The RT6541AGQW is a high-efficiency single synchronous buck PWM controller designed for stepping down high voltage batteries to low voltage supplies, specifically targeting CPU core, I/O, and chipset RAM applications in notebook computers. It features a voltage programming function that allows output voltage adjustment between 0.8V and 1.05V through digital inputs. The controller employs a constant-on-time PWM control scheme, enabling it to handle wide input/output voltage ratios and providing a rapid 100ns response to load transients. This device enhances efficiency by eliminating the need for a current-sense resistor, which is common in traditional current-mode controllers. It can drive large synchronous rectifier MOSFETs and operates in diode emulation mode under light load conditions. The RT6541AGQW supports a battery input range of 3V to 26V and includes built-in features such as over/under-voltage protection, thermal shutdown, and a power good indicator. It is packaged in a compact WDFN-14L 3x2 format, making it suitable for space-constrained applications.
IC REG CTRLR BUCK PWM WDFN-14
Win Source Part Number: 1111992-RT6541AGQW
Category: Integrated Circuits (ICs)>PMIC - Voltage Regulators - DC DC Switching Controllers
Package: Tape & Reel
Standard Package: 1,500
Mounting: SMD (SMT)
Output Type: Transistor Driver
Function: Step-Down
Topology: Buck
Frequency - Switching: 560kHz
Control Features: Current Limit, Dead Time Control, Enable, Frequency Control, Phase Control, Power Good, Soft Start
Number of Outputs: 1
Output Configuration: Positive
Synchronous Rectifier: Yes
Output Phases: 1
Clock Sync: No
Package / Case: 14-WFDFN Exposed Pad
Supplier Device Package: 14-WDFN (3x2)
Temperature Range - Operating: -40°C ~ 125°C (TJ)
Supply Voltage - Operating: 3V ~ 26V
ECCN: EAR99
Fake Threat In the Open Market: 65 pct.
MSL Level: 3 (168 Hours)
REACH Status: REACH Unaffected
HTSUS: 8542.39.0001
Mfr: Richtek USA Inc.
Other Names: 1028-RT6541AGQWCT,10
Buck Regulator Positive Output Step-Down DC-DC Controller IC 14-WDFN (3x2)
Buck Regulator Positive Output Step-Down DC-DC Controller IC 14-WDFN (3x2)
Buck Regulator Positive Output Step-Down DC-DC Controller IC 14-WDFN (3x2)
Buck Regulator Positive Output Step-Down DC-DC Controller IC 14-WDFN (3x2)
| ODG (Origin Data Global) | Win Source Electronics | DigiKey | Quarktwin Technology Ltd. | |
|---|---|---|---|---|
| Product Category | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators |
| Product Number | RT6541AGQW | 1111992-RT6541AGQW | 1028-RT6541AGQWTR-ND | RT6541AGQW |
| Product Name | DC DC Switching Controllers | Integrated Circuits (ICs) - PMIC - Voltage Regulators - DC DC Switching Controllers | DC DC Switching Controllers | DC DC Switching Controllers |
| Configuration / Function | Buck | Buck | Buck | |
| Package Type | Other; 14-WFDFN Exposed Pad | Other; Tape & Reel | Other; 14-WFDFN Exposed Pad | Other; 14-WFDFN Exposed Pad |
| VIN | 3 to 26 volts | 3 to 26 volts | ||
| fsw | 560 kHz | 560 kHz | 560 kHz | 560 kHz |
