LT1534是Ultralow Noise 2A Switching Regulator

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LT1534 - LT1534是Ultralow Noise 2A Switching Regulator

LT1534是Linear公司的一款超低噪声稳压器产品，LT1534是Ultralow Noise 2A Switching Regulator，本站介绍了LT1534的封装应用图解、特点和优点、功能等，并给出了与LT1534相关的凌力尔特元器件型号供参考。

LT1534 - Ultralow Noise 2A Switching Regulator

LT1534 - Ultralow Noise 2A Switching Regulator - Linear Technology（凌力尔特）

功能描述

The LT1534/LT1534-1 are a new class of switching regulator designed to reduce conducted and radiated electromagnetic interference (EMI). Ultralow noise and EMI are achieved by providing user control of the output switch slew rates. Voltage and current slew rates can be independently programmed to optimize switcher harmonic content versus efficiency. The LT1534/LT1534-1 can reduce high frequency harmonic power by as much as 40dB with only minor losses in efficiency. The LT1534/LT1534-1 utilize a current mode architecture optimized for low noise boost topologies. The ICs include a 2A power switch along with all necessary oscillator, control and protection circuitry. Unique error amp circuitry can regulate both positive and negative voltages. The internal oscillator may be synchronized to an external clock for more accurate placement of switching harmonics. Protection features include cycle-by-cycle current limit protection, undervoltage lockout and thermal shutdown. Low minimum supply voltage and low supply current during shutdown make the LT1534/LT1534-1 well suited for portable applications. The LT1534/LT1534-1 are available in the 16-pin narrow SO package.

特点

Greatly Reduced Conducted and Radiated EMI

Low Switching Harmonic Content

Independent Control of Switch Voltage and Current Slew Rates

2A Current Limited Power Switch

Regulates Positive and Negative Voltages

20kHz to 250kHz Oscillator Frequency

Easily Synchronized to External Clock

Wide Input Voltage Range: 2.7V to 23V

Low Shutdown Current: 12µA Typical

Easier Layout than with Conventional Switchers

应用

Precision Instrumentation Systems

Isolated Supplies for Industrial Automation

Medical Instruments

Wireless Communications

Single Board Data Acquisition Systems

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)
LT1534CS	SO-16	C	$4.70	$3.95
LT1534CS-1	SO-16	C	$4.65	$3.93
LT1534CS-1#PBF	SO-16	C	$4.65	$3.93
LT1534CS-1#TR	SO-16	C		$3.99
LT1534CS-1#TRPBF	SO-16	C		$3.99
LT1534CS#PBF	SO-16	C	$4.70	$3.95
LT1534CS#TR	SO-16	C		$4.01
LT1534CS#TRPBF	SO-16	C		$4.01
LT1534IS	SO-16	I	$5.40	$4.55
LT1534IS-1	SO-16	I	$5.85	$4.95
LT1534IS-1#PBF	SO-16	I	$5.85	$4.95
LT1534IS-1#TR	SO-16	I		$5.01
LT1534IS-1#TRPBF	SO-16	I		$5.01
LT1534IS#PBF	SO-16	I	$5.40	$4.55
LT1534IS#TR	SO-16	I		$4.61
LT1534IS#TRPBF	SO-16	I		$4.61