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ST735CD-TR Datasheet

  • ST735CD-TR

  • -5V INVERTING, NEGATIVE OUTPUT CURRENT-MODE PWM REGULATOR

  • 9頁

  • STMICROELECTRONICS   STMICROELECTRONICS

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ST735
-5V INVERTING, NEGATIVE OUTPUT
CURRENT-MODE PWM REGULATOR
s
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CONVERTS +4.0V TO + 6.2V INPUT TO -5V
OUTPUT
1W GUARANTEED OUTPUT POWER
75% TYPICAL EFFICIENCY
0.8mA QUIESCENT CURRENT
10碌A(chǔ) SHUTDOWN MODE
160KHZ FIXED FREQUENCY OSCILLATOR
CURRENT MODE PWM CONVERTER
LOW NOISE AND JITTER
SOFT START
SIMPLE APPLICATION CIRCUIT
UNDERVOLTAGE LOCKOUT
DIP-8
SO-8
DESCRIPTION
The ST735 is a Bi-CMOS, inverting switch mode
DC-DC regulator with internal Power MOSFET's
that generates a fixed -5V output voltage from a
4V to 6.2V input voltage; is guaranteed an output
current of 200mA for inputs greater than 4.5V. The
quiescent current for this device is typically of
0.8mA and, in shutdown mode it is reduced to
10碌A(chǔ).
SCHEMATIC DIAGRAM
These power-conserving features, along with high
efficiency and applications circuits, that lend itself
to minaturization, make the ST735 excellent in a
broad range of on-card, HDD and portable
equipment applications. The ST735 employ a
high performance current mode pulse with
modulation (PWM) control scheme to provide tight
output voltage regulation and low noise. The
fixed frequency oscillator is factory trimmed to
160KHz, allowing for easy noise filtering. The
regulator in production is tested to guarantee an
output accuracy within 鹵5% over all specified
conditions.
August 2002
1/9

ST735CD-TR 產(chǎn)品屬性

  • 2,500

  • 集成電路 (IC)

  • PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器

  • -

  • 反相

  • 固定

  • 1

  • -5V

  • 4 V ~ 6.2 V

  • 電流模式

  • 160kHz

  • 200mA

  • 無

  • -40°C ~ 125°C

  • 表面貼裝

  • 8-SOIC（0.154"，3.90mm 寬）

  • 帶卷 (TR)

  • 8-SO

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