ZMR500 Zetex Semiconductors, ZMR500 Datasheet

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ZMR500

Manufacturer Part Number
ZMR500
Description
FIXED 2.5 AND 5 VOLT MINIATURE VOLTAGE REGULATORS
Manufacturer
Zetex Semiconductors
Datasheet

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FIXED 2.5 AND 5 VOLT
MINIATURE VOLTAGE REGULATORS
ISSUE 4 - MARCH 2002
DEVICE DESCRIPTION
The ZMR series of three terminal fixed
positive voltage regulators feature internal
current limit and will shut down under
thermal overload conditions making the
devices difficult to destroy.
The circuit design offers an exceptionally
low quiescent current, only 30 A for the 2.5
volt device, ideal for low power applications.
The initial devices in the series regulate to
2.5 or 5 volts with a drive capability up to
50mA, however, the flexible design will
allow other voltage selections to be made.
The device is designed with space saving in
mind and is available in the small outline
SOT23 package. The device is also available
in through hole TO92 package.
SCHEMATIC DIAGRAM
4-104
FEATURES
VOLTAGE RANGE
ZMR250
ZMR500
ZMR25H
ZMR50H
Small outline SOT23 package
TO92 package
2.5V and 5V output
22.5V maximum input voltage
(ZMR25H)
25V maximum input voltage (ZMR50H)
Output current up to 50mA
Very low Quiesent current (30 A)
Unconditionally stable
Other output voltages possible
Internal short circuit current limit
2.5V
5.0V
2.5V
5.0V
ZMR SERIES
Vout
Gnd
Vin

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ZMR500 Summary of contents

Page 1

... Output current up to 50mA Very low Quiesent current (30 A) Unconditionally stable Other output voltages possible Internal short circuit current limit VOLTAGE RANGE ZMR250 2.5V ZMR500 5.0V ZMR25H 2.5V ZMR50H 5.0V 4-104 Vin Vout Gnd ...

Page 2

... Output Noise Voltage Ripple Rejection Input Voltage Required in To Maintain Regulation Average Temperature O Coefficient of V ZMR250 20V ZMR500 20V SOT23 500mW (Note 3) TO92 600mW 100mA -55 to 125°C -65 to 150°C CONDITIONS 50mA O T =-55 to 125° =4.5 to 22.5V in ...

Page 3

ZMR SERIES ZMR50H ELECTRICAL CHARACTERISTICS TEST CONDITIONS (Unless otherwise stated):T SYMBOL PARAMETER V Output Voltage O V Line Regulation O V Load Regulation O l Supply Current s l Supply Current Change s V Output Noise Voltage ...

Page 4

ZMR250 ELECTRICAL CHARACTERISTICS TEST CONDITIONS (Unless otherwise stated):T SYMBOL PARAMETER V Output Voltage O V Line Regulation O V Load Regulation O l Supply Current s l Supply Current Change s V Output Noise Voltage Ripple ...

Page 5

... ZMR SERIES ZMR500 ELECTRICAL CHARACTERISTICS TEST CONDITIONS (Unless otherwise stated):T SYMBOL PARAMETER V Output Voltage O V Line Regulation O V Load Regulation O l Supply Current s l Supply Current Change s V Output Noise Voltage Ripple Rejection Input Voltage Required in To Maintain Regulation ...

Page 6

TYPICAL CHARACTERISTICS 5.02 I =5mA ZMR50H o 5. 4.98 4.96 2.52 2.50 I =5mA 2.48 2.46 ZMR25H -50 - 100 125 Temperature (°C) Output Voltage Temperature ...

Page 7

ZMR SERIES TYPICAL CHARACTERISTICS 1.0 0.1 0.01 100 1K Frequency (Hz) Output Impedance v Frequency Load Current ZMR25H C V 0.4 dI ZMR50H 0 -0 Time (µs) Load Transient Response 2 Surface ...

Page 8

... Quiescent Current v Temperature 2.5 2 1.5 1.0 0 100 -50 -25 Drop-Out Voltage v Temperature 4-111 ZMR SERIES I =10mA o ZMR500 ZMR250 Input Voltage ( ZMR500 - 100 125 0 Temperature (°C) I =10mA o ZMR500 ZMR250 100 125 Temperature (°C) ...

Page 9

... Io= 10mA ZMR250 ZMR500 10 100 1K 10K Ripple Frequency (Hz) Vin ZMR250 C =0 OUT /dt=5V/µs IN ZMR500 Time (µs) Line Transient Response TO92 Through Hole Device - 100 125 -50 0 Temperature (°C) Power Derating 100K ...

Page 10

... Top View ORDERING INFORMATION Part Number Package ZMR250C TO92 ZMR250F SOT23 ZMR25HC T092 ZMR25HF SOT23 ZMR500C TO92 ZMR500F SOT23 ZMR50HC TO92 ZMR50HF SOT23 TO92 Package Suffix – C Bottom View Part Mark ZMR250 25K ZMR25H 25X ZMR500 50K ZMR50H 5OR ZMR SERIES ...

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