SNVU860 april   2023 LP87523-Q1

 

  1.   Abstract
  2.   Trademarks
  3. 1Introduction
  4. 2Sequencing
  5. 3Register Bits Loaded From OTP Memory

Sequencing

Figure 2-1 shows the generic power up and power down timing diagram. Startup delay is the delay from the rising edge of ENABLE signal. Shutdown delay is the delay from the falling edge of ENABLE signal. Note that the ENABLE pin assignment/control method and exact power up and power down sequencing depends on the timing values defined in the OTP and specified in Table 2-1.

GUID-20230406-SS0I-DZC3-HDHN-CQQQZS34BL9C-low.svgFigure 2-1 Generic Startup and Shutdown Sequences of the Regulators
Table 2-1 Startup and Shutdown Sequencing for LP875230D-Q1
BUCK0+BUCK1BUCK2BUCK3
ControlEN1 pinEN1 pinEN1 pin
Startup delay6 ms4 ms2 ms
Shutdown delay0 ms2 ms4 ms