| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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4,472 pcs
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4472 pcs | On Request | 1 | On Request | On Request | 06+ | On Request | On Request | |
|
132 pcs
|
132 pcs | On Request | 1 | On Request | On Request | 1427+ | On Request | On Request |
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The Texas Instruments LP3971SQ-B410 is a multi-function, programmable Power Management Unit (PMU) optimized for low-power handheld applications. It integrates three DC/DC buck regulators and six low-dropout (LDO) linear regulators, along with a backup battery charger and two GPIOs.
The device supports programmable output voltages for both buck and LDO regulators, ranging from 0.725V to 3.3V for buck regulators and 1.0V to 3.3V for LDOs. It can deliver up to 1.6A of output current from the buck regulators and offers various current capabilities for the LDOs, including 300mA for LDO 1 and 30mA for the RTC LDO. The output voltage accuracy is ±3% for both regulator types.
Key features include an I2C-compatible high-speed serial interface for software control of regulator functions and settings, precision internal reference, thermal overload protection, and current overload protection. The LP3971SQ-B410 is housed in a compact 40-pin, 5x5 mm WQFN package, suitable for surface mounting.
This PMIC is designed for powering advanced application processors found in devices such as PDAs, smartphones, personal media players, and digital cameras. Its dynamic voltage management capabilities make it ideal for applications requiring efficient power control.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.75 | $0.75 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The input voltage range is 2.7 V to 5.5 V.
The operating temperature range is -40°C to 85°C.
It is available in a 40-WQFN (5 mm x 5 mm) package with exposed pad.
The buck converter can deliver up to 1.6 A.
It includes five LDOs with output currents of 300 mA, two at 150 mA, a fourth at 150 mA, and a fifth at 370 mA, plus a 30 mA LDO for RTC.
The typical quiescent current is 0.293 mA.
The switching frequency is up to 2000 kHz.