TPS51123RGET
Active4.5-V TO 28-V DUAL-CHANNEL SYNCH BUCK CONTROLLER, LOW STANDBY CURRENT CONSUMPTION, OUT-OF-AUDIO™
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TPS51123RGET
Active4.5-V TO 28-V DUAL-CHANNEL SYNCH BUCK CONTROLLER, LOW STANDBY CURRENT CONSUMPTION, OUT-OF-AUDIO™
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Technical Specifications
Parameters and characteristics for this part
| Specification | TPS51123RGET |
|---|---|
| Frequency - Switching | 460 kHz |
| Mounting Type | Surface Mount |
| Number of Outputs | 4 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 24-VFQFN Exposed Pad |
| Supplier Device Package | 24-VQFN (4x4) |
| Topology | Step-Down (Buck) Synchronous (2), Linear (LDO) (2) |
| Voltage - Supply [Max] | 28 V |
| Voltage - Supply [Min] | 5.5 V |
| Voltage/Current - Output 1 | Controller |
| Voltage/Current - Output 2 | Controller |
| Voltage/Current - Output 3 | 3.3 V, 100 mA |
| w/LED Driver | False |
| w/Sequencer | False |
| w/Supervisor | False |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 7.81 | |
| 10 | $ 5.35 | |||
| 25 | $ 4.71 | |||
| 100 | $ 4.00 | |||
| Digi-Reel® | 1 | $ 7.81 | ||
| 10 | $ 5.35 | |||
| 25 | $ 4.71 | |||
| 100 | $ 4.00 | |||
| Tape & Reel (TR) | 250 | $ 3.36 | ||
| 500 | $ 3.16 | |||
| 750 | $ 3.06 | |||
| 1250 | $ 2.95 | |||
| 1750 | $ 2.88 | |||
| 2500 | $ 2.83 | |||
| Texas Instruments | SMALL T&R | 1 | $ 5.04 | |
| 100 | $ 4.11 | |||
| 250 | $ 3.23 | |||
| 1000 | $ 2.74 | |||
Description
General part information
TPS51123A Series
The TPS51123A is a cost effective, dual-synchronous buck controller targeted for notebook system power supply solutions. It provides 5-V and 3.3-V LDOs and requires few external components. The TPS51123A supports high-efficiency, fast transient responses and provides a combined power-good signal. Out-of-Audio mode light-load operation enables low acoustic noise at much higher efficiency than conventional forced PWM operation. Adaptive on-time D-CAP control provides convenient and efficient operation. The part operates with supply input voltages ranging from 5.5 V to 28 V and supports output voltages from 2 V to 5.5 V. The TPS51123A is available in a 24-pin QFN package and is specified from -40°C to 85°C ambient temperature range.
The TPS51123A is a cost effective, dual-synchronous buck controller targeted for notebook system power supply solutions. It provides 5-V and 3.3-V LDOs and requires few external components. The TPS51123A supports high-efficiency, fast transient responses and provides a combined power-good signal. Out-of-Audio mode light-load operation enables low acoustic noise at much higher efficiency than conventional forced PWM operation. Adaptive on-time D-CAP control provides convenient and efficient operation. The part operates with supply input voltages ranging from 5.5 V to 28 V and supports output voltages from 2 V to 5.5 V. The TPS51123A is available in a 24-pin QFN package and is specified from -40°C to 85°C ambient temperature range.
Documents
Technical documentation and resources
