ST755C datasheet(1/16 Pages) STMICROELECTRONICS

No de pièce	ST755C

Description	Adjustable inverting negative output current mode PWM regulators

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Fabricant	STMICROELECTRONICS [STMicroelectronics]

Site Internet	http://www.st.com

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July 2007

Rev. 5

1/16

16

ST755C

Adjustable inverting negative output

current mode PWM regulators

Features

■ 2.7V to 11V input to adjustable negative output

conversion

■ 1W guaranteed output power

(VI > 4.5V, TA ≤70°C)

■ 68% typ. efficiency at 6V

■ Very low quiescent current: 1.2mA in on mode,

10µA in shut down mode

■ Soft start

■ Very low noise output

■ 160KHz fixed frequency oscillator

■ Mixed bipolar-CMOS technology

Description

The ST755 is an adjustable inverting switch-mode

DC-DC regulator with internal Power MOSFET

that generators an adjustable negative output

from a voltage input of 2.7V to 11V, output current

guaranteed at 200mA (for VI > 4.5V, VO = -5V

and TA = 0°C to 70°C) and 275mA (typical value

at TA = 25°C, VO = -5V).

A logic controlled shut down pin that interfaces

directly with microprocessor reduces supply

current to only 10mA. Input to Output differential

voltage is limited to VI+|VO|<12.7V. No load

supply current is 1.2mA

SO-8

www.st.com

Table 1.

Device summary

Part number

Package

Packaging

ST755C

ST755CD-TR

SO-8 (tape & reel)

Numéro de pièce similaire - ST755C

Fabricant	No de pièce	Fiches technique	Description
STMicroelectronics	ST755CD	80Kb / 9P	ADJUSTABLE INVERTING NEGATIVE OUTPUT CURRENT MODE PWM REGULATORS Sep-1998
	ST755CD-TR	80Kb / 9P	ADJUSTABLE INVERTING NEGATIVE OUTPUT CURRENT MODE PWM REGULATORS Sep-1998
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Fabricant	No de pièce	Fiches technique	Description
STMicroelectronics	ST735	268Kb / 9P	-5V INVERTING, NEGATIVE OUTPUT CURRENT-MODE PWM REGULATOR Aug-2002
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Texas Instruments	LM137QML	312Kb / 17P	3-Terminal Adjustable Negative Regulators
Maxim Integrated Produc...	MAX636ACPA	377Kb / 8P	Preset/Adjustable Output CMOS Inverting Switching Regulators Rev 0; 5/91
Texas Instruments	LM337IMP-NOPB	2Mb / 22P	3-Terminal Adjustable Negative Regulators

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