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  • SC81340SQFBR

    SC81340S是一款高效同步降压转换器，仅需少量外部元件，便于应用于紧凑型设备。该器件支持4V至24V输入电压，典型开关频率为500kHz。其集成功率MOSFET，可提供高达4A的连续输出电流

    Descriptions

    SC81340S is a high-efficiency synchronous buck converter

    with few external components and is easy to use in compact

    applications. The device operates with input voltages from

    4V to 24V with a typical switching frequency of 500kHz. It

    integrates power MOSFETs and can support up to 4A

    continuous output current.

    The device adopts a constant on-time control mode with

    internal compensation, which features excellent load

    transient performance and supports low equivalent series

    resistance output capacitors such as ceramic (MLCC)

    capacitors. It can operate in the 100% duty cycle to offer a

    low input-to-output voltage differential when the VIN equals

    VOUT.

    The device also features low quiescent current and PSM

    mode operation to maximum efficiency at light load. With

    PSM mode and low quiescent current during standby or light

    load, the device can further prolong battery life and is

    suitable for battery-powered applications.

    SC81340S provides protections, including input under-

    voltage protection, cycle-by-cycle peak current limitation,

    and thermal shutdown protection with auto-recovery.

    SC81340S is available in QFN-11(2mmx2mm) Package.


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商品描述

SC81340S是一款高效同步降压转换器，仅需少量外部元件，便于应用于紧凑型设备。该器件支持4V至24V输入电压，典型开关频率为500kHz。其集成功率MOSFET，可提供高达4A的连续输出电流

Descriptions

SC81340S is a high-efficiency synchronous buck converter

with few external components and is easy to use in compact

applications. The device operates with input voltages from

4V to 24V with a typical switching frequency of 500kHz. It

integrates power MOSFETs and can support up to 4A

continuous output current.

The device adopts a constant on-time control mode with

internal compensation, which features excellent load

transient performance and supports low equivalent series

resistance output capacitors such as ceramic (MLCC)

capacitors. It can operate in the 100% duty cycle to offer a

low input-to-output voltage differential when the VIN equals

VOUT.

The device also features low quiescent current and PSM

mode operation to maximum efficiency at light load. With

PSM mode and low quiescent current during standby or light

load, the device can further prolong battery life and is

suitable for battery-powered applications.

SC81340S provides protections, including input under-

voltage protection, cycle-by-cycle peak current limitation,

and thermal shutdown protection with auto-recovery.

SC81340S is available in QFN-11(2mmx2mm) Package.


参数名称参数数值
VIN range4.0~24V
Abs. VIN (max)30V
Vout range0.6-20V
Iout(Max)4A
MOSInt.
参数名称参数数值
Fsw500K
Almost 100% mode√
PFMFeatures
• 4~24V Input Voltage Range
• 0.6V Reference with ±1% Accuracy
• Max 4A Continuous Output Current
• Power Save Mode
• Low Quiescent Current
• Integrated 29mΩ/13mΩ MOSFET
• Low Dropout Mode with Almost 100% Duty Cycle
• 500K Switching Frequency
• COT with Fast Load Transient Performance
• Internal Soft Start
• Power Good Pin
• Cycle-by-Cycle Valley and Peak Current Limit
• Output Discharge via SW pin
• Short Circuit Protection with Hiccup Mode
• Input OVP
• ULVO, OUTOVP, TSD Protection (Non-Latch)
• QFN2X2 Package Available√
FeaturesExcellent efficiency and load transient performance Ultra low dropout mode
PackageQFN2X2


Features

• 4~24V Input Voltage Range

• 0.6V Reference with ±1% Accuracy

• Max 4A Continuous Output Current

• Power Save Mode

• Low Quiescent Current

• Integrated 29mΩ/13mΩ MOSFET

• Low Dropout Mode with Almost 100% Duty Cycle

• 500K Switching Frequency

• COT with Fast Load Transient Performance

• Internal Soft Start

• Power Good Pin

• Cycle-by-Cycle Valley and Peak Current Limit

• Output Discharge via SW pin

• Short Circuit Protection with Hiccup Mode

• Input OVP

• ULVO, OUTOVP, TSD Protection (Non-Latch)

• QFN2X2 Package Available