參數(shù)資料
型號: TPS54327DDAR
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩(wěn)壓器
英文描述: 5.7 A SWITCHING REGULATOR, 700 kHz SWITCHING FREQ-MAX, PDSO8
封裝: GREEN, PLASTIC, MS-012BA, SOP-8
文件頁數(shù): 1/18頁
文件大?。?/td> 399K
代理商: TPS54327DDAR
Vout (50 mV/div)
Iout (2A/div)
100
s/div
m
www.ti.com
SLVSAG1 – NOVEMBER 2010
3-A OUTPUT SINGLE SYNCHRONOUS STEP DOWN SWITCHER
WITH INTEGRATED FET (SWIFTTM )
Check for Samples: TPS54327
1
FEATURES
DESCRIPTION
23
D-CAP2 Mode Enables Fast Transient
Response
The TPS54327 is an adaptive on-time D-CAP2
mode synchronous buck converter. TheTPS54327
Low Output Ripple and Allows Ceramic Output
enables system designers to complete the suite of
Capacitor
various end equipment’s power bus regulators with a
Wide VIN Input Voltage Range: 4.5 V to 18 V
cost effective, low component count, low standby
Output Voltage Range: 0.76 V to 7.0 V
current solution. The main control loop for the
TPS54327 uses the D-CAP2 mode control which
Highly Efficient Integrated FET’s Optimized
provides a fast transient response with no external
for Lower Duty Cycle Applications
compensation components. The TPS54327 also has
– 100 m
(High Side) and 70 m (Low Side)
a proprietary circuit that enables the device to adopt
High Efficiency, less than 10 mA at shutdown
to both low equivalent series resistance (ESR) output
High Initial Bandgap Reference Accuracy
capacitors, such as POSCAP or SP-CAP, and
ultra-low
ESR
ceramic
capacitors.
The
device
Adjustable Soft Start
operates from 4.5-V to 18-V VIN input. The output
Pre-Biased Soft Start
voltage can be programmed between 0.76 V and 7 V.
700-kHz Switching Frequency (fSW)
The device also features an adjustable soft start time.
The TPS54327 is available in the 8-pin DDA
Cycle By Cycle Over Current Limit
package, and designed to operate from –40°C to
85°C.
APPLICATIONS
Wide Range of Applications for Low Voltage
System
Digital TV Power Supply
High Definition Blu-ray Disc Players
Networking Home Terminal
Digital Set Top Box (STB)
1
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.
2
D-CAP2 is a trademark of Texas Instruments.
3
Blu-ray Disc is a trademark of Blu-ray Disc Association.
PRODUCTION DATA information is current as of publication date.
Copyright 2010, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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