MIC37150-3.3BR Micrel Inc, MIC37150-3.3BR Datasheet

IC REG LDO 1.5A 3.3V S-PAK-3

MIC37150-3.3BR

Manufacturer Part Number
MIC37150-3.3BR
Description
IC REG LDO 1.5A 3.3V S-PAK-3
Manufacturer
Micrel Inc
Datasheet

Specifications of MIC37150-3.3BR

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-3
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 MIC37150-3.3BR

MIC37150-3.3BR Summary of contents

Page 1

... 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 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 ...

Page 2

... Micrel, Inc. Ordering Information Part Number Standard RoHS Compliant* / MIC37150-1.5BR MIC37150-1.5WR* MIC37150-1.65BR MIC37150-1.65WR* MIC37150-1.8BR MIC37150-1.8WR* 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. ...

Page 3

... NC Pin Number Pin Name e-Pad SOIC VIN 1 GND 6, 7 (Fixed) 3 VOUT 6 (Adj) – 8 FLG 4 7 ADJ – MIC37150/51/52/53 5 FLG/ADJ 4 VOUT 3 GND 2 VIN 1 EN S-PAK-5 ( FLG 2 7 VOUT/ADJ 3 6 VOUT e-Pad SOIC-8 (ME) Pin Name Enable (Input): CMOS compatible input. Logic high = enable, logic low = shutdown. ...

Page 4

... SOIC-8 (θ )............................................10°C/W JC < +125°C, unless otherwise noted. J Min Typ –1 ≤ 6V –2 0.06 0.2 17 1.0 2.25 170 2. 210 93 2 1.228 1.240 1.215 20 40 0.1 MIC37150/51/52/53 ≤ +125°C J Max Units + 0 350 mV 500 mA 30 µA A 4.0 µs 500 V V 0.8 2 µ ...

Page 5

... Specifications are for a 200mA load pulse at V October 2007 , depends upon the printed circuit layout. See “Applications Information.” . OUT ≤ 6.0V, 10mA ≤ I ≤ 1.5A MAX = 6V for t = 10ms MIC37150/51/52/ +1V. For output voltages below 1.75V, dropout voltage IN OUT M9999-101907 ...

Page 6

... TEMPERATURE ( °C) October 2007 Ground Current vs. Supply Voltage 2.5V 40 OUT 1500mA 15 10 1000mA 5 750mA SUPPLY VOLTAGE (V) 6 MIC37150/51/52/53 Ground Current vs. Temperature 0 2.5V 0.445 OUT I = 10mA 0.44 LOAD 0.435 0.43 0.4 0.42 0.415 0.41 0.405 0.4 -40 - 100 120 TEMPERATURE ( °C) M9999-101907 ...

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 250 200 150 100 2.25V 22k PULL-UP 0 -40 - 100 120 TEMPERATURE ( °C) 7 MIC37150/51/52/53 M9999-101907 ...

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

... Refer to “Application Note 9” for further details and examples on thermal design and heat sink applications. Output Capacitor The MIC37150/51/52/53 requires an output capacitor for stable MIC37150/51/52/53 can operate with ceramic output saturation voltage. CE capacitors as long as the amount of capacitance is 47µ ...

Page 10

... NPN-based regulators are already operating in dropout, with typical dropout requirements of 1.2V or greater. To convert down to 2.5V without operating in dropout, NPN-based regulators require an input voltage of 3.7V at the very least. The MIC37150/51/52/53 regulator will provide excellent performance with an input as low as 3.0V or 2.25V, respectively. This ...

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

... A 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 2007 indemnify Micrel for any damages resulting from such use or sale. © 2003 Micrel, Incorporated. 13 MIC37150/51/52/53 M9999-101907 ...

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