The TPS65251RHAR is a power management unit (PMU) featuring three synchronous buck converters designed for high efficiency and a wide input voltage range of 4.5V to 18V. Each converter can deliver continuous output currents of 3A for Buck 1 and 2A for Buck 2 and Buck 3, with maximum currents of 3.5A and 2.5A respectively. The output voltage is adjustable from 0.8V to near the input supply voltage using an external resistor divider. The device includes dedicated enable pins for each buck converter, allowing for sequencing and soft-start capabilities, which can be configured with external components. The switching frequency is adjustable from 300 kHz to 2.2 MHz, and synchronization to an external clock is possible. The TPS65251RHAR also features a power-good signal, adjustable current limits, and a light-load pulse skipping mode to enhance efficiency during low-power operation. This PMU is packaged in a 40-pin VQFN format, suitable for applications such as set-top boxes, Blu-ray players, DVRs, digital TVs, car audio/video systems, and security cameras. The operating temperature range is specified from -40°C to 125°C, making it suitable for a variety of environments.
PMU with 3 DC/DC Converters, up to 18Vin 40-VQFN -40 to 125
Switching Regulator, Current-mode, 3A, 2200kHz Switching Freq-Max, PQCC40
Manufacturer: Texas Instruments
Win Source Part Number: 034511-TPS65251RHAR
Packaging: Reel - TR
Mounting: SMD (SMT)
Output Type: Adjustable
Topology: Buck
Frequency - Switching: 300kHz to 2.2MHz
Number of Outputs: 3
Synchronous Rectifier: Yes
Output Current: 3A, 2A
Family Name: TPS65251
Categories: Integrated Circuits
Status: Active
Temperature Range - Operating: -40°C to 125°C (TJ)
Case / Package: 40-VQFN (6x6)
Purpose: Step-Down
Maximum Input Voltage: 18V
Nominal Output Voltage (Min/Fixed): 0.8V
Maximum Output Voltage: 18V
Minimum Input Voltage: 4.5V
Alternative Parts (Cross-Reference): TPS65251RHA; TPS65251RHAT;
Introduction Date: October 01, 2010
ECCN: EAR99
Country of Origin: Philippines
Estimated EOL Date: 2027
Halogen Free: Compliant
Is this a common-used part?: Yes
Popularity: High
Fake Threat In the Open Market: 31 pct.
Supply and Demand Status: Balance
Application Field: Used in Power Management
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| Texas Instruments | Rochester Electronics | Win Source Electronics | DigiKey | Lingto Electronic Limited | Quarktwin Technology Ltd. | Shenzhen Shengyu Electronics Technology Limited | VAST STOCK CO., LIMITED | ODG (Origin Data Global) | |
|---|---|---|---|---|---|---|---|---|---|
| Product Category | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators |
| Product Number | TPS65251RHAR | TPS65251RHAR | 034511-TPS65251RHAR | 296-27618-1-ND | TPS65251RHAR | TPS65251RHAR | TPS65251RHAR | TPS65251RHAR | TPS65251RHAR |
| Product Name | TPS65251 PMU with 3 DC/DC Converters, up to 18Vin | PMIC - PMIC - Voltage Regulators - DCDC Switching Regulators - TPS65251RHAR | Voltage Regulators - DC DC Switching Regulators | PMIC - Voltage Regulators - DC DC Switching Regulators | Voltage Regulators - DC DC Switching Regulators | Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators | Switching Voltage Regulators | Voltage Regulators - DC DC Switching Regulators | |
| Package Type | Other; VQFN | Other; VQFN40 | Other; 40-VQFN (6x6) | Other; 40-VFQFN Exposed Pad | Other; 40-VFQFN Exposed Pad | Other; 40-VFQFN Exposed Pad | |||
| Output Voltage | 0.8000 to 18 volts | 0.8000 volts | 0.8000 to 18 volts | 0.8000 to 18 volts | 0.8000 volts | 0.8000 volts | |||
| IOUT | 3 amps | 3 to 2 amps | 2 to 3 amps | 3 to 2 amps | 3 to 2 amps | 3 to 2 amps | 3 to 2 amps | ||
| VIN | 4.5 to 18 volts | 18 volts | 4.5 to 18 volts | 4.5 to 18 volts | 18 volts | ||||
| Operating Temperature | -40 to 125 C (-40 to 257 F) | -40 to 125 C (-40 to 257 F) | -40 to 125 C (-40 to 257 F) | -40 to 125 C (-40 to 257 F) | -40 to 125 C (-40 to 257 F) | -40 to 125 C (-40 to 257 F) |
