LT3436 - LT3436是3A, 800kHz Step-Up Switching Regulator

LT3436是LINEAR凌力尔特公司的一款LCD / CCD / OLED 偏置产品，LT3436是LT3436是3A, 800kHz Step-Up Switching Regulator，本站介绍了LT3436的封装应用图解、特点和优点、功能等，并给出了与LT3436相关的LINEAR元器件型号供参考。

LT3436 - LT3436是3A, 800kHz Step-Up Switching Regulator - LCD / CCD / OLED 偏置 - 电源管理 - 凌力尔特

LT3436 - 3A, 800kHz Step-Up Switching Regulator

LT3436 - 3A, 800kHz Step-Up Switching Regulator - Linear Technology（凌力尔特）

功能描述

The LT3436 is an 800kHz monolithic boost switching regulator. A high efficiency 3A, 0.1 Ohm switch is included on the die together with all the control circuitry required to complete a high frequency, current-mode switching regulator. Current-mode control provides fast transient response and excellent loop stability.

New design techniques achieve high efficiency at high switching frequencies over a wide operating range. A low dropout internal regulator maintains consistent performance over a wide range of inputs from 24V systems to Li- Ion batteries. An operating supply current of 1mA maintains high efficiency, especially at lower output currents. Shutdown reduces quiescent current to 11µA. Maximum switch current remains constant at all duty cycles. Synchronization capability allows an external logic level signal to increase the internal oscillator from 1MHz to 1.4MHz.

Full cycle-by-cycle switch current limit protection and thermal shutdown are provided. High frequency operation allows the reduction of input and output filtering components and permits the use of tiny chip inductors. The LT3436 is available in an exposed pad, 16-pin TSSOP package.

*Patent numbers 6,535,042; 6,611,131; 6,498,466

特点

Constant 800kHz Switching Frequency

Wide Operating Voltage Range: 3V to 25V

High Efficiency 0.1 Ohm/3A Switch

1.2V Feedback Reference Voltage

±2% Overall Output Voltage Tolerance

Uses Low Profile Surface Mount External Components

Low Shutdown Current: 11µA

Synchronizable from 1MHz to 1.4MHz

Current-Mode Control

Constant Maximum Switch Current Rating at All Duty Cycles*