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| 型号： | TPS40222DRPTG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 3.5 A SWITCHING REGULATOR, 1500 kHz SWITCHING FREQ-MAX, PDSO6 |
| 封装： | 3 X 3 MM, GREEN, PLASTIC, VSON-6 |
| 文件页数： | 1/27页 |
| 文件大小： | 662K |
| 代理商： | TPS40222DRPTG4 |
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FEATURES
APPLICATIONS
DESCRIPTION
R2
2
3
5
4
AVIN PVIN
FB
GND
SW
6
BOOST
C1
C2
C3
L1
R1
D1
VOUT
VIN
UDG04135
TPS40222
1
0
0.2
0.4
0.6
0.8
1.0
60
70
100
1.2
1.4
1.6
80
90
65
95
75
85
ILOAD Load Current A
η
Efficiency
%
VIN = 5 V
VOUT = 1.25 V
VOUT = 3.3 V
SLUS642A – OCTOBER 2005 – REVISED JANUARY 2006
1.6-A, 1.25-MHz BUCK CONVERTER IN A 3 mm
× 3 mm SON PACKAGE
Disk Drives
Input Voltage Range 4.5 VDC to 8 VDC
Set Top Box
Output Voltage (0.8 V to 90% VIN)
Point of Load Power
0 A to 1.6 A Current Capability
ASIC Power Supplies
Fixed 1.25-MHz Switching Frequency
Reference 0.8 V ±1%
Internal 250 m
N-Channel MOSFET Switch
The TPS40222 is a fixed-frequency, current-mode,
Current Mode Control with Internal Slope
non-synchronous
buck
converter
optimized
for
Compensation
applications powered by a 5-V distributed source.
Internal Soft-Start
With
internally
determined
operating
frequency,
soft-start time, and control loop compensation, the
Internal Loop Compensation
TPS40222 provides many features with a minimum of
Short Circuit Protection
external components.
Thermal Shutdown
The TPS40222 operates at 1.25 MHz and supports
High Efficiency Up to 92%
up to 1.6-A output loads. The output voltage can be
Small 3 mm
× 3 mm SON Package
programmed to as low as 0.8 V. The TPS40222
utilizes
pulse-by-pulse
current
limit
as
well
as
frequency foldback to protect the converter during a
catastrophic short circuited output condition.
SIMPLIFIED APPLICATION DIAGRAM
TYPICAL EFFICIENCY
vs
LOAD CURRENT
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.
PRODUCTION DATA information is current as of publication date.
Copyright 2005–2006, 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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PDF描述 |
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| TPS54872PWP | 12 A SWITCHING REGULATOR, 762 kHz SWITCHING FREQ-MAX, PDSO28 |
| TPS54972PWP | 16 A SWITCHING REGULATOR, 762 kHz SWITCHING FREQ-MAX, PDSO28 |
| TPS5510D | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS40222EVM-001 | 功能描述:电源管理IC开发工具 Non-Sync Buck Conv 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 |
| TPS40-23 | 制造商:TOTAL-POWER 制造商全称:TOTAL-POWER 功能描述:40 WATT OPEN - FRAME SWITCHING POWER SUPPLY |
| TPS40-24 | 制造商:TOTAL-POWER 制造商全称:TOTAL-POWER 功能描述:40 WATT OPEN - FRAME SWITCHING POWER SUPPLY |
| TPS40-25 | 制造商:TOTAL-POWER 制造商全称:TOTAL-POWER 功能描述:40 WATT OPEN - FRAME SWITCHING POWER SUPPLY |
| TPS40-30 | 制造商:TOTAL-POWER 制造商全称:TOTAL-POWER 功能描述:40 WATT OPEN - FRAME SWITCHING POWER SUPPLY |
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