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參數(shù)資料
| 型號(hào)： | TPS54262QPWPRQ1 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING REGULATOR, PDSO20 |
| 封裝： | GREEN, PLASTIC, HTSSOP-20 |
| 文件頁(yè)數(shù)： | 1/42頁(yè) |
| 文件大小： | 2335K |
| 代理商： | TPS54262QPWPRQ1 |
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VIN
EN
Cdly
GND
OV_TH
COMP
VSENSE
PH
V
Reg
VBATT
SS
SYNC
LPM
VIN
BOOT
Rslew
RT/CLK
VReg
R1
R4
R6
C1
C3
C4
C5
L
D1
D2
C7
R9
C8
R11
R10
RST_TH
TPS54262
RST
RESET
R8
R7
C2
C6
R5
R2
R3
R12
www.ti.com
SLVS996C – SEPTEMBER 2009 – REVISED JUNE 2010
2-A 60-V STEP-DOWN DC/DC CONVERTER WITH LOW QUIESCENT CURRENT
Check for Samples: TPS54262-Q1
1
FEATURES
Asynchronous Switch Mode Regulator
Programmable Overvoltage, Undervoltage
Output Monitor
3.6 V to 48 V Operating Range, Withstands
Transients up to 60 V
Thermal Sensing and Shutdown
2 A Maximum Load Current
Switch Current Limit Protection
50 A Typical Quiescent Current
Short Circuit and Overcurrent Protection of
FET
200 kHz to 2.2 MHz Switching Frequency
Junction Temperature Range: –40°C to 150°C
0.8 V ± 1.5% Voltage Reference
20-Pin HTSSOP PowerPAD Package
High Voltage Tolerant Enable Input
Soft Start on Enable Cycle
APPLICATIONS
Slew Rate Control on Internal Power Switch
Qualified for Automotive Applications
Low-Power Mode for Light Load Conditions
Automotive Telematics
Programmable Delay for Power-On Reset
Navigation Systems
External Compensation for Error Amplifier
In-Dash Instrumentation
Reset Function Filter Time for Fast Negative
Battery Powered Applications
Transients
DESCRIPTION
The TPS54262 is a step-down switch-mode power supply with a voltage supervisor and an integrated NMOS
switching FET. Integrated input voltage line feed forward topology improves line transient regulation of the
voltage mode buck regulator. The regulator has a cycle-by-cycle current limit. The device also features
low-power mode operation under light load conditions which reduces the supply current to 50 A (typical). By
pulling the EN pin low, the supply shutdown current is reduced to 1 A (typical).
An open drain reset signal indicates when the nominal output drops below the reset threshold set by an external
resistor divider network. The output voltage start up ramp is controlled by a soft start capacitor. There is an
internal undervoltage shut down which is activated when the input supply ramps down to 2.6 V. The device is
protected during an overload condition on output by frequency foldback operation, and also has a thermal
shutdown protection.
TYPICAL APPLICATION
TYPICAL CONVERTER EFFICIENCY
Figure 1.
Figure 2.
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.
PRODUCTION DATA information is current as of publication date.
Copyright 2009–2010, 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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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPS54283 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:SWIFT Converter Product Portfolio |
| TPS54283PWP | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 2A Non-Synch Buck Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)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(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| TPS54283PWPG4 | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 2A Non-Synch Buck Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)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(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| TPS54283PWPR | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 2A Dual Non-Synch Buck Conv RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)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(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| TPS54283PWPRG4 | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 2A Non-Synch Buck Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)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(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
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