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參數(shù)資料
| 型號： | SP6127EK1L |
| 英文描述： | High-Voltage, Step-Down Controller in TSOT6 |
| 中文描述： | 高電壓，降壓型控制器在TSOT6 |
| 文件頁數(shù)： | 3/12頁 |
| 文件大?。?/td> | 564K |
| 代理商： | SP6127EK1L |
June 26, 2007 SP6127 TSOT-6 PFET Buck Controller
2007 Sipex Corporation
Page 3
_______________________________________________________
PIN DESCRIPTION
PIN #
PIN
NAME
DESCRIPTION
1
VIN
Input power supply for the controller. Place input decoupling capacitor as close
as possible to this pin.
Connect to the gate terminal of the external P-channel MOSFET.
2
GATE
3
VDR
Power supply for the internal driver. This voltage is internally regulated to
about 5V below VIN. Place a 0.1
μ
F decoupling capacitor between VDR and
V
IN
as close as possible to the IC.
Regulator feedback input. Connect to a resistive voltage-divider network to set
the output voltage. This pin can be also used for ON/OFF control. If this pin is
pulled above 1V the P-channel driver is disabled and controller resets internal
soft start circuit.
Ground pin.
4
FB
5
GND
6
LX
This pin is used as a current limit input for the internal current limit comparator.
Connect to the drain pin of the external MOSFET through an optional resistor.
Internal threshold is pre-set to 300mV nominal and can be decreased by
changing the external resistor based on the following formula: V
TRSHLD
=
300mV – 30uA * R
______________________________________________________
BLOCK DIAGRAM
FAULT
Register
Set Dominant
POR
+
-
ENBL
4-Bit counter
VDR
VIN
GATE
5V Internal LDO
VIN - 0.3V
Overcurrent
Comparator
LX
VDR
30uA
GND
5V
+
-
+
-
VREF
FAULT
FB
Oscillator
VIN
S
R
I = k x VIN
Error Amplifier
PWM Comparator
PWM Latch
Reset Dominant
Vin - 5V LDO
FAULT
+
-
1V
FAULT
70ms delay
UVLO
S
R
R
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| SP6127 | High-Voltage, Step-Down Controller in TSOT6 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SP6127EK1-L | 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| SP6127EK1L/TR | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:High-Voltage, Step-Down Controller in TSOT6 |
| SP6127EK1-L/TR | 功能描述:電壓模式 PWM 控制器 High-Voltage Step Down Controller RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓撲結(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| SP6128A | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Low Voltage, Synchronous Step Down PWM Controller Ideal for 2A to 10A, Small Footprint, DC-DC Power Converters |
| SP6128A_05 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Low Voltage, Synchronous Step Down PWM Controller Ideal for 2A to 10A, Small Footprint, DC-DC Power Converters |
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