General Description
The RTQ2079-QF is a highly integrated PMIC designed
for automotive camera applications. It includes three
step-down converters, one high PSRR low-dropout
(LDO) regulator, and one general low-dropout (LDO)
regulator.
The high-voltage step-down converter operates with an
input voltage range of up to 24V and is capable of
sustaining a 36V load dump. It is suitable for a direct
connection to a 12V battery or Power Over Coaxial
(PoC) connection.
The RTQ2079-QF offers overvoltage and undervoltage
monitors, two error input receivers, one error output
indicator, and fault status reported by I2C for system
fault reporting purpose.
The device offers system design flexibility with I2C or
factory-trimmed configurable functions, including
adjustable output voltage for each channel,
customizable power-on sequencing, and overvoltage
(OV) or undervoltage (UV) monitor threshold voltage.
The RTQ2079-QF is available in a WET-WQFN-24AL
4x4 package with wettable flanks.
The recommended junction temperature range is −40C
to 125C, and the ambient temperature range is −40C
to 125C.

Applications
⚫ Function Safety Related Automotive Camera
Modules
⚫ Surround View Cameras
⚫ Front View Cameras
⚫ Rear View Cameras
⚫ Dash Cams
⚫ Driver Monitoring Systems
⚫ Cabin Monitors
⚫ eMirrors

Features
⚫ AEC-Q100 Grade 1 Qualified
⚫ Compliance with ISO 26262 ASIL B
⚫ Power-On Built-In Self-Test (BIST) for OV/UV
Monitors, I2C Cyclic Redundancy Check (CRC),
and OTP Register CRC Protection
⚫ Three Step-Down Converters (HVBuck1,
LVBuck2, and LVBuck3) with Peak-Current Mode
PWM Operation and PSM Mode for Sentry Mode
via I
2C Setting
⚫ Fixed Switching Frequency at 2.1MHz
⚫ EMI Reduction Features including Spread
Spectrum and Phase-Shift Operation
⚫ HVBuck1 Supports Input Voltage from 4V to
24V with Load Dump Protection (36V for 
400ms Transient), Adjustable Output Voltage,
and up to 1.5A Output Current
⚫ LVBuck2 and LVBuck3 Support Input Voltage
from 2.7V to 5V, Adjustable Output Voltage,
and up to 1.5A Output Current
⚫ Pins Related to LVBuck2/LVBuck3 Can Float if
the Channel is Unused
⚫ Two Low-Dropout Regulators (LDO1 and LDO2)
⚫ LDO1 with 2.7V to 5V Input Voltage, Adjustable
Output Voltage, up to 0.3A Output Current, and
High PSRR with 0.1A Output Current (60dB at
100kHz, 40dB at 1MHz)
⚫ LDO2 with 2.7V to 5V Input Voltage, Adjustable
Output Voltage, and up to 0.4A Output Current
⚫ Input and Output Functions
⚫ Sequence Control for External IC via SEQOUT
⚫ Power Status Indication via PGOOD
⚫ Error Status Indication via ERROUT
⚫ Two Error Signal Receivers via
ERRIN1/ERRIN2
⚫ External Voltage Monitor via VMONIN
⚫ Small Form Factor
⚫ Wettable WET-WQFN-24AL 4x4 Package with
Compact BOM
⚫ Junction Temperature Range: −40C to 125C
⚫ Ambient Temperature Range: −40C to 125C