NCV8509PDW26 datasheet(4/16 Pages) ONSEMI

Part #	NCV8509PDW26

Description	Sequenced Linear Dual-Voltage Regulator

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Manufacturer	ONSEMI [ON Semiconductor]

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NCV8509 Series

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4

PIN DESCRIPTION

Pin No.

Symbol

Description

1

SLEW

Control for output rise time during power up. Requires capacitor to ground.

2

Delay

Timing capacitor for RESET function.

3

GND

Ground.

4, 5, 7−9, 11, 14, 16

NC

No connection.

6

RESET

Active reset (accurate to VOUT > 1.0 V).

10

VOUT2

100 mA output (

±2% output voltage) for powering microprocessor core.

12

VIN2

Input voltage for VOUT2.

13

VIN1

Input voltage for VOUT1, and internal circuitry.

15

VOUT1

100 mA output (

±2% output voltage) for powering microprocessor I/O.

VOUT1

VIN1

+

−

VIN1

VIN2

CIN2

CIN1

Power Shunt

Bandgap

& Bias

GND

RESET

VOUT1

RESET Comp

VBG

VREF

CDelay

Delay

Discharge

Latch

SLEW

CSLEW

VREF

VOUT1

COUT1

VBG

VREF

VIN1

Error Amp

Thermal

Shutdown

+

−

Error Amp

VOUT2

COUT2

VIN2

VREF

Start−Up

Current

Figure 2. Block Diagram

SLEW

Control

REX

VREF

Start−Up

Current

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NCV8509PDW26 Datasheet(PDF) 4 Page - ON Semiconductor

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