 3 8 NC
VIN 3 6 VOUT
NC 4 7 VIN
VIN 4 5 VOUT
NC 5 6 EN
10-Pin 3mm x 3mm MLF (ML) 8-Pin EPAD SOIC (ME)
Pin Description
Pin Number Pin Number Pin Name Pin Function
MLF-10 EPAD SOIC-8
1 8 FLG Error Flag (Output): Open collector output. Active low indicates an output fault
condition.
2, 4, 5, 8 NC Not internally connected.
3 (EP) 1 GND Ground (exposed pad is recommended to connect to ground on MLF ).
6 2 EN Enable (Input): CMOS compatible input. Logic high = enable,
logic low = shutdown. Do not leave pin floating.
7 3, 4 VIN Input voltage which supplies current to the output power device.
9 5, 6 VOUT Regulator Output.
10 (Adj) 7 (Adj) ADJ Adjustable regulator feedback input. Connect to resistor voltage divider.
10 (Fixed) 7 (Fixed) SNS Sense pin, connect to output for improved voltage regulation.
M9999-071210-D
July 2010 2