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RICHTEK RT6253AHGJ6F product image
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RICHTEK RT6253AHGJ6FRoHS

Manufacturer
RICHTEKAsian Brands
MPN
RT6253AHGJ6F
LCSC Part #
C2988423
Packaging
TSOT-23-6
Customer #
Key Attributes
High-Efficiency Synchronous Step-Down DC-DC Converter
Datasheetpdf iconRICHTEK RT6253AHGJ6F
In-Stock: 1,308
1,308 In stock, ships now
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QtyUnit PriceTotal Amount
1+$ 0.199$ 0.20
10+$ 0.1549$ 1.55
30+$ 0.136$ 4.08
100+$ 0.1124$ 11.24
500+$ 0.0992$ 49.60
1,000+$ 0.0929$ 92.90
Standard Packaging3000/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
PackagingTSOT-23-6
Operating Temperature-40℃~+125℃
Frequency - Switching580kHz
FunctionStep-down type
Number of Outputs1
FeaturesLight load efficient mode;Cycle-by-cycle current limiting;Hiccup current limiting;Overcurrent Protection
Output TypeAdjustable
TopologyBuck
Operating Voltage4.5V~17V
Switch tube (built-in/external)Built-in
Output Voltage765mV~7V
Output Current3A
Quiescent Current280uA
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging3000
Sales UnitPiece

Introduction

AI Translation

The RT6253A/B is a simple, easy-to-use, 3A synchronous step-down DC-DC converter with an input supply voltage range of 4.5V to 17V. The device possesses an accurate reference voltage and integrates low RDS(ON) power MOSFETs to achieve high efficiency. The RT6253A/B adopts Advanced Constant On-Time (ACOTTM) control architecture to provide an ultrafast transient response with few external components and to operate in nearly constant switching frequency over the line, load, and output voltage range. The RT6253A operates in automatic PSM that maintains high efficiency during light load operation. The RT6253B operates in Forced PWM that helps meet tight voltage regulation accuracy requirements. The RT6253A/B senses both FETs current for a robust over-current protection (OCP). The device features cycle-by-cycle current limit protection to prevent the device from the catastrophic damage in output short circuit, over-current or inductor saturation conditions. A built-in soft-start function prevents inrush current during start-up. The device also includes input under-voltage lockout, output under-voltage protection, and over-temperature protection (OTP) to provide safe and smooth operation in all operating conditions.

Features

AI Translation
  • Integrated 95mΩ and 50mΩ FETs
  • Continuous Current:
    • TSOT-23-6 (FC): 3A
    • SOT-563 (FC): 2.5A
  • Input Supply Voltage Range: 4.5V to 17V
  • Maximum Output Voltage Range: 7V
  • Advanced Constant On-Time (ACOTTM) Control:
    • Ultrafast Transient Response
    • Optimized for Low-ESR Ceramic Output Capacitors
  • High Accuracy Feedback Reference Voltage: ±1%
  • Optional for Operation Modes:
    • RT6253A: Power Saving Mode (PSM)
    • RT6253B: Forced PWM Mode
  • Fixed Switching Frequency: 580kHz
  • Enable Control and Fixed Soft-Start with typ. 1ms
  • Safe Start-Up from Pre-biased Output
  • Input Under-Voltage Lockout (UVLO)
  • Protection Function:
    • Output Under-Voltage Protection (UVP) with Hiccup Mode
    • High- / Low-side MOSFET OCP and OTP Function
  • RoHS Compliant and Halogen Free

Applications

AI Translation
  • Set-Top Boxes
  • LCD TVs
  • Home Networking Devices
  • Surveillance
  • General Purpose