MIC37151-3.3BR Micrel Inc, MIC37151-3.3BR Datasheet

IC REG LDO 1.5A 3.3V SPAK-5

MIC37151-3.3BR

Manufacturer Part Number
MIC37151-3.3BR
Description
IC REG LDO 1.5A 3.3V SPAK-5
Manufacturer
Micrel Inc
Datasheet

Specifications of MIC37151-3.3BR

Regulator Topology
Positive Fixed
Voltage - Output
3.3V
Voltage - Input
Up to 6V
Number Of Regulators
1
Current - Output
1.5A (Min)
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
SPAK-5
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Voltage - Dropout (typical)
-
Current - Limit (min)
-
General Description
The Micrel MIC37150/51/52/53 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 (500mV over
temperature), and low ground current.
The MIC37150/51/52/53 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.). It is available in fixed and adjustable
output voltages. Fixed voltages include 1.5V, 1.65V, 1.8V,
2.5V and 3.3V. The adjustable version is capable of
supplying output voltages from 1.24V to 5.5V.
Features of the MIC37150/51/52/53 LDO include thermal
and current limit protection, and reverse current and
reverse battery protection. Logic enable and error flag pins
are available.
Junction temperature range of the MIC37150/51/52/53 is
from –40°C to +125°C.
For applications requiring input voltage greater than 6.0V,
see MIC3910x, MIC3915x, MIC3930x, and MIC3950x
LDOs.
Data sheets and support documentation can be found on
Micrel’s web site at www.micrel.com.
Typical Application
V
IN
Super ßeta PNP is a trademark of Micrel, Inc.
October 2007
= 3.0V
C
IN
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (
Fixed 2.5V Regulator with Error Flag
VIN
VEN
MIC37151
GND
VOUT
FLG
100k
C
47µF, Ceramic
OUT
V
OUT
= 2.5V
Features
• 1.5A minimum guaranteed output current
• 500mV maximum dropout voltage over temperature
• Stable with ceramic or tantalum capacitor
• Wide input voltage range
• ±1.0% initial output tolerance
• Fixed and adjustable output voltages
• Excellent line and load regulation specifications
• Logic controlled shutdown
• Thermal shutdown and current limit protection
• Reverse-leakage protection
• Low profile 3 or 5-pin S-Pak packages or 8-pin e-Pad
Applications
• LDO linear regulator for low-voltage digital IC
• PC add-in cards
• High efficiency linear power supplies
• SMPS post regulator
• Battery charger
408
V
IN
C
SOIC
1.5A, Low Voltage µCap LDO Regulator
) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
IN
Ideal for 3.0V to 2.5V conversion
Ideal for 2.5V to 1.8V, 1.65V, or 1.5V conversion
VIN: 2.25V to 6.0V
MIC37150—3-pin fixed voltages
MIC37151—5-pin S-Pak or 8-pin e-Pad SOIC
fixed voltages with flag
MIC37152—5-pin adjustable voltage
MIC37153—8-pin adjustable voltage with flag
MIC37150/51/52/53
VIN
VEN
MIC37152
Adjustable Regulator
GND
VOUT
ADJ
R1
R2
M9999-101907
1.3V
C
47µF, Ceramic
OUT

Related parts for MIC37151-3.3BR

MIC37151-3.3BR Summary of contents

Page 1

... MIC37150/51/52/53 Ideal for 3.0V to 2.5V conversion Ideal for 2.5V to 1.8V, 1.65V, or 1.5V conversion VIN: 2.25V to 6.0V MIC37150—3-pin fixed voltages MIC37151—5-pin S-Pak or 8-pin e-Pad SOIC fixed voltages with flag MIC37152—5-pin adjustable voltage MIC37153—8-pin adjustable voltage with flag MIC37152 ...

Page 2

... MIC37150-2.5BR MIC37150-2.5WR* MIC37150-3.3BR MIC37150-3.3WR* MIC37151-1.5BR MIC37151-1.5WR* MIC37151-1.5YME* MIC37151-1.65BR MIC37151-1.65WR* MIC37151-1.8YME* MIC37151-1.8BR MIC37151-1.8WR* MIC37151-2.5YME** MIC37151-2.5BR MIC37151-2.5WR* MIC37151-3.3BR MIC37151-3.3WR* MIC37152BR MIC37152WR* MIC37152YM MIC37153YME** * RoHS compliant with ‘high-melting solder’ exemption. ** Contact factory for availablity. October 2007 Output Voltage Current Pb-free 1.5A 1.5V 1.5A 1 ...

Page 3

Micrel, Inc. Pin Configuration S-PAK-3 ( VIN 2 VOUT 3 ADJ 4 SOIC-8 (M) Pin Description Pin Number Pin Number Pin Number S-PAK-3 S-PAK-5 SOIC-8 – – ...

Page 4

Micrel, Inc. Absolute Maximum Ratings Supply Voltage (V ) ......................................................6.5V IN Enable Input Voltage (V )............................................6.5V EN Power Dissipation .....................................Internally Limited Junction Temperature .........................–40°C ≤ T Storage Temperature (T ) ...................–65°C ≤ Lead Temperature (soldering, 5sec.)......................... 260°C EDS ...

Page 5

Micrel, Inc. Notes: 1. Exceeding the absolute maximum rating may damage the device. 2. The device is not guaranteed to function outside its operating rating. 3. Devices are ESD sensitive. Handling precautions recommended – ...

Page 6

Micrel, Inc. Typical Characteristics Power Supply Rejection Ratio 3. 2.5V OUT 1.5A 20 OUT C = 10µF OUT 1E-2 1E-1 1E+0 1E+1 1E+2 1E+3 0.01 ...

Page 7

Micrel, Inc. Error Flag Pull-Up Resistor FLAG HIGH (OK FLAG LOW 1 (FAULT) 0 0.01 0 100 100010000 RESISTANCE (k ) October 2007 Flag-Low Voltage vs. Temperature 250 200 ...

Page 8

Micrel, Inc. Functional Characteristics October 2007 Line Transient Response V = 2.5V OUT C = 10µF OUT 5V 3.3V TIME (250 µs/div.) 8 MIC37150/51/52/53 M9999-101907 ...

Page 9

... For values of output capacitance lower than 47µF, the recommended ESR range is 200mΩ to 2Ω. The minimum value of output capacitance recommended for the MIC37151 is 10µF. For 47µF or greater, the ESR range recommended is less than 1Ω. Ultra-low ESR ceramic capacitors are recommended for output capacitance of 47µ ...

Page 10

... A 10mA minimum load current is necessary for proper operation. Error Flag The MIC37151 and MIC37153 feature an error flag circuit that monitors the output voltage and signals an error condition when the voltage 5% below the nominal output voltage. The error fl open-collector output that can sink 10mA during a fault condition ...

Page 11

Micrel, Inc. Package Information October 2007 3-Pin S-PAK (R) 5-Pin S-PAK (R) 11 MIC37150/51/52/53 M9999-101907 ...

Page 12

Micrel, Inc. October 2007 8-Pin SOIC (M) 8-Pin SOIC (ME) 12 MIC37150/51/52/53 M9999-101907 ...

Page 13

Micrel, Inc. MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA TEL +1 (408) 944-0800 FAX +1 (408) 474-1000 WEB http:/www.micrel.com The information furnished by Micrel in this data sheet is believed to be accurate and reliable. However, no ...

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