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參數資料
| 型號： | TPS6735P |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | FIXED NEGATIVE 5-V 200-mA INVERTING DC/DC CONVERTER |
| 中文描述： | 固定負的5V 200 mA的倒轉DC / DC轉換器 |
| 文件頁數： | 1/18頁 |
| 文件大小： | 306K |
| 代理商： | TPS6735P |
TPS6735
FIXED NEGATIVE 5-V 200-mA INVERTING DC/DC CONVERTER
SLVS141A – JULY 1996 – REVISED JANUARY 1997
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Negative 5-V 200-mA Output (V
CC
≥
4.5 V)
4-V to 6.2-V Input Operating Range
78% Typical Efficiency
160-kHz Fixed-Frequency Current-Mode
PWM Controller
EN Input Inhibits Operation and Reduces
Supply Current to 1
μ
A
Soft Start
8-Pin SOIC and DIP Packages
–40
°
C to 85
°
C Free-Air Temperature Range
Pin-for-Pin Compatible with MAX735
description
The TPS6735 is a fixed negative 5-V output inverting dc/dc converter capable of delivering 200 mA from inputs
as low as 4.5 V. The only external components required are an inductor, an output filter capacitor, an input filter
capacitor, a reference filter capacitor, and a Schottky rectifier. An enable input is provided to shut down the
inverter when a –5-V output is not needed. The typical supply current is 1.9 mA at no-load and is further reduced
to 1-
μ
A when the enable input is low.
The TPS6735 is a 160-kHz current-mode pulse-width-modulation (PWM) controller with a p-channel MOSFET
power switch. The gate drive uses the –5-V 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
μ
A.
The TPS6735 is attractive for board-level dc/dc conversion in computer peripherals and in battery-powered
equipment requiring high efficiency and low supply current.
The TPS6735 is available in 8-pin DIP and SOIC packages and operates over a free-air temperature range of
–40
°
C to 85
°
C.
EN
REF
SS
COMP
VCC
OUT
GND
FB
TPS6735
1
2
3
4
8
7
6
5
1
μ
F
+
47
μ
F
+
82 pF
10
μ
F
10
μ
H
1N5817
100
μ
F
+
– 5 V
VI
4 V to 6.2 V
ENABLE
Not required for loads of 100 mA or less
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
V
CC
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
1997, Texas Instruments Incorporated
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TPS6755ID | 功能描述:直流/直流開關調節器 200mA 12V DC/DC RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| TPS6755IDG4 | 功能描述:直流/直流開關調節器 Adjustable Inverting DC-DC Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| TPS6755IDR | 功能描述:直流/直流開關調節器 Adjustable Inverting DC-DC Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| TPS6755IDRG4 | 功能描述:直流/直流開關調節器 Adjustable Inverting DC-DC Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| TPS6755IP | 功能描述:直流/直流開關調節器 200mA 12V DC/DC RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
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