STEVAL-ISA101V1 STMICROELECTRONICS [STMicroelectronics], STEVAL-ISA101V1 Datasheet

STEVAL-ISA101V1

Manufacturer Part Number

STEVAL-ISA101V1

Description

2 A DC step-down switching regulator with 4 V/36 V input voltage range based on the L5973D

Manufacturer

STMICROELECTRONICS [STMicroelectronics]

Datasheet

1.STEVAL-ISA101V1.pdf (4 pages)

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Features

■

Description

The STEVAL-ISA101V1 demonstration board is

based on the L5973D, a step-down monolithic

switching regulator with 2 A DC (2.5 A switch

peak current) current capability over the output

voltage range (1.235 V to 36 V).

The operating input voltage ranges from 4 V to

36 V. The device is based on BCD5 technology.

The embedded power element is a P-channel

D-MOS transistor so the driving stage does not

require any bootstrap capacitor and the duty cycle

can range up to 100%.

An internal oscillator fixes the switching frequency

at 250 kHz. A synchronization pin is available

when a higher switching frequency (up to 700

kHz) is required.

Pulse-by-pulse current protection and a frequency

foldback feature always guarantee an effective

short-circuit protection. Other features include

voltage feed-forward, protection against feedback

disconnection, inhibit and thermal shutdown.

Previous sales code: EVAL5973D.

May 2012

For further information contact your local STMicroelectronics sales office.

Output current: 2 A DC

Internal oscillator switching frequency: 250 kHz

Short-circuit protection

Inhibit and thermal shutdown

RoHS compliant

2 A DC step-down switching regulator with 4 V/36 V input voltage

out

: 4 V to 36 V

: 1.235 V to 36 V

Doc ID 023235 Rev 1

range based on the L5973D

STEVAL-ISA101V1

Data brief

www.st.com

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STEVAL-ISA101V1 Summary of contents

Page 1

... Inhibit and thermal shutdown ■ RoHS compliant Description The STEVAL-ISA101V1 demonstration board is based on the L5973D, a step-down monolithic switching regulator with (2.5 A switch peak current) current capability over the output voltage range (1.235 V). The operating input voltage ranges from ...

Page 2

... Schematic diagram 1 Schematic diagram Figure 1. Schematic diagram 2/4 Doc ID 023235 Rev 1 STEVAL-ISA101V1 ...

Page 3

... STEVAL-ISA101V1 2 Revision history Table 1. Document revision history Date 30-May-2012 Revision 1 Initial release. Doc ID 023235 Rev 1 Revision history Changes 3/4 ...

Page 4

... Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Philippines - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America 4/4 Please Read Carefully: © 2012 STMicroelectronics - All rights reserved STMicroelectronics group of companies www.st.com Doc ID 023235 Rev 1 STEVAL-ISA101V1 ...

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