SNVU815 October   2021 LP87564-Q1

 

  1.   Trademarks
  2. 1Introduction
  3. 2Sequencing
  4. 3Register Bits Loaded From OTP Memory

1 Introduction

This technical reference manual can be used as a reference for the LP87564T-Q1 default register bits after power up. This technical reference manual does not provide information about the electrical characteristics, external components, package, or the functionality of the device. For this information and the full register map, refer to the datasheet.

Table 1-1 provides the quick overview of each regulator default OTP settings. Sequencing provides an overview of default power up and power down sequence. Table 3-1 lists all the default OTP settings after power up.

Table 1-1 Main OTP Settings for regulators
DescriptionBit Name Value
Device identification OTP configuration OTP_ID 89h
BUCK0Output voltageBUCK0_VSET1100 mV
Enable (ENx pin or I2C register write)EN_BUCK0, EN_PIN_CTRL0, BUCK0_EN_PIN_SELECT EN_BUCK0 bit
Startup delayBUCK0_STARTUP_DELAY0 ms
Shutdown delayBUCK0_SHUTDOWN_DELAY0 ms
Force PWM BUCK0_FPWM Forced PWM
Peak current limitILIM05.0 A
Maximum load currentN/A4 A
Slew rateSLEW_RATE01.9 mV/us
BUCK1 Output voltage BUCK1_VSET 1100 mV
Enable (ENx pin or I2C register write) EN_BUCK1, EN_PIN_CTRL1, BUCK1_EN_PIN_SELECT EN_BUCK1 bit
Startup delay BUCK1_STARTUP_DELAY 0 ms
Shutdown delay BUCK1_SHUTDOWN_DELAY 0 ms
Force PWM BUCK1_FPWM Forced PWM
Peak current limit ILIM1 5.0 A
Maximum load current N/A 4 A
Slew rate SLEW_RATE1 1.9 mV/us
BUCK2 Output voltage BUCK2_VSET 1000 mV
Enable (ENx pin or I2C register write) EN_BUCK2, EN_PIN_CTRL2, BUCK2_EN_PIN_SELECT EN1 pin
Startup delay BUCK2_STARTUP_DELAY 0 ms
Shutdown delay BUCK2_SHUTDOWN_DELAY 0 ms
Force PWM BUCK2_FPWM Forced PWM
Peak current limit ILIM2 5.0 A
Maximum load current N/A 4 A
Slew rate SLEW_RATE2 1.9 mV/us
BUCK3 Output voltage BUCK3_VSET 1100 mV
Enable (ENx pin or I2C register write) EN_BUCK3, EN_PIN_CTRL3, BUCK3_EN_PIN_SELECT EN_BUCK3 bit
Startup delay BUCK3_STARTUP_DELAY 0 ms
Shutdown delay BUCK3_SHUTDOWN_DELAY 0 ms
Force PWM BUCK3_FPWM Forced PWM
Peak current limit ILIM3 5.0 A
Maximum load current N/A 4 A
Slew rate SLEW_RATE3 1.9 mV/us
Spread spectrum EN_SPREAD_SPEC Enabled
Switching frequency N/A 2 MHz
I2C addressN/A65h