TPS61040 - 采用 SOT-23 封装用于 LCD 和白光 LED 的 28V 400mA 开关升压转换器

TPS61040是TI德州仪器公司的一款转换器（集成开关）产品，TPS61040是采用 SOT-23 封装用于 LCD 和白光 LED 的 28V 400mA 开关升压转换器，本站介绍了TPS61040的封装应用图解、特点和优点、功能等，并给出了与TPS61040相关的TI元器件型号供参考。

TPS61040 - 采用 SOT-23 封装用于 LCD 和白光 LED 的 28V 400mA 开关升压转换器 - 转换器（集成开关） - DC/DC开关稳压器 - 德州仪器

产品特性

1.8-V to 6-V Input Voltage Range
Adjustable Output Voltage Range up to 28 V
400-mA (TPS61040) and 250-mA (TPS61041) Internal Switch Current
Up to 1-MHz Switching Frequency
28-μA Typical No-Load Quiescent Current
1-μA Typical Shutdown Current
Internal Soft Start
Available in SOT23-5, TSOT23-5, and 2-mm × 2-mm × 0.8-mm WSON Packages

产品应用

LCD Bias Supply
White-LED Supply for LCD Backlights
Digital Still Camera
PDAs, Organizers, and Handheld PCs
Cellular Phones
Internet Audio Players
Standard 3.3-V or 5-V to 12-V Conversion

产品说明

The TPS6104x is a high-frequency boost converter dedicated for small to medium LCD bias supply and white LED backlight supplies. The device is ideal to generate output voltages up to 28 V from a dual-cell NiMH/NiCd or a single-cell Li-Ion battery. The part can also be used to generate standard 3.3-V or 5-V to 12-V power conversions.

The TPS6104x operates with a switching frequency up to 1 MHz. This frequency allows the use of small external components using ceramic as well as tantalum output capacitors. Together with the thin WSON package, the TPS6104x gives a very small overall solution size. The TPS61040 device has an internal 400-mA switch current limit, while the TPS61041 device has a 250-mA switch current limit, offering lower output voltage ripple and allows the use of a smaller form factor inductor for lower power applications. The low quiescent current (typically 28 μA) together with an optimized control scheme, allows device operation at very high efficiencies over the entire load current range.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
TPS61040	SOT-23 (5)	2.90 mm × 1.60 mm
	SOT (5)	2.90 mm ×1.60 mm
	WSON (6)	2.00 mm × 2.00 mm
TPS61041	SOT-23 (5)	2.90 mm ×1.60 mm
TPS61041	WSON (6)	2.00 mm × 2.00 mm

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