4 Description (continued)

The LP8774x-Q1 device supports programmable start-up and shutdown delays and sequences which are

synchronized to the ENABLE signal. The sequences can also include GPO signals to control external regulators,

load switches, and processor reset. The default settings for the device are programmed into nonvolatile memory

(NVM). The device controls the output slew rate to minimize output voltage overshoot and in-rush current during

device start-up.

This data sheet applies to the superset device, including all register settings, as was validated and covers the

following generic part number LP8774x-Q1 with orderable part numbers LP8774xyzzRXVR Q1where:

LP8774xyzzRXVRQ1

R: tape and reel (3000 units/reel)

(other shipping options may be included in

future as this field is not specific to device or functional safety

performance)

RXV: package designator

zz: OTP part number variant: (A1, A3…etc.)

(OTP determines the default register values for OTP based customer configuration

registers)

y = platform (Fsw and BOM/performance optimized options (1, 2, or 3) where

o

1 : 17.6 MHz + full performance option or BOM/cost optimized option (radar)

o

2 : 8.8 MHz + full performance option or BOM/cost optimized option (radar)

o

3 : 4.4 MHz + full performance option (non-radar)

x = regulator configuration of device version (specified by how many buck, boost and VIO LDO option

is supported specific device version)

o

2: 3 buck regulators, VIO LDO regulator

o

3: 3 buck regulators

o

4: 3 buck regulators, boost regulator

o

5: 3 buck regulators, boost regulator, VIO LDO regulator

LP8774: device family and base part number

Q1: Automotive AEC-Q100 Qualified

Figure 4-1. LP8774x-Q1 Orderable Part Numbers Scheme

www.ti.com

LP87743-Q1, LP87744-Q1, LP87745-Q1

SNVSC48B – OCTOBER 2021 – REVISED JUNE 2024

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Product Folder Links: LP87743-Q1 LP87744-Q1 LP87745-Q1