参数资料
| 型号： | SC4501MLTRT |
| 厂商： | Semtech |
| 文件页数： | 4/21页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST ADJ 2A 10MLPD |
| 标准包装： | 1 |
| 类型： | 升压（升压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 可调至 32V |
| 输入电压： | 1.4 V ~ 16 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 1.5MHz |
| 电流 - 输出： | 2A |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-VFDFN 裸露焊盘 |
| 包装： | 标准包装 |
| 供应商设备封装： | 10-MLPD（3x3） |
| 其它名称： | SC4501MLDKR |
SC4501
POWER MANAGEMENT
Pin Diagram
Block Descriptions (MSOP-8)
Pin
1
2
3
4
5
6
7
8
Pin Name
COMP
FB
SHDN
GND
SW
IN
ROSC
SS
Exposed Pad
Pin Function
The output of the internal transconductance error amplifier. This pin is used for loop compensation.
The inverting input of the error amplifier. Tie to an external resistive divider to set the output voltage.
Shutdown Pin. The accurate 1.1V shutdown threshold and the 4.6uA shutdown pin current
hysteresis allow the user to set the undervoltage lockout threshold and hysteresis for the switching
regulator. Pulling this pin below 0.1V causes the converter to shut down to low quiescent current.
Tie this pin to IN if the UVLO and the shutdown features are not used. This pin should not be left
floating.
Ground. Tie to the ground plane.
Collector of the internal power transistor. Connect to the boost inductor and the rectifying diode.
Power Supply Pin. Bypassed with capacitors close to the pin.
A resistor from this pin to the ground sets the switching frequency.
Soft-Start Pin. A capacitor from this pin to the ground lengthens the start-up time and reduces start-
up current.
The exposed pad must be soldered to the ground plane on the PCB for good thermal conduction.
Block Diagram
IN
6
SW
5
4.6 μ A
SHDN
3
+
-
CMP
INTERNAL
SUPPLY
REG
1.1V
VOLTAGE
REFERENCE
THERMAL
SHUTDOW N
ENABLE
CLK
FB
2
COMP
1.242V
+
-
EA
REG
-
PWM
+
R
S
Q
1
1.5 μ A
SS
8
REG_GOOD
ILIM
+
-
I-LIMIT
R SENSE
ENABLE
Σ
+
+
+
ISEN
-
ROSC
CLK
OSCILLATOR
SLOP E COMP
4
7
Figure 2. SC4501 (MSOP-8) Block Diagram.
GND
2011
? 2005 Semtech Corp.
4
www.semtech.com
相关PDF资料 |
PDF描述 |
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| SC4502HMLTRT | IC REG BOOST ADJ 1.4A 10MLPD |
| SC4503TSKTRT | IC REG BOOST ADJ 1.4A TSOT23-5 |
| SC4508AMLTRT | IC REG CTRLR BST INV PWM 12-MLPQ |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SC4501MSETRT | 功能描述:IC REG BOOST ADJ 2A 8MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 产品培训模块:MIC23xxx HyperLight Load™ Regulators 标准包装:5,000 系列:HyperLight Load® 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.8V 输入电压:2.7 V ~ 5.5 V PWM 型:混合物 频率 - 开关:4MHz 电流 - 输出:2A 同步整流器:是 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:8-VFDFN 裸露焊盘，8-MLF? 包装:带卷 (TR) 供应商设备封装:8-MLF?（2x2） 产品目录页面:1094 (CN2011-ZH PDF) 其它名称:576-3303-2 |
| SC4501STDEVB | 制造商:Semtech Corporation 功能描述:EVALUATION BOARD 制造商:SEMTECH 功能描述:Eval Board for SC4501 Step-Up Switching Regulator |
| SC4502 | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:1.4Amp, 2MHz Step-Up Switching Regulator with Soft-Start |
| SC4502EVB | 制造商:SEMTECH 功能描述:Evaluation Board for SC4502 Series Step-up Switching Regulator |
| SC4502H | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:1.4Amp, 2MHz Step-Up Switching Regulator with Soft-Start |
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