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LTC3830-1技术文档下载：

LTC3830-1 - 典型应用图例：

LTC3830-1 - 封装图解：

LTC3830-1LTC3830-1

LINEAR凌力尔特芯片：

LTC3830-1 - LTC3830-1是High Power Step-Down Synchronous DC/DC Controllers for Low Voltage Operation

LTC3830-1是LINEAR凌力尔特公司的一款外部开关电源控制器产品，LTC3830-1是LTC3830-1是High Power Step-Down Synchronous DC/DC Controllers for Low Voltage Operation，本站介绍了LTC3830-1的封装应用图解、特点和优点、功能等，并给出了与LTC3830-1相关的LINEAR元器件型号供参考。

LTC3830-1 - LTC3830-1是High Power Step-Down Synchronous DC/DC Controllers for Low Voltage Operation - 外部开关电源控制器 - 电源管理 - 凌力尔特

LTC3830-1 - High Power Step-Down Synchronous DC/DC Controllers for Low Voltage Operation

LTC3830 - High Power Step-Down Synchronous DC/DC Controllers for Low Voltage Operation - Linear Technology（凌力尔特）

功能描述

The LTC3830/LTC3830-1 are high power, high efficiency switching regulator controllers optimized for 3.3V-5V to 1.xV-3.xV step-down applications. A precision internal reference and feedback system provide ±1% output regulation over temperature, load current and line voltage variations. The LTC3830/LTC3830-1 use a synchronous switching architecture with N-channel MOSFETs. Additionally, the chip senses output current through the drain-source resistance of the upper N-channel FET, providing an adjustable current limit without a current sense resistor.

The LTC3830/LTC3830-1 operate with an input supply voltage as low as 3V and with a maximum duty cycle of >91% over temperature. They include a fixed frequency PWM oscillator for low output ripple operation. The 200kHz free-running clock frequency can be externally adjusted or synchronized with an external signal from 100kHz to 500kHz. In shutdown mode, the LTC3830 supply current drops to <10µA. The LTC3830-1 differs from the LTC3830 S8 version by replacing shutdown with a soft-start function.

For a similar, pin compatible DC/DC converter with an output voltage as low as 0.6V, please refer to the LTC3832.

特点

High Power Switching Regulator Controller for 3.3V-5V to 1.xV-3.xV Step-Down Applications

No Current Sense Resistor Required

Low Input Supply Voltage Range: 3V to 8V

Maximum Duty Cycle >91% Over Temperature

All N-Channel External MOSFETs

Excellent Output Regulation: ±1% Over Line, Load and Temperature Variations

High Efficiency: Over 95% Possible

Adjustable or Fixed 3.3V Output (16-Pin Version)

Programmable Fixed Frequency Operation: 100kHz to 500kHz

External Clock Synchronization

Soft-Start (Some Versions)

Low Shutdown Current: <10µA

Overtemperature Protection

Available in S8, S16 and SSOP-16 Packages

应用

CPU Power Supplies

Multiple Logic Supply Generator

Distributed Power Applications

High Efficiency Power Conversion

以下列出了不同封装及包装形式的具体型号,并标出了直接在linear官网上订货的价格（美元）

器件型号	封装	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量)
LTC3830-1ES8	SO-8	E	$3.61	$3.05
LTC3830-1ES8#PBF	SO-8	E	$3.61	$3.05
LTC3830-1ES8#TR	SO-8	E		$3.11
LTC3830-1ES8#TRPBF	SO-8	E		$3.11
LTC3830EGN	SSOP-16	E	$4.50	$3.80
LTC3830EGN#PBF	SSOP-16	E	$4.50	$3.80
LTC3830EGN#TR	SSOP-16	E		$3.86
LTC3830EGN#TRPBF	SSOP-16	E		$3.86
LTC3830ES	SO-16	E	$4.14	$3.50
LTC3830ES#PBF	SO-16	E	$4.14	$3.50
LTC3830ES#TR	SO-16	E		$3.56
LTC3830ES#TRPBF	SO-16	E		$3.56
LTC3830ES8	SO-8	E	$3.61	$3.05
LTC3830ES8#PBF	SO-8	E	$3.61	$3.05
LTC3830ES8#TR	SO-8	E		$3.11
LTC3830ES8#TRPBF	SO-8	E		$3.11

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