NCV8772 datasheet(2/17 Pages) ONSEMI

Teilenummer	NCV8772

Bauteilbeschribung	Ultra Low Iq 350 mA LDO Regulator with Enable and

PDF	17 Pages

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Hersteller	ONSEMI [ON Semiconductor]

Direct Link	http://www.onsemi.com

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NCV8772

http://onsemi.com

2

Driver

With

Current

Limit

GND

Enable

EN

RO

Thermal

Shutdown

Oscillator

Reference

Erorr Amplifier

Reset Comparator

Timing

Circuit

Reset Driver

Figure 2. Simplified Block Diagram

Vin

Vout

* D2PAK−7 ONLY

** Pull−Down Resistor (typ 150 kW) active only in Reset State

DT**

***

*

* 5 V OPTION ONLY

*

PIN CONNECTIONS

1

Figure 3. Pin Connections

D2PAK−5

1. Vin

2. RO

Tab, 3. GND

4. EN

5. Vout

1

DPAK−5

D2PAK−7

1. Vin

2. RO

Tab, 3. GND

4. EN

5. Vout

1. Vin

2. RO

3. NC

Tab, 4. GND

5. EN

6. DT

7. Vout

1

PIN FUNCTION DESCRIPTION

Pin No.

DPAK−5

D2PAK−5

Pin No.

D2PAK−7

Pin Name

Description

1

Vin

Positive Power Supply Input. Connect 0.1 mF capacitor to ground.

2

RO

Reset Output. 30 kW internal Pull−up resistor connected to Vout. RO goes Low when Vout

drops by more than 7% (typ) from its nominal value (for NCV8772y devices with y = 1,2,3,...)

or more than 10% (typ) from its nominal value (for NCV8772y devices with y = A, B, C,...).

−

3

NC

Not Connected

3, TAB

4, TAB

GND

Power Supply Ground.

4

5

EN

Enable Input. Low level disables the IC.

−

6

DT

Reset Delay Time Select. Short to GND or connected to Vout to select time.

5

7

Vout

Regulated Output Voltage. Connect 1 mF capacitor with ESR < 100 W to ground.

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