mic35152 Micrel Semiconductor, mic35152 Datasheet

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mic35152

Manufacturer Part Number
mic35152
Description
1.5a, Low Voltage ?cap Ldo Regulator
Manufacturer
Micrel Semiconductor
Datasheet
General Description
The MIC35152 is a 1.5A low-dropout linear voltage
regulator that provides a low voltage, high current output
with a minimum of external components. It offers high
precision, ultra-low dropout (600mV over temperature),
and low ground current.
The MIC35152 operates from an input of 2.25V to 6.0V. It
is designed to drive digital circuits requiring low voltage at
high currents (i.e., PLDs, DSPs, micro-controllers, etc.),
providing an adjustable output voltage from 1.24V to 5.4V.
Features of the MIC35152 LDO include current limiting
and thermal protection, and reverse current and reverse
battery protection. Also logic (active-HIGH) enable pin is
included. The MIC35152 is available in a 5-pin power
D-Pak package (TO-252) with and operating temperature
range of –40°C to +125°C.
Data sheets and support documentation can be found on
Micrel’s web site at www.micrel.com.
Typical Application**
Super ßeta PNP is a registered trademark of Micrel, Inc.
October 2009
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (
Adjustable Regulator Application
(*See Minimum Load Curren Section)
Features
• 1.5A minimum guaranteed output current
• 600mV maximum dropout voltage over temperature
• Stable with ceramic or tantalum capacitor
• Wide input voltage range
• ±1.0% initial output tolerance
• Excellent line and load regulation specifications
• Logic controlled shutdown
• Thermal shutdown and current limit protection
• Reverse-leakage protection
• –40°C to +125°C junction temperature
• Power D-Pak package (TO-252)
Applications
• LDO linear regulator for low-voltage digital IC
• PC add-in cards
• High efficiency linear power supplies
• SMPS post regulator
• Battery charger
408
1.5A, Low Voltage µCap LDO Regulator
) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
Ideal for 3.0V to 2.5V conversion
Ideal for 2.5V to 1.8V, 1.65V, or 1.5V conversion
V
IN
: 2.25V to 6.0V
MIC35152
**See Thermal Design Section
M9999-102309-A

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mic35152 Summary of contents

Page 1

... It offers high precision, ultra-low dropout (600mV over temperature), and low ground current. The MIC35152 operates from an input of 2.25V to 6.0V designed to drive digital circuits requiring low voltage at high currents (i.e., PLDs, DSPs, micro-controllers, etc.), providing an adjustable output voltage from 1.24V to 5.4V. ...

Page 2

... OUT to GND (with the divided connection tied to ADJ). A minimum value capacitor must be used to maintain stability. See Applications Information. Adjustable Regulator Feedback Input: Connect to the resistor voltage divider that is placed from OUT to GND in order to set the output voltage. 2 Package –40° to +125°C 5-Pin TO-252 M9999-102309-A MIC35152 ...

Page 3

... J Min Typ 0.06 0.2 225 365 11 1.0 2 1.228 1.240 1.215 +1V. For output voltages below 1.75V, dropout voltage IN OUT MIC35152 ≤ +125°C J Max Units 0 350 mV 600 mA 30 µA A 4.0 µs 150 V V 0.8 2 µA µA ...

Page 4

... Micrel, Inc. Typical Characteristics October 2009 4 MIC35152 M9999-102309-A ...

Page 5

... Micrel, Inc. Functional Characteristics October 2009 5 MIC35152 M9999-102309-A ...

Page 6

... P Output Capacitor The MIC35152 requires an output capacitor for stable operation µCap LDO, the MIC35152 can operate with ceramic output capacitors as long as the amount of capacitance is 47µF or greater. For values of output ) A capacitance lower than 47µ ...

Page 7

... October 2009 dominate and the output voltage rises. A 10mA minimum Enable Input The MIC35152 also features an enable input for on/off control of the device. Its shutdown state draws “zero” current (only microamperes of leakage). The enable input is TTL/CMOS compatible for simple logic interface, but can be connected draws approximately 15µ ...

Page 8

... Purchaser’s use or sale of Micrel Products for use in life support appliances, devices or systems is a Purchaser’s own risk and Purchaser agrees to fully October 2009 5-Pin TO-252 D-PAK (D) indemnify Micrel for any damages resulting from such use or sale. © 2009 Micrel, Incorporated. 8 MIC35152 M9999-102309-A ...

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