ncp1536 ON Semiconductor, ncp1536 Datasheet

ncp1536

Manufacturer Part Number

ncp1536

Description

3.0 A, Step-down Switching Regulator

Manufacturer

ON Semiconductor

Datasheet

1.NCP1536.pdf (17 pages)

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NCP1536

3.0 A, Step−Down Switching

Regulator

ideally suited for easy and convenient design of a step−down

switching regulator (buck converter). This circuit is capable of driving

a 3.0 A load with excellent line and load regulation. It has an

adjustable output voltage and is internally compensated to minimize

the number of external components which simplifies the power supply

design.

efficiency is significantly higher in comparison with popular

three−terminal linear regulators, especially with higher input voltages.

In many cases, the power dissipated is so low that no heatsink is

required or its size could be reduced dramatically.

output voltage within specified input voltages and output load

conditions, and ±10% on the oscillator frequency (±2% over 0°C to

125°C). External shutdown is included, featuring 80 mA (typical)

standby current. The output switch includes cycle−by−cycle current

limiting, as well as thermal shutdown for full protection under fault

conditions.

Features

•

August, 2006 − Rev. 0

The NCP1536 series of regulators are monolithic integrated circuits

Since the NCP1536 converter is a switch−mode power supply, its

The NCP1536 features include a guaranteed ±4% tolerance on

Maximum Over Line and Load Conditions

Adjustable Output Voltage

Adjustable Version Output Voltage Range, 1.23 to 40 V ±4%

Guaranteed 3.0 A Output Current

Wide Input Voltage Range

Requires Only 4 External Components

52 kHz Fixed Frequency Internal Oscillator

TTL Shutdown Capability, Low Power Standby Mode

High Efficiency

Uses Readily Available Standard Inductors

Thermal Shutdown and Current Limit Protection

Moisture Sensitivity Level (MSL) Equals 1

Pb−Free Packages are Available

See detailed ordering and shipping information in the package

dimensions section on page 15 of this data sheet.

See general marking information in the device marking

section on page 15 of this data sheet.

Heatsink surface (shown as terminal 6 in

case outline drawing) is connected to Pin 3

DEVICE MARKING INFORMATION

Heatsink surface connected to Pin 3

ORDERING INFORMATION

http://onsemi.com

1. V

2. Output

3. Ground

4. Feedback

5. ON/OFF

Publication Order Number:

D2T SUFFIX

CASE 936A

CASE 314D

T SUFFIX

CASE 314B

TV SUFFIX

TO−220

PAK

NCP1536/D

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