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| 型号： | TPS54426PWP |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 7.5 A SWITCHING REGULATOR, 700 kHz SWITCHING FREQ-MAX, PDSO14 |
| 封装： | GREEN, PLASTIC, HSSOP-14 |
| 文件页数： | 1/26页 |
| 文件大小： | 945K |
| 代理商： | TPS54426PWP |
Vout (50 mV/div)
Iout (2 A/div)
100
s/div
m
www.ti.com
SLVSAD6B – AUGUST 2010 – REVISED NOVEMBER 2010
4.5V to 18V Input, 4-A Synchronous Step-Down SWIFT Converter with Eco-Mode
Check for Samples: TPS54426
1
FEATURES
DESCRIPTION
23
D-CAP2 Mode Enables Fast Transient
Response
The TPS54426 is an adaptive on-time D-CAP2
mode synchronous buck converter. The TPS54426
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 5.5 V
current solution. The main control loop for the
TPS54426 uses the D-CAP2 mode control which
Highly Efficient Integrated FET’s Optimized
provides a very fast transient response with no
for Lower Duty Cycle Applications
external compensation components. The adaptive on-
– 65 m
(High Side) and 55 m (Low Side)
time control supports seamless transition between
High Efficiency, less than 10 m
mA at shutdown
PWM mode at higher load conditions and Eco-
High Initial Bandgap Reference Accuracy
mode operation at light loads. Eco-mode allows
the TPS54426 to maintain high efficiency during
Adjustable Soft Start
lighter load conditions. The TPS54426 also has a
Pre-Biased Soft Start
proprietary circuit that enables the device to adopt to
700-kHz Switching Frequency (fSW)
both low equivalent series resistance (ESR) output
capacitors, such as POSCAP, SP-CAP, and ultra-low
Cycle By Cycle Over Current Limit
ESR ceramic capacitors. The device operates from
Power Good Output
4.5-V to 18-V VIN input. The output voltage can be
Auto-Skip Eco-mode for High Efficiency at
programmed between 0.76 V and 5.5 V. The device
Light Load
also features an adjustable soft start time and a
power good function. The TPS54426 is available in
the 14-pin HTSSOP package and the 16 pin QFN
APPLICATIONS
package, designed to operate from –40°C to 85°C.
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, Eco-mode, PowerPAD are trademarks 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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相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS54426PWP | 制造商:Texas Instruments 功能描述:IC BUCK SYNC ADJ 14HTSSOP 制造商:Texas Instruments 功能描述:IC, BUCK, SYNC, ADJ, 14HTSSOP 制造商:Texas Instruments 功能描述:IC, BUCK, SYNC, ADJ, 14HTSSOP; Primary Input Voltage:18V; No. of Outputs:1; Output Current:10mA; Voltage Regulator Case Style:HTSSOP; No. of Pins:14; Operating Temperature Min:-40C; Operating Temperature Max:85C; SVHC:No SVHC ;RoHS Compliant: Yes |
| TPS54426PWPR | 功能描述:直流/直流开关转换器 4.5-18V Inp,4A Synch SWIFT Converter RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| TPS54426RSAR | 功能描述:直流/直流开关转换器 4.5V-18Vin,4A Synch Step-Down SWIFT RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| TPS54426RSAT | 功能描述:直流/直流开关转换器 4.5V-18Vin,4A Synch Step-Down SWIFT RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| TPS54427 | 制造商:TI 制造商全称:Texas Instruments 功能描述:4.5V to 18 V Input, 4-A Output Single Synchronous Step-Down Switcher with Integrated FET (SWIFTa?￠) |
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