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ST755C Datasheet

  • ST755C

  • ADJUSTABLE INVERTING NEGATIVE OUTPUT CURRENT MODE PWM REGULA...

  • STMicroelectronics   STMicroelectronics

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ST755C
Adjustable inverting negative output
current mode PWM regulators
Features
鈻?/div>
鈻?/div>
2.7V to 11V input to adjustable negative output
conversion
1W guaranteed output power
(V
I
> 4.5V, T
A
鈮?/div>
70擄C)
68% typ. efficiency at 6V
Very low quiescent current: 1.2mA in on mode,
10碌A(chǔ) in shut down mode
Soft start
Very low noise output
160KHz fixed frequency oscillator
Mixed bipolar-CMOS technology
SO-8
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
and T
A
= 0擄C to 70擄C) and 275mA (typical value
at T
A
= 25擄C, V
O
= -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 V
I
+|V
O
|<12.7V. No load
supply current is 1.2mA
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 V
I
> 4.5V, V
O
= -5V
Table 1.
Device summary
Part number
ST755C
Package
ST755CD-TR
Packaging
SO-8 (tape & reel)
July 2007
Rev. 5
1/16
www.st.com
16

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