SNVSC48B October 2021 – June 2024 LP87745-Q1
PRODUCTION DATA
- 1
- 1Features
- 2Applications
- 3Description
- 4Description (continued)
- 5Pin Configuration and Functions
- 6Device and Documentation Support
- 7Revision History
- 8Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
- RXV|28
Thermal pad, mechanical data (Package|Pins)
Orderable Information
3 Description
The LP8774x-Q1 device is designed to meet the power management requirements of the AWR and IWR MMICs in various automotive and industrial radar applications. The device has three step-down DC/DC converters, a 5V boost converter and a 1.8V or 3.3V LDO. The LDO is powered from the boost and intended for xWR I/O supply. An SPI serial interface and enable signals control the device.
The step-down DC/DC converters support programmable switching frequency of 4.4MHz, 8.8MHz, or 17.6MHz. High switching frequency and low noise across wide frequency range enable LDO-free power solution with minimal or no passive filtering. The high switching frequency improves thermals and transient settling for the MMIC RF rails. The device forces the switching clock into PWM mode for optimal RF performance and can also be synchronized to an external clock. The device supports remote voltage sensing to compensate IR drop between the regulator output and the point-of-load (POL) which improves the accuracy of the output voltage.
| PART NUMBER(1) | PACKAGE | PACKAGE SIZE(2) | BODY SIZE (NOM) |
|---|---|---|---|
| LP8774x-Q1 | RXV (VQFN-HR, 28) | 4.50mm × 5.00mm | 4.50mm × 5.00mm |
Simplified Application