BC847B/215
Nexperia USA Inc.
The Nexperia USA Inc. BC847B/215 is a bipolar transistor. It is RoHS3 Compliant and has an MSL Level 1 rating.
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The Texas Instruments TPS65270PWPR is a dual synchronous step-down (buck) converter designed for power management applications. It operates with an input supply voltage ranging from 4.5V to 18V, offering a regulated output voltage from 0.8V to 15V.
This regulator features two independent buck converters, with Buck 1 capable of up to 2A continuous output current and Buck 2 up to 3A. It utilizes peak current-mode control and offers adjustable switching frequencies between 300 kHz and 1.4 MHz, set by an external resistor. Key features include adjustable soft start, light-load efficiency improvements through pulse skipping mode, and startup with a prebiased output voltage.
The TPS65270PWPR is available in 24-lead thermally enhanced HTSSOP (PWP) and 4mm x 4mm VQFN (RGE) packages. Its wide input voltage range, dual outputs, and adjustable features make it suitable for various power supply designs requiring efficient voltage conversion.
Designed for ease of use, it includes dedicated enable and soft start pins for each buck converter. The 180° out-of-phase operation helps reduce input capacitance and power supply induced noise. Cycle-by-cycle overcurrent protection is also integrated for device safety.
| Qty | Low | High |
|---|---|---|
| 1+ | $1.22 | $1.22 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
4.5 V to 18 V.
0.8 V to 15 V.
Buck 1: 2 A, Buck 2: 3 A.
-40°C to 85°C.
HTSSOP (PWP) and VQFN (RGE).
300 kHz to 1.4 MHz, adjustable by external resistor.
10 µA typical.