LT8390集成电路（IC）的PMIC-稳压器-DCDC开关式控制器规格书PDF中文资料

LT8390属于集成电路（IC）的PMIC-稳压器-DCDC开关式控制器。由亚德诺半导体技术有限公司制造生产的LT8390DC-DC 开关控制器PMIC（电源管理集成电路）DC 到 DC 开关式控制器是用于高效率电路的稳压 IC，其配置为生成高于（突升或步升）或低于（突降或步降）输入电源的输出电源电压。其他拓扑结构可能包括：降压-升压、反激、正激、Cuk、SEPIC、全桥、半桥和推挽式。这些器件不同于需要最小电压并“烧尽”多余电压的线性稳压器。

DESCRIPTION

The LT®8350 is a monolithic 4-switch synchronous buckboost

converter with Silent Switcher architecture to minimize

EMI emissions while delivering high efficiency at

high switching frequency. The switcher can regulate the

output voltage, input or output current from input voltages

above, below, or equal to the output voltage. The

proprietary peak current mode control scheme allows

adjustable and synchronizable 200kHz to 2MHz fixed frequency

operation, or spread spectrum frequency modulation

(SSFM) operation. With 3V to 40V input voltage

range, 1V to 18V output voltage capability, and seamless

low noise transitions between operation regions, the

LT8350 is ideal for voltage regulator, battery and supercapacitor

charger applications in automotive, industrial,

telecom, and battery powered systems.

The LT8350 provides input or output current monitor and

power good flag. Robust fault protection is provided to

detect output short-circuit condition, during which the

LT8350 retries, latches off, or keeps running.

FEATURES

- 4-Switch Single Inductor Architecture Allows VIN

Above, Below or Equal to VOUT

- Silent Switcher® Architecture for Low EMI

- Up to 95 Efficiency at 2MHz

- Proprietary Peak Current Mode

- 3V to 40V Input Voltage Range

- 1V to 18V Output Voltage Range

- ±1.5 Output Voltage Regulation

- Output/Input Current Regulation and Monitor

- Constant-Voltage/Constant-Current Regulation

- High Side PMOS Load Switch Driver

- No Top MOSFET Refresh Noise in Buck or Boost

- 200kHz to 2MHz Fixed Switching Frequency with

External Frequency Synchronization and SSFM

- VOUT Disconnected from VIN During Shutdown

- Small 4mm × 6mm 32-Pin LQFN Package

- AEC-Q100 Qualification in Progress

APPLICATIONS

- Automotive, Industrial, Telecom Systems

- Voltage Regulator with Accurate Current Limit

- High Frequency Battery-Powered System

- USB-PD Source