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MIC4575-5.0WU

Description
Conv DC-DC 4V to 24V Step Down Single-Out 5V 1A 6-Pin(5+Tab) TO-263 Tube
File Size522KB,15 Pages
ManufacturerMicrochip
Websitehttps://www.microchip.com
Environmental Compliance
Related ProductsFound6parts with similar functions to MIC4575-5.0WU
Download Datasheet Download user manual Parametric Compare View All

MIC4575-5.0WU Overview

Conv DC-DC 4V to 24V Step Down Single-Out 5V 1A 6-Pin(5+Tab) TO-263 Tube

MIC4575-5.0WU Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesCompliant
ECCN (US)EAR99
Part StatusActive
HTS8542.39.00.01
TypeStep Down
Output TypeFixed
Switching Frequency (kHz)220
Switching RegulatorYes
Number of Outputs1
Output Voltage (V)5
Maximum Output Current (A)1
Minimum Input Voltage (V)4
Maximum Input Voltage (V)24
Operating Supply Voltage (V)4 to 40
Typical Quiescent Current (uA)5000
Efficiency (%)77(Typ)
Minimum Operating Temperature (°C)-40
Maximum Operating Temperature (°C)85
Supplier Temperature GradeIndustrial
PackagingTube
Pin Count6
Standard Package NameTO-263
Supplier PackageTO-263
MountingSurface Mount
Package Height4.6(Max)
Package Length10.67(Max)
Package Width9.17(Max)
PCB changed5
TabTab
Lead ShapeGull-wing
MIC4575
200kHz Simple 1A Buck Regulator
General Description
The MIC4575 is a series of easy to use fixed and
adjustable BiCMOS step-down (buck) switch-mode voltage
regulators. The 200kHz MIC4575 duplicates the pinout
and function of the 52kHz LM2575. The higher switching
frequency may allow up to a 2:1 reduction in output filter
inductor size.
The MIC4575 is available in 3.3V, and 5V fixed output
versions or a 1.23V to 20V adjustable output version. Both
versions are capable of driving a 1A load with excellent
line and load regulation.
The feedback voltage is guaranteed to ±2% tolerance for
adjustable versions, and the output voltage is guaranteed
to ±3% for fixed versions, within specified voltages and
load conditions. The oscillator frequency is guaranteed to
±10%.
In shutdown mode, the regulator draws less than 200µA
standby current. The regulator performs cycle-by-cycle
current limiting and thermal shutdown for protection under
fault conditions.
This series of simple switch-mode regulators requires a
minimum number of external components and can operate
using a standard series of inductors. Frequency comp-
ensation is provided internally.
The MIC4575 is available in TO-220 (T) and TO-263 (U)
packages for the industrial temperature range.
Data sheets and support documentation can be found on
Micrel’s web site at www.micrel.com.
Features
Fixed 200kHz operation
3.3V, 5V, and adjustable output versions
Voltage over specified line and load conditions:
Fixed version: ±3% max. output voltage
Adjustable version: ±2% max. feedback voltage
Guaranteed 1A switch current
Wide 4V to 24V input voltage range
Wide 1.23V to 20V output voltage range
Requires minimum external components
< 200µA typical shutdown mode
75% efficiency (adjustable version > 75% typical)
Standard inductors and capacitors are25% of typical
LM2575 values
Thermal shutdown
Overcurrent protection
100% electrical thermal limit burn-in
Applications
Simple high-efficiency step-down (buck) regulator
Efficient pre-regulator for linear regulators
On-card switching regulators
Positive-to-negative converter (inverting buck-boost)
Battery charger
Negative boost converter
Step-down 6V to 3.3V for Intel Pentium
®
and similar
microprocessors
___________________________________________________________________________________________________________
Typical Application
Shutdown
Enable
5
SHDN
SW
2
L1
68µH
5.0V/1A
C2
330µF
16V
8V to 24V
C1
150µF
35V
1
MIC4575-5.0_T
V
IN
FB
GND
3
4
D1
1N5819
Fixed Regulator
Pentium is a registered trademark of Intel Corporation
Adjustable Regulator
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (
408
) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
July 2009
1
M9999-072909

MIC4575-5.0WU Related Products

MIC4575-5.0WU MIC4575-3.3WU MIC4575-5.0WT MIC4575-5.0WU TR MIC4575WU TR MIC4575WU MIC4575-3.3WT MIC4575WT MIC4575-3.3WU-TR
Description Conv DC-DC 4V to 24V Step Down Single-Out 5V 1A 6-Pin(5+Tab) TO-263 Tube Conv DC-DC 4V to 24V Step Down Single-Out 3.3V 1A 6-Pin(5+Tab) TO-263 Tube Conv DC-DC 4V to 24V Step Down Single-Out 5V 1A 5-Pin(5+Tab) TO-220 Tube Conv DC-DC 4V to 24V Step Down Single-Out 5V 1A 6-Pin(5+Tab) TO-263 T/R Conv DC-DC 4V to 24V Step Down Single-Out 1.23V to 20V 1A 6-Pin(5+Tab) TO-263 T/R Conv DC-DC 4V to 24V Step Down Single-Out 1.23V to 20V 1A 6-Pin(5+Tab) TO-263 Tube Conv DC-DC 4V to 24V Step Down Single-Out 3.3V 1A 5-Pin(5+Tab) TO-220 Tube Conv DC-DC 4V to 24V Step Down Single-Out 1.23V to 20V 1A 5-Pin(5+Tab) TO-220 Tube Conv DC-DC 4V to 24V Step Down Single-Out 3.3V 1A 6-Pin(5+Tab) TO-263 T/R
EU restricts the use of certain hazardous substances Compliant Compliant - Compliant Compliant - Compliant Compliant Compliant
ECCN (US) EAR99 EAR99 - EAR99 EAR99 - EAR99 EAR99 EAR99
Part Status Active Active - Active Active - Active Active Active
HTS 8542.39.00.01 8542.39.00.01 - 8542.39.00.01 8542.39.00.01 - 8542.39.00.01 8542.39.00.01 -
Type Step Down Step Down - Step Down Step Down - Step Down Step Down Step Down
Output Type Fixed Fixed - Fixed Adjustable - Fixed Adjustable Fixed
Switching Frequency (kHz) 220 220 - 220 220 - 220 220 220
Switching Regulator Yes Yes - Yes Yes - Yes Yes Yes
Number of Outputs 1 1 - 1 1 - 1 1 1
Output Voltage (V) 5 3.3 - 5 1.23 to 20 - 3.3 1.23 to 20 3.3
Maximum Output Current (A) 1 1 - 1 1 - 1 1 1
Minimum Input Voltage (V) 4 4 - 4 4 - 4 4 4
Maximum Input Voltage (V) 24 24 - 24 24 - 24 24 24
Operating Supply Voltage (V) 4 to 40 4 to 40 - 4 to 40 4 to 40 - 4 to 40 4 to 40 4 to 40
Typical Quiescent Current (uA) 5000 5000 - 5000 5000 - 5000 5000 5000
Efficiency (%) 77(Typ) 72(Typ) - 77(Typ) 77(Typ) - 72(Typ) 77(Typ) 72(Typ)
Minimum Operating Temperature (°C) -40 -40 - -40 -40 - -40 -40 -40
Maximum Operating Temperature (°C) 85 85 - 85 85 - 85 85 85
Supplier Temperature Grade Industrial Industrial - Industrial Industrial - Industrial Industrial Industrial
Packaging Tube Tube - Tape and Reel Tape and Reel - Tube Tube Tape and Reel
Pin Count 6 6 - 6 6 - 5 5 6
Standard Package Name TO-263 TO-263 - TO-263 TO-263 - - - TO-263
Supplier Package TO-263 TO-263 - TO-263 TO-263 - TO-220 TO-220 TO-263
Mounting Surface Mount Surface Mount - Surface Mount Surface Mount - Through Hole Through Hole Surface Mount
Package Height 4.6(Max) 4.6(Max) - 4.6(Max) 4.6(Max) - 9.17(Max) 9.17(Max) 4.6(Max)
Package Length 10.67(Max) 10.67(Max) - 10.67(Max) 10.67(Max) - 10.67(Max) 10.67(Max) 10.67(Max)
Package Width 9.17(Max) 9.17(Max) - 9.17(Max) 9.17(Max) - 4.83(Max) 4.83(Max) 9.17(Max)
PCB changed 5 5 - 5 5 - 5 5 5
Tab Tab Tab - Tab Tab - Tab Tab Tab
Lead Shape Gull-wing Gull-wing - Gull-wing Gull-wing - - - Gull-wing

MIC4575-5.0WU Similar Products

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