Texas Instruments LP877432A8RXVRQ1
Manufacturer No:
LP877432A8RXVRQ1
Manufacturer:
Texas Instruments
Package:
Description:
Automotive, three 3A low-noise buck converter PMIC for radar MMICs
Quantity:
In Stock :1501
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Expected Shipping：Thu, May 28 - Fri, May 29, 2026
Lead Time：Inquire about availability
Date Code：Within 2 Years
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LP877432A8RXVRQ1 Information
Texas Instruments LP877432A8RXVRQ1 technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments LP877432A8RXVRQ1.
- Type
- Parameter
- Processor supplier
- Texas Instruments
- Processor name
- mmWave AWR, mmWave IWR
- Regulated outputs (#)
- 3
- Step-down DC/DC converter
- 3
- Vin (min) (V)
- 3
- Vin (max) (V)
- 4
- Vout (min) (V)
- 0.9
- Vout (max) (V)
- 1.8
- Iout (max) (A)
- 3
- TI functional safety category
- Functional Safety-Compliant
- Type
- Parameter
- Configurability
- Factory programmable, Software configurable
- Features
- Output Short-Circuit and Overload Protection, Overtemperature warning and protection, Overvoltage protection, SPI, UVLO
- Rating
- Automotive
- Operating temperature range (°C)
- -40 to 125
- Step-down DC/DC controller
- 0
- Step-up DC/DC controller
- 0
- Iq (typ) (mA)
- 0.02
- Switching frequency (max) (kHz)
- 19200
- Shutdown current (ISD) (typ) (µA)
- 20
- Switching frequency (typ) (kHz)
- 17600
Download datasheets and manufacturer documentation for Texas Instruments LP877432A8RXVRQ1.
Data sheet:
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.
The LP8774x-Q1 device supports programmable start-up and shutdown delays and sequences which are synchronized to the ENABLE signal. The sequences can also include GPO signals to control external regulators, load switches, and processor reset. The default settings for the device are programmed into nonvolatile memory (NVM). The device controls the output slew rate to minimize output voltage overshoot and in-rush current during device start-up.
- AEC-Q100 qualified with the following results:
- Device temperature grade 1: –40°C to +125°C ambient operating temperature
- Functional safety-compliant device
- Developed for functional safety applications
- Documentation available to aid ISO 26262 functional safety system design up to ASIL-C / SIL-2
- Input supply overvoltage and undervoltage monitoring
- Regulator output overvoltage and undervoltage monitoring
- Overvoltage and undervoltage monitoring for one external rail
- Q&A watchdog
- Level or PWM error signal monitor (ESM)
- BIST and CRC
- Input voltage: 3.3V nominal (3V to 4V range)
- Three low-noise step-down DC/DC converters:
- Output voltage: 0.9V to 1.9V, 0.8V (BUCK3), 0.82V (BUCK3)
- Maximum output current: 3A/ 3A/ 3A
- Switching frequency: 4.4MHz, 8.8MHz, and 17.6MHz
- 5V boost converter
- Maximum output current: 350mA
- 150mA LDO
- Output voltage 1.8V or 3.3V
- Output short-circuit and overload protection
- Input overvoltage protection (OVP) and undervoltage lockout (UVLO)
- Overtemperature warning and protection
- Serial peripheral interface (SPI)
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