General Description

BD71850MWV is a programmable Power Management

IC (PMIC) for powering single-core, dual-core, and

quad-core SoC’s such as NXP-i.MX 8M Nano. It is

optimized for low BOM cost and compact solution

footprint. It integrates 6 Buck regulators and 6 LDO’s to

provide all the power rails required by the SoC and the

commonly used peripherals.

QFN package and pinout support low cost Type 3

(non-HDI) PCB. Programmable power sequencing

and output voltages, flexible power state control for

easier system design and supports a wide variety of

processors and system implementations.

Features

6 Buck Regulators

 2.0 MHz Switching Frequency.

(BUCK1, BUCK2, BUCK5, BUCK7, and BUCK8).

 1.5MHz Switching Frequency. (BUCK6)

 Target Efficiency: 83 to 95.

 Output Current & Voltage.

BUCK1: 3.0 A, 0.7 V to 1.3 V/10 mV step, DVS

BUCK2: 3.0 A, 0.7 V to 1.3 V/10 mV step, DVS

BUCK5: 3.0 A, 0.70 V to 1.35 V/8steps, DVS

BUCK6: 3.0 A, 2.6 V to 3.3 V/100 mV step

BUCK7: 1.5 A, 1.605 V to 1.995 V/8steps

BUCK8: 3.0 A, 0.8 V to 1.4 V/10 mV step

6ch Linear Regulators (6 LDOs)

 LDO1: 10 mA, 3.0 V to 3.3 V, 1.6 V to 1.9 V

 LDO2: 10 mA, 0.9 V, 0.8 V

 LDO3: 300 mA, 1.8 V to 3.3 V

 LDO4: 250 mA, 0.9 V to 1.8 V

 LDO5: 300 mA, 0.8 V to 3.3 V

 LDO6: 300 mA, 0.9 V to 1.8 V

Power Mux Switch

 1.8V Input: 500 mΩ(Max)

 3.3V Input: 500 mΩ(Max)

32.768 kHz Crystal Oscillator Driver

Power Button Detector

Protection and Monitoring: Soft Start, Power Rails Fault

Detection, UVLO, OVP and TSD

OTP Configurable Power Sequencing

OTP and Software Programmable Output Voltage,

Ramp rates.

Hardware Signaling with SoC for Transition into or out

of Low Power States

Interfaces:

 I2C: 100 kHz/400 kHz, 1 MHz

 Power-on Reset Output: POR_B, RTC_RESET_B,

 Watchdog Reset Input: WDOG_B:

 Power State Control:

PMIC_STBY_REQ, PMIC_ON_REQ, PWRON_B

 Interrupt to SoC: IRQ_B

Type3 PCB Applicable

Applications

 Streaming Media Boxes and Dongles

 AV Receivers and Wireless Sound Bars

 Industrial HMI, SBC, IPC and Panel Computer