参数资料
| 型号： | SP6125EK1-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： | 345kHz |
| 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
V IN
GATE
VDR
FB
GND
LX
5V
FAULT
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 V IN . Place a 0.1uF decoupling capacitor between VDR and
Vin 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
VIN
VDR
Oscillator
Vin - 5V LDO
VIN
5V Internal LDO
I = k x VIN
PWM Latch
VREF
Reset Dominant
S
GATE
FB
+
+
R
-
-
Error Amplifier
PWM Comparator
VDR
FAULT
FAULT
ENBL
LX
UVLO
FAULT
Register
+
-
200ms delay
S
R
R
4-Bit counter
POR
Overcurrent
Comparator
VIN - 0.3V
30uA
GND
1V
Set Dominant
Jan28-08 RevG
SP6125: TSOT-6 PFET Buck Controller
3
? 2007 Exar Corporation
相关PDF资料 |
PDF描述 |
|---|---|
| SP6126EK1-L | IC REG CTRLR BUCK PWM VM 6TSOT |
| SP6127EK1-L/TR | IC REG CTRLR BUCK PWM VM 6TSOT |
| 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 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SP6126 | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:Evaluation Board Manual |
| SP6126_07 | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:High-Voltage, Step Down Controller in TSOT6 |
| SP6126_1 | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:Evaluation Board Manual |
| SP6126EB | 功能描述:电源管理IC开发工具 Eval Board for SP6126 Series 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 |
| SP6126EK1 | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:Evaluation Board Manual |
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