NCP5500 Просмотр технического описания (PDF) - ON Semiconductor

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производитель

NCP5500

LDO Voltage Regulator 500 mA

ON Semiconductor 

NCP5500, NCV5500, NCP5501, NCV5501

Input

Enable

OFF ON

Cin

10 mF

NCP5500

NCV5500

Vin

NCP5501

NCV5501

Vout

EN*

NC/ADJ*

GND

GND

Output

Cout

4.7 mF

R1*

RL

R2*

*Applicable to NCP5500/NCV5500 only.

Figure 1. Typical Application Circuit

PIN FUNCTION DESCRIPTIONS

DPAK 3 DPAK 5 SOIC−8

Pin No. Pin No. Pin No.

−

1

8

Pin

Name

EN

1

2, Tab

3

−

2

3, Tab

4

5

1

2, 3, 6, 7

4

5

Vin

GND

Vout

NC/ADJ

Description

Enable. This pin allows for on/off control of the regulator. High level turns on the

output. To disable the device, connect to ground. If this function is not in use, con-

nect to Vin.

Positive power supply input voltage.

Ground. This pin is internally connected to the Tab heat sink.

Regulated output voltage.

No connection (Fixed output versions).

Voltage−adjust input (Adjustable output version). Use an external voltage divider

to set the output voltage over a range of 1.25 V to 5.0 V.

Vin

Vout

Bandgap

Reference

Error

Amplifier

−

+

Current Limit and

Saturation Sense

Thermal

Shutdown

Enable

EN*

Block*

Connection for Fixed Output

GND

Connection for Adjustable Output

NC / ADJ*

*Applicable to NCP5500/NCV5500 only.

Figure 2. Block Diagram

http://onsemi.com

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