TPS51123RGET Texas Instruments Integrated Circuit (Other) In Stock
TPS51123RGET is a dual synchronous step-down controller with out-of-audio operation and 100mA LDO, featuring voltage-mode PWM control, 5.5V–28V input range, and adjustable output from 2V to 5.5V. From $1.94 in stock worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 24
- Lifecycle
- ACTIVE
- Datasheet
- TPS51123RGET Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.9380(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual synchronous step-down controller with out-of-audio operation eliminates audible noise in noise-sensitive notebook applications
- Integrated 100mA LDO provides auxiliary power rail for system logic, reducing external component count
- Wide input voltage range of 5.5V to 28V supports both 12V and 5V system rails with adjustable output from 2V to 5.5V
- Voltage-mode PWM control with precision feedback ensures tight output regulation across load transients
- 24-pin QFN (VQFN-24) compact package optimized for high-density notebook power supply designs
Applications
TPS51123RGET is designed for notebook and portable computer power management, providing dual-phase DC-DC conversion for CPU core and memory rails. It is also well-suited for industrial embedded systems and point-of-load power architectures requiring low-noise, high-efficiency step-down regulation with integrated LDO support.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | ALSO OPERATES AT 5V, OPERATES IN ADJUSTABLE MODE FROM 2V TO 5.5V |
| Analog IC - Other Type | DUAL SWITCHING CONTROLLER |
| Control Mode | VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 28V |
| Input Voltage-Min | 5.5V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | S-PQCC-N24 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Number of Outputs | 2 |
| Output Current-Max | 20A |
| Output Voltage-Max | 5.5V |
| Output Voltage-Min | 2V |
| Output Voltage-Nom | 3.3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 460kHz |
| Technology | BICMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Malaysia, Philippines |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TPS51123RGET:
Switching Controller, Voltage-mode, 20A, 460kHz Switching Freq-Max, BICMOS, PQCC24
Frequently Asked Questions
What is the input voltage range of TPS51123RGET?
The TPS51123RGET operates with an input voltage range of 5.5V to 28V, with a nominal input of 12V. It also supports operation at 5V input, making it compatible with both standard 12V ATX and 5V system rails in notebook and embedded power applications.
What output voltages can the TPS51123RGET regulate to?
The TPS51123RGET features adjustable output voltage operation from 2V to 5.5V per channel, enabling flexible configuration for CPU core, memory, or other system rails. Voltage-mode PWM control ensures accurate and stable output across varying load conditions.
What does the out-of-audio operation feature mean in TPS51123RGET?
Out-of-audio operation means the TPS51123RGET shifts its switching frequency above the audible range (typically above 20kHz) under light-load conditions, preventing coil whine or audible noise. This is critical for quiet notebook environments where acoustic noise must be minimized.
What package does the TPS51123RGET use and where can I buy it?
The TPS51123RGET comes in a 24-pin VQFN (QFN) compact surface-mount package. It is priced from approximately $1.94 and is available worldwide with global shipping. You can submit a quote request to confirm current stock and lead times.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $3.8760 | $3.88 |
| 3+ | $3.4000 | $10.20 |
| 5+ | $2.5194 | $12.60 |
| 21+ | $1.9380 | $40.70 |
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