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| 型号： | TPS56221DQPT |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING CONTROLLER, PDSO22 |
| 封装： | ROHS COMPLIANT, PLASTIC, SON-22 |
| 文件页数： | 1/25页 |
| 文件大小： | 655K |
| 代理商： | TPS56221DQPT |
VIN
BOOT
SW
ILIM
FB
COMP
PGD
EN/SS
TPS56221
BP
VDD
GND
V
IN
V
OUT
V
IN
SD
V
OUT
UDG-11045
SLUSAH5
– MARCH 2011
4.5-V to 14-V Input High-Current Synchronous Buck Converter
Check for Samples: TPS56221
1
FEATURES
DESCRIPTION
2
4.5-V to 14-V Input Voltage Range
TPS56221 is a high-efficiency and high-current
Incorporates Power Block Technology
synchronous buck converter designed to operate
Up to 25-A Output Current
from a supply between 4.5 V and 14 V. The device is
capable of producing an output voltage as low as
Fixed Frequency Options of 300 kHz, 500 kHz
0.6 V at loads up to 25 A. Integrated NexFET
and 1 MHz
Power MOSFETs provide a small foot print and ease
High-Side and Low-Side MOSFET RDS(on)
of use.
Sensing
The device implements a voltage-mode control with
Programmable Soft-Start
voltage feed-forward compensation that responds
600-mV Reference Voltage with 1% Accuracy
instantly to input voltage change.
Voltage Mode Control with Feed-Forward
TPS56221 is available in a thermally enhanced
Supports Pre-Biased Output
22-pin PQFN (DQP) PowerPAD
package.
Thermal Shutdown
The device offers design flexibility with a variety of
22-Pin 5 mm x 6 mm PQFN PowerPAD
user programmable functions, including soft-start,
Package
overcurrent
protection
(OCP)
levels,
and
loop
compensation. OCP levels are programmed by a
single external resistor connected from the ILIM pin to
APPLICATIONS
the
circuit
ground.
During
the
initial
power-on
Point-of-Load (POL) Power Modules
sequence, the device enters a calibration cycle,
High Density DC-DC Converters for Telecom
measures the voltage at the ILIM pin, and sets an
and Networking Applications
internal OCP voltage level. During operation, the
programmed OCP voltage level is compared to the
voltage drop across the low-side FET when it is on to
determine whether there is an overcurrent condition.
It then enters a shutdown/restart cycle until the fault
is removed.
SIMPLIFIED APPLICATION
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
PowerPAD, NexFET are trademarks of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright
2011, 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 |
|---|---|
| TPS56221DQPT | 制造商:Texas Instruments 功能描述:IC SYNC BUCK CONV 14 VIN 12 VOUT 25A 制造商:Texas Instruments 功能描述:IC, SYNC BUCK CONV, 14 VIN 12 VOUT, 25A, 1MHZ, PQFN-22 |
| TPS56221EVM-579 | 功能描述:电源管理IC开发工具 TPS56221 Eval Mod RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| TPS5625EVM-105 | 功能描述:HIGH-PERFORMANCE SYNCHRONOUS BUC RoHS:是 类别:编程器，开发系统 >> 评估板 - DC/DC 与 AC/DC（离线）SMPS 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:True Shutdown™ 主要目的:DC/DC，步升 输出及类型:1，非隔离 功率 - 输出:- 输出电压:- 电流 - 输出:1A 输入电压:2.5 V ~ 5.5 V 稳压器拓扑结构:升压 频率 - 开关:3MHz 板类型:完全填充 已供物品:板 已用 IC / 零件:MAX8969 |
| TPS5625EVM-112 | 功能描述:HIGH-PERFORMANCE SYNCHRONOUS BUC RoHS:是 类别:编程器，开发系统 >> 评估板 - DC/DC 与 AC/DC（离线）SMPS 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:True Shutdown™ 主要目的:DC/DC，步升 输出及类型:1，非隔离 功率 - 输出:- 输出电压:- 电流 - 输出:1A 输入电压:2.5 V ~ 5.5 V 稳压器拓扑结构:升压 频率 - 开关:3MHz 板类型:完全填充 已供物品:板 已用 IC / 零件:MAX8969 |
| TPS5625PWP | 功能描述:开关变换器、稳压器与控制器 High Current Synch Buck Controller RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
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