NCV4279_05 ONSEMI [ON Semiconductor], NCV4279_05 Datasheet

NCV4279_05

Manufacturer Part Number

NCV4279_05

Description

5.0 V Micropower 150 mA LDO Linear Regulator with DELAY, Adjustable RESET, and Sense Output

Manufacturer

ONSEMI [ON Semiconductor]

Datasheet

1.NCV4279_05.pdf (14 pages)

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NCV4279

5.0 V Micropower 150 mA

LDO Linear Regulator with

DELAY, Adjustable RESET,

and Sense Output

with an output current capability of 150 mA.

dropout voltage of 0.5 V at 100 mA. Low quiescent current is a feature

drawing only 150 mA with a 1.0 mA load. This part is ideal for any and

all battery operated microprocessor equipment.

with delay and a SI/SO monitor which can be used to provide an early

warning signal to the microprocessor of a potential impending reset

signal. The use of the SI/SO monitor allows the microprocessor to

finish any signal processing before the reset shuts the microprocessor

down.

low as 1.0 V. The Reset function is activated during the power up

sequence or during normal operation if the output voltage drops

outside the regulation limits.

external resistor divider to the R

against reverse battery, short circuit, and thermal overload conditions.

The device can withstand load dump transients making it suitable for

use in automotive environments. The device has also been optimized

for EMC conditions.

and Sense Out, the NCV4269 with integrated resistors can be used.

Features

•

December, 2005 − Rev. 3

The NCV4279 is a 5.0 V precision micropower voltage regulator

The output voltage is accurate within ±2.0% with a maximum

Microprocessor control logic includes an active reset output RO

The active Reset circuit operates correctly at an output voltage as

The reset threshold voltage can be decreased by the connection of an

If the application requires pullup resistors at the logic outputs Reset

and Control Changes

5.0 V ± 2.0% Output

Low 150 mA Quiescent Current

Active Reset Output Low Down to V

Adjustable Reset Threshold

150 mA Output Current Capability

Fault Protection

Early Warning through SI/SO Leads

Internally Fused Leads in SO−14 Package

Very Low Dropout Voltage

Electrical Parameters Guaranteed Over Entire Temperature Range

Pb−Free Packages are Available

NCV Prefix for Automotive and Other Applications Requiring Site

♦

+60 V Peak Transient Voltage

−40 V Reverse Voltage

Short Circuit

Thermal Overload

ADJ

lead. The regulator is protected

= 1.0 V

See detailed ordering and shipping information in the package

dimensions section on page 12 of this data sheet.

WL, L

YY, Y

WW, W = Work Week

G, G

ORDERING INFORMATION

http://onsemi.com

CASE 751A

D SUFFIX

CASE 751

D SUFFIX

SO−14

= Assembly Location

= Wafer Lot

= Year

= Lead Free Indicators

SO−8

Publication Order Number:

DIAGRAMS

MARKING

NCV4279

AWLYWWG

ALYW

4279

NCV4279/D

Related parts for NCV4279_05

NCV4279_05 Summary of contents

Page 1

NCV4279 5.0 V Micropower 150 mA LDO Linear Regulator with DELAY, Adjustable RESET, and Sense Output The NCV4279 is a 5.0 V precision micropower voltage regulator with an output current capability of 150 mA. The output voltage is accurate within ...

Page 2

I Reference and Trim ADJ ADJ D SO−8 PACKAGE PIN DESCRIPTION Package Pin Number SO−8 SO−14 Pin Symbol ADJ GND 10, ...

Page 3

MAXIMUM RATINGS (T = −40°C to 150°C) J Parameter Input to Regulator Input Peak Transient Voltage Sense Input Reset Threshold Adjust Reset Delay Ground Reset Output Sense Output Regulated Output Junction Temperature Storage Temperature Input Voltage Operating Range Junction Temperature ...

Page 4

ELECTRICAL CHARACTERISTICS Characteristic REGULATOR Output Voltage Current Limit Current Consumption – Current Consumption – Current Consumption – Dropout Voltage ...

Page 5

1000 mF I 470 RO,SAT Power−on−Reset Thermal Shutdown NCV4279 ...

Page 6

Sense Input Voltage V SLHIGH V SLLOW Sense Output Voltage HIGH LOW NCV4279 t PDSOLH Figure 4. Sense Timing Diagram http://onsemi.com PDSOHL t ...

Page 7

TYPICAL PERFORMANCE CHARACTERISTICS − (°C) J Figure 5. Charge Current I ,c vs. Temperature T D 500 400 T = 125°C J 300 T = 25°C J ...

Page 8

TYPICAL PERFORMANCE CHARACTERISTICS 1.6 1.5 1.4 Sense Output High 1.3 Sense Output Low 1.2 1.1 1.0 − (°C) J Figure 11. Sense Threshold V vs. Temperature T SI 350 300 250 200 150 100 50 0 ...

Page 9

TYPICAL PERFORMANCE CHARACTERISTICS 13 25° (mA) Q Figure 14. Current Consumption I Output Current ...

Page 10

OUTPUT REGULATOR The output is controlled by a precision trimmed reference. The PNP output has drive quiescent current control for regulation while the input voltage is low, preventing over saturation. Current limit and voltage monitors complement the regulator design to ...

Page 11

SENSE INPUT (SI) / SENSE OUTPUT (SO) VOLTAGE MONITOR An on−chip comparator is available to provide early warning to the microprocessor of a possible reset signal. The output is from an open collector driver. The reset signal typically turns the ...

Page 12

ORDERING INFORMATION Device Output Voltage NCV4279D1 NCV4279D1G NCV4279D1R2 NCV4279D1R2G NCV4279D2 NCV4279D2G NCV4279D2R2 NCV4279D2R2G †For information on tape and reel specifications,including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. NCV4279 Package SO−8 SO−8 ...

Page 13

0.25 (0.010 −Y− SEATING PLANE −Z− 0.25 (0.010 *For additional information on our Pb−Free strategy and soldering details, please download the ON ...

Page 14

G −T− SEATING PLANE 0.25 (0.010 Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to ...

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