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參數資料
| 型號： | TPS56221DQPR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩壓器 |
| 英文描述： | SWITCHING CONTROLLER, PDSO22 |
| 封裝： | ROHS COMPLIANT, PLASTIC, SON-22 |
| 文件頁數： | 1/25頁 |
| 文件大小： | 655K |
| 代理商： | TPS56221DQPR |
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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相關代理商/技術參數 |
參數描述 |
|---|---|
| TPS56221DQPT | 功能描述:直流/直流開關調節器 4.5-14Vinp,25A High Crnt Synch Step-Down 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 |
| 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:電源管理IC開發工具 TPS56221 Eval Mod RoHS:否 制造商:Maxim Integrated 產品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| TPS5625EVM-105 | 功能描述:HIGH-PERFORMANCE SYNCHRONOUS BUC RoHS:是 類別:編程器，開發系統 >> 評估板 - DC/DC 與 AC/DC（離線）SMPS 系列:- 產品培訓模塊:Obsolescence Mitigation Program 標準包裝:1 系列:True Shutdown™ 主要目的:DC/DC，步升 輸出及類型:1，非隔離 功率 - 輸出:- 輸出電壓:- 電流 - 輸出:1A 輸入電壓:2.5 V ~ 5.5 V 穩壓器拓撲結構:升壓 頻率 - 開關:3MHz 板類型: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 類別:編程器，開發系統 >> 評估板 - DC/DC 與 AC/DC（離線）SMPS 系列:- 產品培訓模塊:Obsolescence Mitigation Program 標準包裝:1 系列:True Shutdown™ 主要目的:DC/DC，步升 輸出及類型:1，非隔離 功率 - 輸出:- 輸出電壓:- 電流 - 輸出:1A 輸入電壓:2.5 V ~ 5.5 V 穩壓器拓撲結構:升壓 頻率 - 開關:3MHz 板類型:完全填充 已供物品:板 已用 IC / 零件:MAX8969 |
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