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RICHTEK RT6585CGQW product image
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RICHTEK RT6585CGQW

Manufacturer
RICHTEKAsian Brands
MPN
RT6585CGQW
LCSC Part #
C3249954
Packaging
WQFN-20(3x3)
Customer #
Key Attributes
Dual-Channel Synchronous DC-DC Step-Down Controller with 5V/3.3V LDOs
DatasheetRICHTEK RT6585CGQW
RoHS Compliance1 documents available
Alternative Parts2
Every Order Guarantee
100% Authentic · 30-Day Return or Replacement
In-Stock: 115
115 In stock, ships now
Minimum: 1Multiple: 1Sales Unit: Piece
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QtyUnit PriceTotal Amount
1+$ 2.6139$ 2.61
10+$ 2.1928$ 21.93
30+$ 1.9289$ 57.87
100+$ 1.6585$ 165.85
500+$ 1.5373$ 768.65
1,500+$ 1.4832$ 2224.80
Standard Packaging1500/Full Reel
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - Linear + Switching
ManufacturerRICHTEK
PackagingWQFN-20(3x3)
Synchronous RectifierYes
FunctionStep-down type
Frequency - Switching500kHz~600kHz
Number of Outputs2
Output TypeAdjustable
Output Voltage2V~5.5V
Quiescent Current25uA
Operating Voltage5V~25V
Operating Temperature-40℃~+125℃
Output Current100mA
TopologyBuck
FeaturesAdjustable current limiting;Cycle-by-cycle current limiting;Protection latch;Output discharge;Light load efficient mode;Built-in LDO regulator;Operating status indication;Overcurrent Protection
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Introduction

AI Translation

The RT6585C is a dual-channel step-down, controller generating supply voltages for battery-powered systems. It includes two Pulse-Width Modulation (PWM) controllers adjustable from 2V to 5.5V, and two fixed 5V/3.3V linear regulators. Each linear regulator provides up to 100mA output current and 3.3V linear regulator provides 1% accuracy under 35mA. The RT6585C provides a mode selection pin, SKIPSEL, to select Diode-Emulation Mode (DEM) or Audio Skipping Mode (ASM). Other features include onboard power-up sequencing, a power-good output, internal soft-start, and soft-discharge output that prevents negative voltage during shutdown. A constant current ripple PWM control scheme operates without sense resistors and provides 100ns response to load transient. For maximizing power efficiency, the RT6585C automatically switches to the diode-emulation mode in light load applications. The RT6585C is available in the WQFN-20L 3x3 package. The recommended junction temperature range is -40°C to 125°C.

Features

AI Translation
  • Support Connected Standby Mode for Ultrabook
  • CCRCOT Control with 100ns Load Step Response
  • PWM Maximum Duty Ratio >98%
  • 5V to 25V Input Voltage Range
  • Dual Adjustable Output: CH1: 2V to 5.5V; CH2: 2V to 4V
  • 5V/3.3V LDOs with 100mA Output Current
  • 1% Accuracy on 3.3V LDO Output
  • Internal Frequency Setting: 500kHz/600kHz (CH1/CH2)
  • Internal Soft-Start and Soft-Discharge
  • 4700ppm/°C RDS(ON) Current Sensing
  • Independent Switcher Enable Control
  • Built in OVP/UVP/OCP/OTP
  • Non-latch UVLO
  • Power-Good Indicator
  • 20-Lead WQFN Package

Applications

AI Translation
  • Notebook and Sub-Notebook Computers
  • System Power Supplies
  • 3-Cell and 4-Cell Li+ Battery-Powered Device

Alternative Parts

MPNManufacturerAlternative TypePackagingAvailabilityUnit Price
RT6575AGQWRICHTEKSimilarWQFN-20(3x3)0$ 0.9545
RT6575EGQW(2)RICHTEKSimilarWQFN-20(3x3)0$ 1.5411
2 more alternative parts.View all substitutes