Automotive dual 3-A buck converters & dual linear regulators for J6 entry processors
Product details
Parameters
Package | Pins | Size
Features
- AEC-Q100 Qualified With the Following Results:
- Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
- Input Voltage: 2.8 V to 5.5 V
- Two High-Efficiency Step-Down DC-DC Converters:
- Output Voltage: 0.7 V to 3.36 V
- Maximum Output Current 3 A
- Programmable Output-Voltage Slew Rate from 0.5 mV/µs to 10 mV/µs
- 2-MHz Switching Frequency
- Spread-Spectrum Mode and Phase Interleaving for EMI Reduction
- Two Linear Regulators:
- Input Voltage: 2.5 V to 5.5 V
- Output Voltage: 0.8 V to 3.3 V
- Maximum Output Current 300 mA
- Configurable General-Purpose Output Signals (GPO, GPO2)
- Interrupt Function with Programmable Masking
- Programmable Power-Good Signal (PGOOD)
- Output Short-Circuit and Overload Protection
- Overtemperature Warning and Protection
- Overvoltage Protection (OVP) and Undervoltage Lockout (UVLO)
- 28-pin, 5-mm × 5-mm VQFN Package with Wettable Flanks
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Description
The LP87332D-Q1 is designed to meet the power management requirements of the latest processors and platforms in automotive camera and radar applications. The device contains two step-down DC-DC converters and two linear regulators and general-purpose digital-output signals. The device is controlled by an I2C-compatible serial interface and by an enable signal.
The automatic PWM/PFM (AUTO mode) operation gives high efficiency over a wide output-current range. The LP87332D-Q1 supports remote voltage sensing to compensate IR drop between the regulator output and the point-of-load (POL) thus improving the accuracy of the output voltage. In addition the switching clock can be forced to PWM mode and also synchronized to an external clock to minimize the disturbances.
The LP87332D-Q1 device also supports programmable start-up and shutdown delays and sequences including GPO signals synchronized to the enable signal. During start-up and voltage change, the device controls the output slew rate to minimize output voltage overshoot and the in-rush current.
Same functionality and pinout but is not an equivalent to the compared device:
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | LP87332D-Q1 Dual High-Current Buck Converter and Dual Linear Regulator datasheet | Sep. 08, 2017 |
Application note | The Benefits of FlexPower PMIC Devices (Rev. B) | Nov. 23, 2020 | |
User guide | LP8733-Q1 and LP8732-Q1 User’s Guide to Power DRA71x, DRA79x, and TDA2E-17 (Rev. A) | Jul. 10, 2018 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The LP87332Q1EVM demonstrates the integrated circuit LP87332D-Q1 from Texas Instruments.
The LP87332D-Q1 has two high-performance step-down converters and two LDOs, designed to meet the power management requirements of the latest applications processors in automotive applications. The LP87332D-Q1 is (...)
Features
- Software Controller
- USB-TO-I²C interface supports 3.4 MHz clock rate on the I²C bus
- Versatile GUI: Output current measurement and status indicators
- Console application allows running scripts. Application can execute user specified scripts.
- Convenient test points for all I/O's
Design tools & simulation
Reference designs
Design files
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
VQFN (RHD) | 28 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
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