参数资料
| 型号： | SP6127EK1-L/TR |
| 厂商： | Exar Corporation |
| 文件页数： | 3/12页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM VM 6TSOT |
| 标准包装： | 2,500 |
| PWM 型： | 电压模式 |
| 输出数： | 1 |
| 频率 - 最大： | 1.05MHz |
| 占空比： | 100% |
| 电源电压： | 4.5 V ~ 29 V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | SOT-23-6 细型，TSOT-23-6 |
| 包装： | 带卷 (TR) |
_______________________________________________________ PIN DESCRIPTION
PIN #
1
2
3
4
5
6
PIN
NAME
VIN
GATE
VDR
FB
GND
LX
DESCRIPTION
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.
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.
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
5V
Oscillator
VIN
Vin - 5V LDO
VDR
VIN
5V Internal LDO
I = k x VIN
FAULT
PWM Latch
VREF
Reset Dominant
S
GATE
FB
+
+
R
-
-
Error Amplifier
PWM Comparator
VDR
FAULT
FAULT
ENBL
LX
UVLO
FAULT
Register
+
-
70ms delay
S
R
R
4-Bit counter
POR
Overcurrent
Comparator
VIN - 0.3V
30uA
GND
1V
Set Dominant
Jan28-08 RevE
SP6127 TSOT-6 PFET Buck Controller
Page 3
? 2007 Exar Corporation
相关PDF资料 |
PDF描述 |
|---|---|
| SP6128ASEY-L | IC REG CTRLR BUCK PWM VM 14TSSOP |
| SP6132HEU-L | IC REG CTRLR BUCK PWM VM 10-MSOP |
| SP6133ER1-L/TR | IC REG CTRLR BUCK PWM VM 16-QFN |
| SP6134HEU-L | IC REG CTRLR BUCK PWM VM 10-MSOP |
| SP6136ER1-L/TR | IC REG CTRLR BUCK PWM VM 16-QFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SP6128A | 制造商:SIPEX 制造商全称: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 制造商全称:Sipex Corporation 功能描述:Low Voltage, Synchronous Step Down PWM Controller Ideal for 2A to 10A, Small Footprint, DC-DC Power Converters |
| SP6128AB | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:Non-Isolated DC-DC SIP Modules:3.0Vdc-5.5Vdc In, 0.9Vdc-3.3Vdc out, 10A |
| SP6128ACY | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:Low Voltage, Synchronous Step Down PWM Controller Ideal for 2A to 10A, Small Footprint, DC-DC Power Converters |
| SP6128ACY/TR | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:Low Voltage, Synchronous Step Down PWM Controller Ideal for 2A to 10A, Small Footprint, DC-DC Power Converters |
发布紧急采购，3分钟左右您将得到回复。