TPS40200SHKQ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

TPS40200SHKQ属于集成电路（IC）的PMIC-稳压器-DCDC开关式控制器。由德州仪器制造生产的TPS40200SHKQDC-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。

1FEATURES

• Input Voltage Range 5.5 V to 52 V

• Output Voltage (700 mV to 87% VIN)

• 200-mA Internal P-Channel FET Driver

• Voltage Feed-Forward Compensation

• Undervoltage Lockout

• Programmable Fixed-Frequency

(35 kHz to 500 kHz) Operation

• Programmable Short-Circuit Protection

• Hiccup Overcurrent Fault Recovery

• Programmable Closed-Loop Soft Start

• 700-mV 1% Reference Voltage

• External Synchronization

APPLICATIONS

• Down-Hole Drilling

• High Temperature Environments

SUPPORTS EXTREME TEMPERATURE

APPLICATIONS

• Controlled Baseline

• One Assembly/Test Site

• One Fabrication Site

• Available in Extreme (–55°C/210°C)

Temperature Range (1)

• Extended Product Life Cycle

• Extended Product-Change Notification

• Product Traceability

• Texas Instruments high temperature products

utilize highly optimized silicon (die) solutions

with design and process enhancements to

maximize performance over extended

temperatures.

DESCRIPTION

The TPS40200 is a flexible nonsynchronous controller with a built-in 200-mA driver for P-channel FETs. The

circuit operates with inputs up to 52 V, with a power-saving feature that turns off driver current once the external

FET has been fully turned on. This feature extends the flexibility of the device, allowing it to operate with an input

voltage up to 52 V, without dissipating excessive power. The circuit operates with voltage-mode feedback and

has feed-forward input-voltage compensation that responds instantly to input-voltage change. The integral 700-

mV reference is trimmed to 2%, providing the means to accurately control low voltages. Clock frequency, soft

start, and overcurrent limit each are easily programmed by a single, external component. The part has

undervoltage lockout, and can be easily synchronized to other controllers or a system clock to satisfy sequencing

and/or noise-reduction requirements.