TPS54262-Q1 - 具有低 IQ、电压监控和复位功能的汽车类 2A、60V 降压 DC/DC 转换器

TPS54262-Q1是TI德州仪器公司的一款转换器（集成开关）产品，TPS54262-Q1是具有低 IQ、电压监控和复位功能的汽车类 2A、60V 降压 DC/DC 转换器，本站介绍了TPS54262-Q1的封装应用图解、特点和优点、功能等，并给出了与TPS54262-Q1相关的TI元器件型号供参考。

TPS54262-Q1 - 具有低 IQ、电压监控和复位功能的汽车类 2A、60V 降压 DC/DC 转换器 - 转换器（集成开关） - DC/DC开关稳压器 - 德州仪器

产品特性

Asynchronous Switch Mode Regulator
Qualified for Automotive Applications
3.6-V to 48-V Operating Range, Withstands Transients up to 60 V
2-A Maximum Load Current
50-µA Typical Quiescent Current
200-kHz to 2.2-MHz Switching Frequency
0.8 V ± 1.5% Voltage Reference
High-Voltage Tolerant Enable Input
Soft Start on Enable Cycle
Slew Rate Control on Internal Power Switch
Low-Power Mode for Light-Load Conditions
Programmable Delay for Power-On Reset
External Compensation for Error Amplifier
Reset Function Filter Time for Fast Negative Transients
Programmable Overvoltage, Undervoltage Output Monitor
Thermal Sensing and Shutdown
Switch Current Limit Protection
Short Circuit and Overcurrent Protection of FET
Junction Temperature Range: –40°C to 150°C
20-Pin HTSSOP PowerPAD™ Package

产品应用

Automotive Telematics and eCall
Automotive Infotainment and Cluster
- Head Unit
- Navigation
- Display

产品说明

The TPS54262-Q1 device is a 60-V, 2-A step-down switch-mode power supply with a low-power mode and a programmable voltage supervisor with an integrated NMOS switching FET. Integrated input voltage line feed forward topology improves line transient regulation of the voltage mode buck regulator. The regulator has a cycle-by-cycle current limit. The device also features low-power mode operation under light-load conditions which reduces the supply current to 50 µA (typical). By pulling the EN pin low, the supply shutdown current is reduced to 1 µA (typical).

An open-drain reset signal indicates when the nominal output drops below the reset threshold set by an external resistor divider network. The output voltage start-up ramp is controlled by a soft-start capacitor. There is an internal undervoltage shut down which is activated when the input supply ramps down to 2.6 V. The device features a short circuit protection circuit which protects the device during overload condition, and also has a thermal shutdown protection.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
TPS54262-Q1	HTSSOP (20)	6.50 mm × 4.40 mm

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