MIC37502BU Micrel Inc, MIC37502BU Datasheet

IC REG LDO 5A ADJ VOLT TO-263-5

MIC37502BU

Manufacturer Part Number
MIC37502BU
Description
IC REG LDO 5A ADJ VOLT TO-263-5
Manufacturer
Micrel Inc
Datasheet
1.MIC37501-1.5WR.pdf (11 pages)

Specifications of MIC37502BU

Regulator Topology
Positive Adjustable
Voltage - Output
1.24 ~ 5.5 V
Voltage - Input
2.3 ~ 6 V
Voltage - Dropout (typical)
0.33V @ 5A
Number Of Regulators
1
Current - Limit (min)
5A
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
TO-263-5, D²Pak (5 leads + Tab), TO-263BA
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Current - Output
-
General Description
The MIC37501 and MIC37502 are 5A, low dropout
linear voltage regulator that provide low voltage, high
current outputs with a minimum of external components.
They offer high precision, ultra-low dropout (500mV),
and low ground current.
The MIC37501and MIC37502 operate from an input of
2.3V to 6.0V. They are designed to drive digital circuits
requiring low voltage at high currents (i.e., PLDs, DSPs,
microcontrollers, etc.). They are 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 1.24V to 5.5V.
MIC37501 and MIC37502 LDOs feature thermal and
currentlimit protection and reverse current protection.
Logic enable and error flag pins are available.
Junction temperature range of the MIC37501/02 is from
–40°C to 125°C.
For applications requiring input voltage greater than
6.0V, see MIC3910x, MIC3915x, MIC3930x, and
MIC3950x LDOs.
All support documentation can be found on Micrel’s web
site at www.micrel.com.
Typical Applications
February 2007
Super βeta is a registered trademark of Micrel Inc.
V
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
IN
V
= 3.0V
IN
C
C
IN
IN
Fixed 2.5V Regulator with Error Flag
VIN
VIN
VEN
VIN
VIN
VEN
Adjustable Regulator
MIC37502
MIC37501
GND
GND
VOUT
VOUT
VOUT
VOUT
ADJ
FLG
R1
R2
100k
1.3V
C
100F, Ceramic
OUT
C
100F, Ceramic
OUT
V
OUT
= 2.5V
1
Features
• 5A minimum guaranteed output current
• 500mV maximum dropout voltage
• 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 S-Pak and TO-263 packages
• LDO linear regulator for low-voltage digital IC
• PC add-in cards
• High efficiency linear power supplies
• SMPS post regulator
• Battery charger
Applications
5A, Low Voltage µCap LDO Regulator
– Ideal for 3.0V to 2.5V conversion
– Ideal for 2.5V to 1.8V, 1.65V, or 1.5V
- V
– MIC37501—7 terminal fixed voltage
– MIC37502—5 (TO-263) and 7 (SPAK) terminal
conversion
adjustable voltage
IN
: 2.3V to 6.0V
MIC37501/37502
450
400
350
300
250
200
150
100
50
0
0
2.5V
OUTPUT CURRENT (A)
vs. Output Current
1
OUT
Dropout
2
3
4
5
M9999-020507

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MIC37502BU Summary of contents

Page 1

... GND Adjustable Regulator Super βeta 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 • http://www.micrel.com February 2007 5A, Low Voltage µCap LDO Regulator Features • ...

Page 2

... RoHS Compliant MIC37501-1.5BR MIC37501-1.5WR MIC37501-1.65BR MIC37501-1.65WR MIC37501-1.8BR MIC37501-1.8WR MIC37501-2.5BR MIC37501-2.5WR MIC37501-3.3BR MIC37501-3.3WR MIC37502BR MIC37502WR MIC37502BU MIC37502WU Note: 1. RoHS compliant with “high-melting solder” exemption. 2. Other Voltage available. Contact Micrel for detail. Pin Configuration TO-263-5 Pin Description Pin Number Pin Number TO-263-5 ...

Page 3

Micrel, Inc. Absolute Maximum Ratings Supply Voltage (V ) ................................................. 6.5V IN Enable Input Voltage (V ) ....................................... 6.5V EN Power Dissipation(P ) .......................... Internally Limited D Junction Temperature(T ) ............... –40°C ≤  Storage Temperature(T ) ............... ...

Page 4

Notes: 1. Exceeding the ratings in the “Absolute Maximum Ratings” section may damage the device. 2. The device is not guaranteed to function outside its operating rating. 3. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5kΩ in ...

Page 5

Typical Characteristics Dropout vs. Output Current 450 400 350 300 2.5V OUT 250 200 150 100 OUTPUT CURRENT (A) Dropout Characteristics (1.8V) 2 10mA load 1.8 1.6 1.4 1 load 0.8 ...

Page 6

Ground Current vs. Supply (2.5V) 0.12 0.10 0.08 0.06 5A 0.04 2.5A 0. INPUT VOLTAGE (V) Ground Current vs. Temperature 1 0.9 0.8 100mA 0.7 0.6 0.5 10mA 0.4 0.3 0.2 0.1 0 ...

Page 7

Functional Characteristics Enable Transient Response 2.5V OUT C = 100µF Ceramic OUT OUT Load Transient Response 2.5V OUT C = 100µF Ceramic OUT February 2007 ...

Page 8

Application Information The MIC37501/ high-performance, low dropout voltage regulator suitable for moderate to high-current regulator applications. Its 500mV dropout voltage at full load makes it especially valuable in battery- powered systems and as a high-efficiency noise filter in ...

Page 9

Larger values help to improve performance even further. By virtue of its low dropout voltage, this device does not saturate into dropout as readily as similar NPN- based designs. When converting from 3.3V to 2.5V, 2.5V to ...

Page 10

Package Information 4 θ February 2007 7-Pin S-PAK (R) 1 θ 2 θ 1 θ 1 θ 3 θ 2 θ 3 θ 4 θ 5-Pin TO-263 (U) 10 M9999-020507 ...

Page 11

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 responsibility is ...

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