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TPS6734IP Datasheet(PDF) 3 Page - Texas Instruments

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No. de pieza TPS6734IP
Descripción Electrónicos  FIXED 12-V 120-mA BOOST-CONVERTER SUPPLY
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Fabricante Electrónico  TI [Texas Instruments]
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TPS6734IP Datasheet(HTML) 3 Page - Texas Instruments

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TPS6734I
FIXED 12-V 120-mA BOOST-CONVERTER SUPPLY
SLVS127A – AUGUST 1995 – REVISED JANUARY 1999
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
functional block diagram
EN
1
EN
7
EN
FB
_
+
4
COMP
Voltage
Reference
x3.5
SS
Clamp
Error
Amplifier
PWM
Comparator
R
S
170-kHz
Oscillator
VCC
Power Switch
Drive Latch
Σ
2
REF
3
SS
x6
Current
Sense Amplifier
Overcurrent
Comparator
Driver
VCC
OUT
GND
8
6
5
+
1 M
Q
Terminal Functions
TERMINAL
DESCRIPTION
NAME
NO.
DESCRIPTION
EN
1
Enable. EN
≥ 2 V turns on the TPS6734. EN ≤ 0.4 V turns it off and reduces the supply current to 3 µA max.
REF
2
1.22-V reference voltage output. REF can source 100
µA for external loads.
SS
3
Soft Start. A capacitor between SS and GND brings the output voltage up slowly at power-up.
COMP
4
Compensation connection. A 0.001-
µF capacitor between COMP and FB stabilizes the feedback loop.
GND
5
Ground
OUT
6
N-channel MOSFET drain connection
FB
7
Feedback voltage. FB is connected to the converter output for the feedback loop.
VCC
8
Supply voltage input


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