RN5RZ20LC-TR datasheet, PDF - EEWORLD Datasheet

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RN5RZ20LC-TR: DescriptionLOW DROP-OUT AND LOW NOISE VOLTAGE REGULATOR; File Size141KB，24 Pages; ManufacturerRicoh Company Ltd.; Websitehttp://www.ricoh.com/

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RN5RZ20LC-TR Overview

LOW DROP-OUT AND LOW NOISE VOLTAGE REGULATOR

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LOW DROP-OUT AND LOW NOISE

VOLTAGE REGULATOR

RN5RZ SERIES

APPLICATION MANUAL

ELECTRONIC DEVICES DIVISION

NO.EA-039-9803

NOTICE

1. The products and the product specifications described in this application manual are subject to change or dis-

continuation of production without notice for reasons such as improvement. Therefore, before deciding to use

the products, please refer to Ricoh sales representatives for the latest information thereon.

2. This application manual may not be copied or otherwise reproduced in whole or in part without prior written con-

sent of Ricoh.

3. Please be sure to take any necessary formalities under relevant laws or regulations before exporting or other-

wise taking out of your country the products or the technical information described herein.

4. The technical information described in this application manual shows typical characteristics of and example

application circuits for the products. The release of such information is not to be construed as a warranty of or a

grant of license under Ricoh's or any third party's intellectual property rights or any other rights.

5. The products listed in this document are intended and designed for use as general electronic components in

standard applications (office equipment, computer equipment, measuring instruments, consumer electronic

products, amusement equipment etc.). Those customers intending to use a product in an application requiring

extreme quality and reliability, for example, in a highly specific application where the failure or misoperation of

the product could result in human injury or death (aircraft, spacevehicle, nuclear reactor control system, traffic

control system, automotive and transportation equipment, combustion equipment, safety devices, life support

system etc.) should first contact us.

6. We are making our continuous effort to improve the quality and reliability of our products, but semiconductor

products are likely to fail with certain probability. In order prevent any injury to persons or damages to property

resulting from such failure, customers should be careful enough to incorporate safety measures in their design,

such as redundancy feature, fire-containment feature and fail-safe feature. We do not assume any liability or

responsibility for any loss or damage arising from misuse or inappropriate use of the products.

7. Anti-radiation design is not implemented in the products described in this application manual.

8. Please contact Ricoh sales representatives should you have any questions or comments concerning the prod-

ucts or the technical information.

June 1995

LOW DROP-OUT AND LOW NOISE

VOLTAGE REGULATOR

RN5RZ SERIES

OUTLINE

The RN5RZ Series are voltage regulator ICs with high output voltage accuracy, low supply current, low dropout

voltage and high ripple rejection developed through the use of a CMOS process. Each of these voltage regulator

ICs consists of a voltage reference unit, an error amplifier, output voltage setting resistors, a current limit circuit and

a chip enable circuit. (Provided two types of chip enable circuit ; “H” active and “L” active, that can be selected when

order.)

The output voltage of these ICs is fixed with high accuracy.

In addition to low supply current from CMOS process, the RN5RZ Series may lengthen battery life through low

dropout voltage and chip enable function thanks to the built-in low ON resistance transistor. Also when compared

with conventional regulators that employ CMOS process, these ICs have superior ripple rejection, input transient

response characteristic and load transient response characteristic thus making these product suitable for power sup-

ply for hand-held communication equipment.

Since the package for these ICs is the SOT-23-5 package, high density mounting of the ICs on boards is possible.

FEATURES

• Ultra-Low Supply Current ...........................................TYP. 20µA

• Ultra-Low Supply Current (Standby).........................TYP. 0.1µA

• High Accuracy Output Voltage ..................................±2.0%

• High Ripple Rejection .................................................TYP.55dB (f=1kHz)

• Low Dropout Voltage ..................................................TYP. 0.2V (I

OUT

=60mA)

• Low Temperature-Drift Coefficient of Output Voltage........TYP. ±100ppm/˚C

• Excellent Line Regulation ...........................................TYP. 0.05%/V

• Output Voltage .............................................................Stepwise setting with a step of 0.1V in the range of 2.0V to 6.0V

is possible (refer to Selection Guide).

• Built-in Short Current Limit Circuit ...........................TYP. 50mA

• Small Package ..............................................................SOT-23-5 (Mini-mold)

APPLICATIONS

• Power source for battery-powered equipment.

• Power source for cellular phones, cameras, VCRs, camcorders, hand-held audio instruments and hand-held com-

munication equipment.

• Power source for domestic appliances.

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