SNVU885 January   2024 LP87523-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Sequencing
  6. 3Register Bits Loaded From OTP Memory
  7. 4Revision History

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 LP875230E-Q1
BUCK0+BUCK1BUCK2BUCK3
ControlEN1 pinEN1 pinEN1 pin
Startup delay4ms0ms8ms
Shutdown delay12ms15ms8ms