RICHTEK

RT2857BHGQW

Step-down type 200kHz~1.6MHz Adjustable 6A WQFN-14AL(3.5x3.5) Voltage Regulators - DC DC Switching Regulators RoHS

WQFN-14AL(3.5x3.5)ROHS3 CompliantActive

6A, 18V Synchronous Step-Down Converter

Manufacturer: RICHTEK
Manufacturer part #: RT2857BHGQW
Store part #: C6461025
Package / case: WQFN-14AL(3.5x3.5)
Category: Voltage Regulators - DC DC Switching Regulators
Packaging: Tape & Reel (TR)

Datasheet (PDF)

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3,053 in stock

#C6461025

Stock & price checked 5 days ago

Quantity	Unit price	Pack price
1+	₹125.61	₹125.61
10+	₹113.00	₹1,130.00
30+	₹106.26	₹3,187.80
100+	₹98.44	₹9,844.00
500+	₹94.96	₹47,480.00
1,500+	₹93.23	₹1,39,845.00

Quantity (min 1)

1 × ₹125.61

₹125.61

excl. GST

₹148.22 incl. 18% GST

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Standard pack: 1,500 per reel

RT2857BHGQW

₹125.61 for 1 + GST

Specifications

Operating Temperature: -40℃~+150℃@(TJ)
Function: Step-down type
Frequency - Switching: 200kHz~1.6MHz
Number of Outputs: 1
Features: Cycle-by-cycle current limiting;Adjustable soft-start;Operating status indication;Overcurrent Protection;Hiccup current limiting;External compensation;Frequency synchronization
Output Type: Adjustable
Topology: Buck
Operating Voltage: 4.5V~18V
Switch tube (built-in/external): Built-in
Output Current: 6A
Quiescent Current: 600uA

Packaging & compliance

RoHS: ROHS3 Compliant
Lifecycle: Active
ECCN: EAR99
Packaging: Tape & Reel (TR)
Standard pack: 1,500 / Reel
Sold per: Piece
Minimum order: 1
Unit weight: 0.073 g

Overview

The RT2857B is a high efficiency, monolithic synchronous step-down DC-DC converter that can deliver up to 6A output current from a 4.5V to 18V input supply. The RT2857B current-mode architecture with external compensation allows the transient response to be optimized over a wide range of loads and output capacitors. Cycle-by-cycle current limit provides protection against shorted outputs and soft-start eliminates input current surge during startup. Fault condition protections include output over-current protection, output over-voltage protection, and overtemperature protection. The low current shutdown mode provides output disconnection, enabling easy power management in battery-powered systems.

Applications

High Performance Point of Load Regulation
Notebook Computers
High Density and Distributed Power Systems

Key features

Low RDS(ON) Power MOSFET Switches 26mΩ/19mΩ
Input Voltage Range: 4.5V to 18V
Adjustable Switching Frequency: 200kHz to 1.6MHz
Current-Mode Control
Synchronous to External Clock: 200kHz to 1.6MHz
Accurate Voltage Reference: 0.6V±1%, Over -40°C to 85°C; 0.6V±1.5%, Over -40°C to 150°C
Monotonic Start-Up into Pre-biased Outputs
Adjustable Soft-Start
Power Good Indicator
Over-Current Protection
Over-Temperature and Over-Voltage Protection
Input Under-Voltage Lockout
RoHS Compliant and Halogen Free