RT6219BLGQW

RT6219BLGQW

Compare
Richtek USA Inc.
RT6219BLGQW
IC REG BUCK ADJUSTABLE 4A 10WDFN
No Datasheet
Compare

$2.74

Price update:a months ago
Available in stock: 476
45
Serves customers in 45 countries
1000+
Worldwide Manufacturers
$140M
$140M Growth in 5 Years
50.0M+
50M Parts Shipped in 5 Years
Richtek USA Inc.

Richtek USA Inc.

Founded in 1998, Richtek is one of the leading global analog semiconductor companies in design and development of comprehensive power management ICs for consumer electronics, computers, communications equipment, industrial and automotive products. After the completion of merger with MediaTek in 2016, Richtek has broadened the product range for more diverse applications. Richtek not only delivers the industry's innovative power management ICs, but also provides the complete system design in service and support. With Richtek as "Your Power Partner" you can spend less time trouble shooting issues with power management and more time working on your next big product.

View All Product from Richtek USA Inc.
RT6219BLGQW Products

The RT5779A/B is a simple, easy-to-use, 5A synchronous step-down DC-DC converter with an input supply voltage range of 2.5V to 6V. The device build-in an accurate 0.6V (±1.5%) reference voltage and can operate in 100% duty cycle as a very low dropout voltage regulator. the RT5779A/B integrates low RDS(ON) power MOSFETs to achieve high efficiency and is available in TSOT-23-8 (FC) package. The RT5779A/B adopts Advanced Constant On-Time (ACOT®) 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 RT5779A/B is designed to operate at 1.5MHz fixed frequency. While the RT5779A automatically enters power saving mode (PSM) operation at light load to maintain high efficiency. RT5779B operates in Forced PWM over the loading range, that helps meet tight voltage regulation accuracy requirements. The RT5779A/B senses both FETs current for a robust over-current protection. It prevents the device from the catastrophic damage in output short circuit, over current or inductor saturation. The individual enable control input and power good indicator provides flexible system power sequence control 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 (thermal shutdown) to provide safe and smooth operation in all operating conditions.

Feature

  • 5A Converter With Built-In 20mΩ/18mΩ Low RDS(ON) Power FETs
  • Input Supply Voltage Range : 2.5V to 6V
  • Output Voltage Range : 0.6V to 6V
  • Operates Up to 100% Duty Cycle
  • Advanced Constant On-Time (ACOTTM) Control ► Ultrafast Transient Response► No Needs For External Compensations► Optimized for Low-ESR Ceramic Output Capacitors
  • 0.6V ±1.5% High-Accuracy Feedback Reference Voltage
  • 35μA Operation Quiescent Current (RT5779A)
  • Robust Over-Current Protection for Both FETs
  • Optional for Operation Modes :► Power Saving Mode (PSM) (RT5779A)► Forced PWM Mode (RT5779B)
  • Fixed Switching Frequency : 1.5MHz
  • Monotonic Start-Up for Pre-Biased Output
  • Individual Enable Control Input
  • Power Good Indicator
  • Built-In Internally Fixed Soft-Start (Typ. 1.5ms)
  • 100% Duty Cycle Mode
  • Internal Output Discharge
  • Input Under-Voltage Lockout (UVLO)
  • Output Under-Voltage Protection (UVP) with Hiccup Mode
  • Over-Temperature Protection
  • Available in TSOT-23-8 (FC) Package

Applications

  • WLAN ASIC Power / Storage (SSD and HDD)
  • Mobile Phones and Handheld Devices
  • STB, Cable Modem, and xDSL Platforms
  • General Purpose for POL LV Buck Converter

Product Attributes

TYPE DESCRIPTION Select all
Voltage - Output (Min/Fixed) 0.6V
Series ACOT™
Voltage - Output (Max) 5V
Package Tape & Reel (TR)
Current - Output 4A
Product Status Active
Frequency - Switching 500kHz
Function Step-Down
Synchronous Rectifier Yes
Output Configuration Positive
Operating Temperature -40°C ~ 85°C (TA)
Topology Buck
Mounting Type Surface Mount
Output Type Adjustable
Package / Case 10-WFDFN Exposed Pad
Number of Outputs 1
Supplier Device Package 10-WDFN (3x3)
Voltage - Input (Min) 5V
Voltage - Input (Max) 23V

Blog

$2.74

Price update:a months ago
Available in stock: 476
Richtek USA Inc.

Richtek USA Inc.

Founded in 1998, Richtek is one of the leading global analog semiconductor companies in design and development of comprehensive power management ICs for consumer electronics, computers, communications equipment, industrial and automotive products. After the completion of merger with MediaTek in 2016, Richtek has broadened the product range for more diverse applications. Richtek not only delivers the industry's innovative power management ICs, but also provides the complete system design in service and support. With Richtek as "Your Power Partner" you can spend less time trouble shooting issues with power management and more time working on your next big product.

View All Product from Richtek USA Inc.

Blog