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RICHTEK RT2853BHGQWRoHS

Manufacturer
RICHTEKAsian Brands
MPN
RT2853BHGQW
LCSC Part #
C3034213
Packaging
QFN-16-EP(3x3)
Customer #
Key Attributes
High-Performance 650kHz 3A Step-Down Regulator
Datasheetpdf iconRICHTEK RT2853BHGQW
In-Stock: 1,499
1,499 In stock, ships now
Add to BOM List
QtyUnit PriceTotal Amount
1+$ 1.2126$ 1.21
10+$ 1.0189$ 10.19
30+$ 0.9131$ 27.39
100+$ 0.7927$ 79.27
500+$ 0.7389$ 369.45
1,500+$ 0.7145$ 1071.75
Standard Packaging1500/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators
ManufacturerRICHTEK
PackagingQFN-16-EP(3x3)
Operating Temperature-40℃~+125℃
Frequency - Switching650kHz
FunctionStep-down type
Number of Outputs1
FeaturesCycle-by-cycle current limiting;Adjustable soft-start;Output discharge;Hiccup current limiting;Overcurrent Protection;Operating status indication;Built-in LDO regulator
Output TypeAdjustable
TopologyBuck
Operating Voltage4.5V~18V
Switch tube (built-in/external)Built-in
Output Voltage765mV~7V
Output Current3A
Quiescent Current1.3mA
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging1500
Sales UnitPiece

Introduction

AI Translation

The RT2853A/B are high-performance 650kHz 3A stepdown regulators with internal power switches and synchronous rectifiers. They feature quick transient response using their Advanced Constant On-Time (ACOT) control architecture that provides stable operation with small ceramic output capacitors and without complicated external compensation, among other benefits. The input voltage range is from 4.5V to 18V and the output is adjustable from 0.765V to 7V. The proprietary ACOT control improves upon other fastresponse constant on-time architectures, achieving nearly constant switching frequency over line, load, and output voltage ranges. Since there is no internal clock, response to transients is nearly instantaneous and inductor current can ramp quickly to maintain output regulation without large bulk output capacitance. The RT2853A/B are stable with and optimized for ceramic output capacitors. With internal 110mΩ switches and 30mΩ synchronous rectifiers, the RT2853A/B display excellent efficiency and good behavior across a range of applications, especially for low output voltages and low duty cycles. Cycle-bycycle current limit, input under-voltage lock-out, externallyadjustable soft-start, output under- and over-voltage protection, and thermal shutdown provide safe and smooth operation in all operating conditions. The RT2853A and RT2853B are each available in WQFN-16L 3x3 package, with exposed thermal pads.

Features

AI Translation
  • Fast Transient Response
  • Steady 650kHz Switching Frequency
  • Enhanced Efficiency at Light Load (RT2853A)
  • Advanced Constant On-Time (ACOT) Control
  • Optimized for Ceramic Output Capacitors
  • 4.5V to 18V Input Voltage Range
  • Internal 110mΩ Switch and 30mΩ Synchronous Rectifier
  • 0.765V to 7V Adjustable Output Voltage
  • Externally-adjustable, Pre-biased Compatible SoftStart
  • Cycle-by-Cycle Current Limit
  • Optional Output Discharge Function
  • Output Over- and Under-voltage Shut-down
    • Latched (RT2853ALGQW/RT2853BLGQW Only)
    • With Hiccup Mode (RT2853AHGQW/ RT2853BHGQW Only)

Applications

AI Translation
  • Industrial and Commercial Low Power Systems
  • Computer Peripherals
  • LCD Monitors and TVs
  • Point of Load Regulation for High-Performance DSPs, FPGAs, and ASICs