Packaging information
| Package | Pins WQFN (RSG) | 28 |
| Operating temperature range (°C) -40 to 125 |
| Package qty | Carrier 4,500 | LARGE T&R |
Features for the LP8728C-Q1
- LP8728-Q1-C is an Automotive Grade Product that
is AECQ-100 Grade 1 Qualified - Four High Efficiency Step-Down DC-DC
Converters:- 93% Peak Efficiency (VIN = 5 V, VOUT = 3.3 V)
- Max Output Current 1 A
- Forced PWM Operation
- Soft-Start Control
- VOUT1 = 3.3 V
- VOUT2 = 1.2 V
- VOUT3 = 1.8 V or 2.65 V (pin selectable)
- VOUT4 = 1.8 V
- Separate Enable Inputs for each Converter Control
- Separate Power Good Outputs for each Converter
- Output Overcurrent and Input Overvoltage Protection
- Overtemperature Protection
- Undervoltage Lockout (UVLO)
Description for the LP8728C-Q1
The LP8728-Q1-C is a quad-output Power Management Unit (PMU), optimized for low-power FPGAs, microprocessors, and DSPs for automotive applications. This device integrates four highly efficient step-down DC-DC converters into one package. Each converter has high current capability and separate controls which allows flexibility to use the device in multiple applications. All the converters operate above the AM band with a fixed 3.2-MHz switching frequency. The high-side switch turn on time of each converter is phase shifted to minimize input current spikes.
Protection features include output short-circuit protection, switch current limits, input overvoltage protection, input undervoltage lockout, and thermal shutdown functions. During start-up, the device controls the output slew rate to minimize output voltage overshoot and the input inrush current.