参数资料
| 型号： | SC4620MLTRT |
| 厂商： | Semtech |
| 文件页数： | 9/19页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK ADJ 2.5A 20MLPQ |
| 标准包装： | 1 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 0.5 V ~ 5.5 V |
| 输入电压： | 2.3 V ~ 5.5 V |
| PWM 型： | 电压模式 |
| 频率 - 开关： | 200kHz ~ 2MHz |
| 电流 - 输出： | 2.5A |
| 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： | 20-MLPQ |
| 包装： | 标准包装 |
| 供应商设备封装： | 20-MLPQ（4x4） |
| 其它名称： | SC4620MLDKR |
SC4620
POWER MANAGEMENT
Pin Descriptions
Pin
MLPQ-20
1,2
3
4
5
6
7,12
8,19,20
Pin Name
PVIN
ISET
SS
FS
PGOOD
VCC
NC
Pin Functions
Power supply voltage for high side MOSFETs.
Current limit setting pin. A resistor connected between ISET and AGND sets the over current
protection threshold. A ceramic decoupling between ISET pin to AGND have to be reserved to
prevent from noise influence.
Soft start time setting pin. A cap connected from this pin to GND sets the soft start up time.
Oscillator frequency setting pin. An external resistor connected from this pin to GND sets the
oscillator frequency.
Power good indicator. It is an open drain output. Low when the output is below the power good
threshold level.
Power supply voltage for the analog section of the controller.
No connection.
9
The oscillator frequency of the SC4624A is set by FS when SYNC/EN is pulled and held above
SYNC/EN 2V. Its synchronous mode is activated as SYNC/EN is driven by an external clock. Its shutdown
mode is invoked if SYNC/EN is pulled and held below 0.8V.
10
11
13
14,15
16,17,18
COMP
FB
AGND
PGND
PH
This is the output of the error amplifier. The voltage at this point is connected to the inverting
input of the PWM comparator. A compensation network is required in order to optimize the dy -
namic performance of the voltage mode control loop.
The inverting input of the error amplifier. It serves as the output voltage feedback point for the
buck controller. It senses the output voltage through an external divider.
Analog signal ground.
Power ground.
Switching nodes
THERMAL Pad for heatsinking purposes only. Connect to ground plane using multiple vias. Not electrically
PAD connected internally.
? 2008 Semtech Corp.
9
www.semtech.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SC4624 | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Low Input Voltage, High Efficiency, 4A Integrated FET Synchronous Step down DC/DC Regulator |
| SC4624_08 | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Low Input Voltage, High Efficiency, 4A Integrated FET Synchronous Step down DC/DC Regulator |
| SC4624A | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Low Input Voltage, High Efficiency, 4A Integrated FET Synchronous Step down DC/DC Regulator |
| SC4624AEVB-MLPQ | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Low Input Voltage, High Efficiency, 4A Integrated FET Synchronous Step down DC/DC Regulator |
| SC4624AMLTRT | 功能描述:IC REG BUCK ADJ 4A 20MLPQ RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:50 系列:- 类型:升压（升压） 输出类型:可调式 输出数:1 输出电压:5 V ~ 25 V 输入电压:2.3 V ~ 5.5 V PWM 型:电流模式 频率 - 开关:600kHz，1.2MHz 电流 - 输出:1A 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:8-TSSOP，8-MSOP（0.118"，3.00mm 宽） 包装:管件 供应商设备封装:8-MSOP |
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