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| 型号： | TPS53321RGTR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING REGULATOR, 1210 kHz SWITCHING FREQ-MAX, PQCC16 |
| 封装： | 3 X 3 MM, GREEN, PLASTIC, QFN-16 |
| 文件页数： | 1/23页 |
| 文件大小： | 505K |
| 代理商： | TPS53321RGTR |
TPS53321
13
VIN
14
VIN
6
7
5
SW SW SW
V
IN
2.9 V to 6 V
V
IN
V
DD
2.9 V to 3.5 V
Output All MLCCs
UDG-10204
4
3
10
9
PGD
C
BST
PGD
FB
COMP
12
11
2
VDD
AGND
SYNC
1
8
EN
PS
15
PGND
16
PGND
Pad
VBST
EN
SYNC
www.ti.com
SLUSAF3 – DECEMBER 2010
5-A Step-Down Regulator with Integrated Switcher
Check for Samples: TPS53321
1
FEATURES
LOW VOLTAGE APPLICATIONS
5-V Step-down Rail
2
96% Maximum Efficiency
3.3-V Step-down Rail
Continuous 5-A Output Current
Supports All MLCC Output Capacitor
DESCRIPTION
SmoothPWM Auto-Skip Eco-mode for
The TPS53321 provides a fully integrated 3-V to 5-V
Light-Load Efficiency
VIN integrated synchronous FET converter solution
Optimized Efficiency at Light and Heavy Loads
with 16 total components, in 200 mm2 of PCB area.
Voltage Mode Control
Due to the low on-resistance and TI's Proprietary
SmoothPWM Skip mode of operation, it enables
Supports Master-Slave Interleaved Operation
96% peak efficiency, and over 90% efficiency at
Synchronization up to ±20% of Nominal
loads as light as 100 mA. It requires only two 22-F
Frequency
ceramic output capacitors for a power dense 5-A
Conversion Voltage Range Between 2.9 V and
solution.
6.0 V
The
TPS53321
features
a
1.1-MHz
switching
Soft-Stop Output Discharge During Disable
frequency, skip mode operation support, pre-bias
Adjustable Output Voltage Ranging Between
startup, internal softstart, output soft discharge,
internal VBST switch, power good, EN/input UVLO,
0.6 V and 0.84 V × VIN
overcurrent,
overvoltage,
undervoltage
and
Overcurrent, Overvoltage and
over-temperature protections and all ceramic output
Over-Temperature Protection
capacitor support. It supports supply voltage from
Small 3 × 3 , 16-Pin QFN Package
2.9 V to 3.5 V and conversion voltage from 2.9 V to
6.0 V, and output voltage is adjustable from 0.6 V to
Open-Drain Power Good Indication
0.84 V × VIN.
Internal Boot Strap Switch
The TPS53321 is available in the 3 mm × 3 mm
Low RDS(on), 24 mΩ with 3.3-V Input and 19-mΩ
16-pin QFN package (Green RoHs compliant and Pb
with 5-V Input
free) and operates between –40°C and 85°C.
Supports Pre-bias Start-Up
TYPICAL APPLICATION CIRCUIT
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
SmoothPWM, Eco-mode are trademarks of Texas Instruments.
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 |
|---|---|
| TPS53321RGTT | 功能描述:直流/直流开关调节器 5A Step-Down Reg RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| TPS53353 | 制造商:TI 制造商全称:Texas Instruments 功能描述:High-Efficiency 20-A Synchronous Buck Converter with Eco-mode? |
| TPS53353DQPR | 功能描述:直流/直流开关调节器 HI-EFF 20A SYNC BUCK CONVERTER RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| TPS53353DQPT | 功能描述:直流/直流开关调节器 HI-EFF 20A SYNC BUCK CONVERTER RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| TPS53353DQPT | 制造商:Texas Instruments 功能描述:SYNCHRONOUS BUCK CONV 20A QFN22 制造商:Texas Instruments 功能描述:SYNCHRONOUS BUCK CONV, 20A, QFN22, Primary Input Voltage:15V, No. of Outputs:1, 制造商:Texas Instruments 功能描述:SYNCHRONOUS BUCK CONV, 20A, QFN22, Primary Input Voltage:15V, No. of Outputs:1, Output Voltage:5.5V, Output Current:20A, No. of Pins:22, Operating Temperature Min:-40C, Operating Temperature Max:85C, MSL:- , RoHS Compliant: No |
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