TPS57040-Q1 - 具有 Eco-Mode? 的汽车类 3.5V 至 42V 输入、0.5 A 降压 SWIFT? 转换器

TPS57040-Q1是TI德州仪器公司的一款转换器（集成开关）产品，TPS57040-Q1是具有 Eco-Mode? 的汽车类 3.5V 至 42V 输入、0.5 A 降压 SWIFT? 转换器，本站介绍了TPS57040-Q1的封装应用图解、特点和优点、功能等，并给出了与TPS57040-Q1相关的TI元器件型号供参考。

TPS57040-Q1 - 具有 Eco-Mode? 的汽车类 3.5V 至 42V 输入、0.5 A 降压 SWIFT? 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

Qualified for Automotive Applications
AEC-Q100 Qualified With the Following Results
- Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
- Device HBM ESD Classification Level 2
- Device CDM ESD Classification Level C4B
3.5-V to 42-V Input Voltage Range
200-mΩ High-Side MOSFET
High Efficiency at Light Loads with a Pulse Skipping Eco-mode™ Control Scheme
116-μA Operating Quiescent Current
1.5-μA Shutdown Current
100-kHz to 2.5-MHz Switching Frequency
Synchronizes to External Clock
Adjustable Slow Start/Sequencing
Undervoltage and Overvoltage Power-good Output
Adjustable Undervoltage Lockout Voltage and Hysteresis
0.8-V Internal Voltage Reference
Supported by SwitcherPro™ Software Tool (http://focus.ti.com/docs/toolsw/folders/print/switcherpro.html)

产品应用

12-V Automotive Power Systems
Automotive Body Electronics
Passive Safety: Brake System & Airbags
12-V and 24-V Industrial Low Power Systems
Aftermarket Auto Accessories: Video, GPS, Entertainment

产品说明

The TPS57040-Q1 device is a 42-V 0.5-A step-down regulator with an integrated high-side MOSFET. Current mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode reduces the no load, input supply current to 116 μA. Using the enable pin, shutdown supply current is reduced to 1.5 μA, when the enable pin is low.

Undervoltage lockout is internally set at 2.5 V, but can be increased using the enable pin. The output voltage startup ramp is controlled by the slow start pin that can also be configured for sequencing/tracking. An open drain power-good signal indicates the output is within 92% to 109% of its nominal voltage.

A wide switching frequency range allows efficiency and external component size to be optimized. Frequency fold back and thermal shutdown protects the part during an overload condition.

The TPS57040-Q1 is available in a 10-pin thermally enhanced MSOP PowerPAD™ package (DGQ) and a 10-pin SON package (DRC).

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
TPS57040-Q1	MSOP-PowerPAD (10)	3.00 mm × 3.00 mm
TPS57040-Q1	VSON (10)	3.00 mm × 3.00 mm

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