S6BP401A
Power Management IC
for Automotive ADAS Platform
Quad Buck 2.1 MHz DC/DC Converter and Dual LDO with Watchdog Timer
S6BP401A is a power management IC, consists of quad buck 2.1 MHz DC/DC converter with built-in switching FETs, dual Low
Drop-out regulator (LDOs) and a digital windowed watchdog timer. Having the switching FETs built-in, S6BP401A realizes high
power conversion efficiency and high switching frequency up to 2.4 MHz. The internal FETs are capable to handle up to 3 A load. As
S6BP401A employs the current mode architecture, it has fast load transient response. Built-in output voltage setting resistors and
compensation circuits reduce BOM cost and component area.
Features
◼Quad Buck DC/DC Converter (DD1 to DD4)
VIN Input Range: 4.5 V to 5.5 V
Switching Frequency
External clock mode: 1.8 MHz to 2.4 MHz
Internal clock mode: 2.0 MHz to 2.2 MHz
Built-in Switching FETs up to 3 A
Built-in Output Voltage Setting Resistors
Built-in Compensation Circuits
◼Dual LDO (LD1, LD2)
VIN Input Voltage Range: 2.97 V to 5.5 V
Built-in Output Voltage Setting resistors
◼Power Good Monitor Output for each DC/DC Converters,
LDOs
◼Built-in Windowed Watchdog Timer (WDT)
◼Under Voltage Lockout (UVLO)
◼Thermal Shutdown (TSD)
◼Over Current Protection (OCP)
◼Over Voltage Protection (OVP)
◼Independent Enabling for each DC/DC Converters and LDOs
◼Load-independent Soft-Start
◼Built-in Discharge Resistors
◼Small 6 mm × 6 mm QFN-40 Package
◼AEC-Q100 compliant (Grade-1)
Block Diagram
S6BP401A : PMIC
5V
DC/DC converter
LDO
Power Good
Watch Dog
1.20 V to 1.575 V / 2 A
1.00 V to 1.275 V / 3 A
1.20 V to 2.575 V / 2 A
3.3 V to 3.4 V / 1 A
3.3 V to 3.4 V / 0.2 A
1.20 V to 2.875 V / 0.5 A
5
Applications
◼Automotive Applications
◼Advanced Driver Assistance Systems (ADAS)
◼Camera Systems such as Security Camera
◼Industrial Applications
Cypress Semiconductor Corporation
Document Number: 002-03341 Rev.*I
• 198 Champion Court • San Jose, CA 95134-1709 • 408-943-2600
Revised January 16, 2020
