TPS62867 Texas Instruments Integrated Circuit (Other) In Stock
The TPS62867 is a Texas Instruments synchronous step-down (buck) converter accepting 2.4 V to 5.5 V input and delivering up to 4 A or 6 A output current depending on the variant. It offers high efficiency at light loads via a low-power mode and integrates both power switches in a compact package. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 9
- Lifecycle
- ACTIVE
- Datasheet
- TPS62867 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TPS62867?
- 2.4 V to 5.5 V wide input range supports single-cell Li-ion to USB 5 V applications in a single design
- Up to 6 A output current in a compact integrated switch package enables dense multi-rail power solutions
- Automatic power-save mode (PSM) maintains high efficiency at light loads typical in IoT and wearable standby states
- Synchronous rectification with integrated high-side and low-side MOSFETs eliminates external Schottky diode and reduces BOM cost
What is TPS62867 used for?
The TPS62867 is designed for point-of-load power conversion in portable electronics, wearables, and IoT devices where the input is a single-cell Li-ion battery (2.4 V to 4.35 V) or a 5 V USB power supply. Its 4 A to 6 A output capability supports processor core rails, memory supplies, and multi-channel sensor arrays requiring tightly regulated low-voltage rails from a single buck stage. The integrated switches and automatic light-load efficiency make it suitable for always-on applications that alternate between active 6 A bursts and microamp standby currents.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TPS62867 datasheet?
TPS62867 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TPS62867?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
Can the TPS62867 power a processor core rail from a single-cell Li-ion battery throughout its full discharge range?
Yes. The TPS62867 accepts input voltages from 2.4 V to 5.5 V, which covers the full discharge range of a single-cell Li-ion battery from 4.2 V fully charged down to 2.5 V at near-depletion. A processor core rail of 1.0 V or 1.8 V remains regulated across the entire battery voltage range, ensuring the CPU or application processor does not brown-out during a discharge cycle even at full-load current of 4 A.
How does the TPS62867 maintain efficiency at light load in a wearable device standby state?
The TPS62867 automatically enters power-save mode (PSM) when the output current drops below a threshold of approximately 100 mA to 200 mA, switching to pulse-frequency modulation with very short on-times to maintain the output voltage. In PSM the quiescent current drops to tens of microamps, compared to several milliamps in continuous conduction mode. For a wearable in standby drawing 5 mA from the 1.8 V rail, PSM can improve converter efficiency from under 60% to above 85%, extending battery life by hours.
What output voltage range can the TPS62867 regulate to from a 5 V USB input?
From a 5 V USB input, the TPS62867 can regulate its output to voltages as low as approximately 0.6 V to 0.8 V (depending on feedback resistor configuration) up to just below the input voltage. Common output rails of 1.0 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, and 3.3 V are all achievable within the 4 A to 6 A current rating, making the TPS62867 suitable as a multi-purpose point-of-load regulator for FPGAs, application processors, and DDR memory supplies powered from USB 5 V.
How does the TPS62867 compare to a discrete buck converter design using an external controller and MOSFETs?
The TPS62867 integrates the high-side and low-side power MOSFETs, gate driver, oscillator, compensation, and protection circuits into a single IC, while a discrete design requires 5 to 8 additional components including two MOSFETs, a gate driver IC, bootstrap capacitor, and compensation network. The integrated solution reduces PCB area by approximately 40% to 60% and shortens design time from several days to hours. The trade-off is slightly reduced ability to customise switching frequency or dead-time, which is acceptable for the majority of 4 A to 6 A applications within the 2.4 V to 5.5 V input range.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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