參數(shù)資料
型號: TPS6755Y
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩(wěn)壓器
英文描述: 2 A SWITCHING REGULATOR, 160 kHz SWITCHING FREQ-MAX, UUC8
封裝: DIE-8
文件頁數(shù): 1/17頁
文件大?。?/td> 265K
代理商: TPS6755Y
TPS6755
ADJUSTABLE INVERTING DC/DC CONVERTER
SLVS155A – NOVEMBER 1996 REVISED DECEMBER 1996
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D 1-W Output (VCC ≥ 4.5 V)
D 2.7-V to 9-V Input Operating Range
D 78% Typical Efficiency
D 160-kHz Fixed-Frequency Current-Mode
PWM Controller
D EN Input Inhibits Operation and Reduces
Supply Current to 1
A
D Output Voltage Limited to VO ≤ 12 V– VCC
D Soft Start
D 8-Pin SOIC and DIP Packages
D –40°C to 85°C Free-Air Temperature Range
D Pin-for-Pin Compatible with MAX755
description
The TPS6755 is an adjustable inverting dc/dc converter capable of operating from inputs as low as 2.7 V. The
only external components required are an inductor, an output filter capacitor, an input filter capacitor, a reference
filter capacitor, two resistors, and a Schottky rectifier. An enable input is provided to shut down the inverter when
an output voltage is not needed. The typical supply current is 1.9 mA at no-load and is further reduced to 1-
A
when the enable input is low.
The device features a 160-kHz current-mode pulse-width-modulation (PWM) controller with a p-channel
MOSFET power switch. The gate drive uses the converter output to reduce the die area needed to realize the
0.4-
MOSFET. Soft start is accomplished with the addition of one small capacitor at SS. A 1.22-V reference
is available for external loads up to 125
A.
The TPS6755 is attractive for board-level dc/dc conversion in computer peripherals and in battery-powered
equipment requiring high efficiency and low supply current.
Available in an 8-pin DIP or an 8-pin SOIC package, the TPS6755 operates over a free-air temperature range
of – 40
°C to 85°C.
EN
REF
SS
COMP
VCC
OUT
GND
FB
TPS6755
1
2
3
4
8
7
6
5
1
F
+
47
F
+
82 pF
10
F
10
H
1N5817
100
F
+
– 5 V
VI
2.7 V to 9 V
ENABLE
Not required for loads of 100 mA or less
10.2 k
42.2 k
Figure 1. Typical Circuit
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
1
2
3
4
8
7
6
5
EN
REF
SS
COMP
VCC
OUT
GND
FB
D OR P PACKAGE
(TOP VIEW)
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright
1996, Texas Instruments Incorporated
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