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You can contact me for the best price TPS40057 WIDE-INPUT SYNCHRONOUS BUCK CONTROLLER Hot sale Original
Manufacturer Product Number
TPS40057
Description
TPS40057 WIDE-INPUT SYNCHRONOUS BUCK CONTROLLER Hot sale Original
Package Condition
Tape & Reel (TR)
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Product Details
1 Features • New, similar products available: – LM5145 75-V synchronous buck controller with wide input voltage and duty cycle ranges – LM5146 100-V synchronous buck DC/DC controller with wide duty-cycle range • Wide input voltage range from 4.5 V to 60 V • Reference voltage of 600 mV with 1% accuracy • Programmable UVLO and hysteresis • Voltage mode control with voltage feed forward • Programmable frequency between 100 kHz and 600 kHz • Bi-directional -frequency synchronization with primary and secondary option • Low-side FET sensing overcurrent protection and high-side FET sensing short-circuit protection with integrated thermal compensation • Programmable closed loop soft-start • Supports pre-biased outputs • Thermal shutdown at 165°C with hysteresis • Voltage tracking • Power good • ENABLE with 1-μA low current shutdown • LDO output of 8.0 V and 3.3 V • Integrated Bootstrap Diode • 20-Pin 3.5 mm × 4.5 mm VQFN (RGY) package • Create a Custom Design with WEBENCH® Tools 2 Applications • POL modules • Wide input voltage, high-power density DC - DC converters for industrial, networking, and telecom equipment 3 Description 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 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 undervoltage lockout (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 softstart, output voltage tracking and adaptive dead-time control. TPS40170 provides accurate output voltage regulation through 1% ensured accuracy. Additionally, the controller implements a novel scheme of bidirectional synchronization with one controller acting as the primary and other downstream controllers acting as secondaries synchronized to the primary in-phase or 180° out-of-phase. Secondary controllers can be synchronized to an external clock within ±30% of the free-running switching frequency. New products (LM5145 and LM5146) offer reduced BOM cost, higher efficiency, and reduced design size among many other features. |
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TPS40057 WIDE-INPUT SYNCHRONOUS BUCK CONTROLLER Hot sale Original
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