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參數資料
| 型號： | TPS43000PWRG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩壓器 |
| 英文描述： | SWITCHING CONTROLLER, 2000 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | GREEN, TSSOP-16 |
| 文件頁數： | 1/31頁 |
| 文件大小： | 615K |
| 代理商： | TPS43000PWRG4 |
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TPS43000
SLUS489 OCTOBER 2001
MULTITOPOLOGY HIGHFREQUENCY
PWM CONTROLLER
1
www.ti.com
FEATURES
D High-Frequency (2-MHz) Voltage Mode PWM
Controller
D 1.8-V to 9.0-V Input Voltage Range
D 0.8-V to 8.0-V Output Voltage Range (Higher in
Non-Synchronous Boost Topology)
D High-Efficiency Buck, Boost, SEPIC or
Flyback (Buck-Boost) Topology
D Synchronous Rectification for High-Efficiency
D Drives External MOSFETs for High-Current
Applications
D Synchronizable Fixed-Frequency PWM or
Automatic Pulsed Frequency Modulation
(PFM) Mode
D Built-In Soft-Start
D User Programmable Discontinuous or
Continuous Conduction Mode
D Selectable Pulse-by-Pulse Current Limiting or
Hiccup Mode Protection
TYPICAL BUCK APPLICATION
APPLICATIONS
D Networking Equipment
D Servers
D Base Stations
D Cellular Telephones
D Satellite Telephones
D GPS Devices
D Digital Still and Handheld Cameras
D Personal Digital Assistants (PDAs)
DESCRIPTION
The TPS43000 is a high-frequency, voltage-mode,
synchronous PWM controller that can be used in buck,
boost, SEPIC, or flyback topologies. This highly flexible,
full-featured controller is designed to drive a pair of
external
MOSFETs
(one
N-channel
and
one
P-channel), enabling it for use with a wide range of
output voltages and power levels. With an automatic
PFM mode, a shutdown current of less than 1
A, a
sleep-mode current of less than 100
A and a full
operating current of less than 2 mA at 1 MHz, it is ideal
for building highly efficient, dc-to-dc converters.
The TPS43000 operates over a wide input voltage
range of 1.8 V to 9.0 V. Typical power sources are
distributed power systems, two to four nickel or alkaline
batteries, or one to two lithium-ion cells. It can be used
to generate regulated output voltages from as low as
0.8 V to 8 V or higher. It operates either in a
fixed-frequency mode, where the user programs the
frequency (up to 2 MHz), or in an automatic PFM mode.
In the automatic mode, the controller goes to sleep
when the inductor current goes discontinuous, and
wakes up when the output voltage has fallen by 2%. In
this hysteretic mode of operation, very high efficiency
can be maintained over a very wide range of load
current. The device can also be synchronized to an
external clock source using the dual function SYNC/SD
input pin.
UDG01036
5
1
3
4
2
6
12
7
SYNC/SD
CCS
RT
CCM
BUCK
PFM*
COMP
FB
TPS43000
8
10
11
16
15
13
14
9
VIN
VOUT
NDRV
GND
PDRV
VP
SWP
SWN
RTN
VIN
VOUT
Copyright
2001, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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.
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相關代理商/技術參數 |
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| TPS43060 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Low Quiescent Current Synchronous Boost DC-DC Controller with Wide VIN Range |
| TPS43060EVM-199 | 功能描述:電源管理IC開發工具 TPS43060 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 |
| TPS43060RTER | 功能描述:DC/DC 開關控制器 Sync Boost Cntlr Wide Input Vtg RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| TPS43060RTET | 功能描述:DC/DC 開關控制器 Sync Boost Cntlr Wide Input Vtg RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| TPS43061EVM-198 | 功能描述:電源管理IC開發工具 TPS43061 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 |
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