See datasheet for actual packaging/pinout drawings

Packaging

Package | PIN:

RGY | 20

Temp:

M (-55 to 125)

ECO Plan:

Green (RoHS & no Sb/Br)

TPS40170MRGYTEP


Enhanced Product 4.5 V to 60 V Wide-Input Synchronous PWM Buck Controller

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250 - 499 $ 6.51
500 - 749 $ 5.63
750 - 999 $ 4.87
1000 - 9999 $ 4.20

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Texas Instruments TPS40170MRGYTEP

TPS40170 is a full-featured, synchronous PWM buck controller that operates at an input voltage between 4.5 V and 60 V and is optimized for high-power-density, high-reliability dc-dc converter applications. The controller implements voltage-mode control with input-voltage feed-forward compensation that enables instant response to an input voltage change. The switching frequency is programmable from 100 kHz to 600 kHz.

The TPS40170 has a complete set of system protection and monitoring features such as programmable UVLO, programmable overcurrent protection (OCP) by sensing the low-side FET, selectable short-circuit protection (SCP) by sensing the high-side FET, and thermal shutdown. The ENABLE pin allows for system shutdown in a low-current (1-µA typical) mode. The controller supports pre-biased output, provides an open-drain PGOOD signal, and has closed-loop soft-start, output-voltage tracking, and adaptive dead-time control.

TPS40170 provides accurate output-voltage regulation within 1% accuracy. Additionally, the controller implements a novel scheme of bidirectional synchronization with one controller acting as the master and other downstream controllers acting as slaves, synchronized to the master in-phase or 180° out-of-phase. Slave controllers can be synchronized to an external clock within ±30% of the free-running switching frequency.

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