20 V, 6 A, Synchronous, Step-Down DC-to-DC Regulator Features: Input voltage range: 4.5 V to 20 V Integrated MOSFET: 44 mΩ typical/11 mΩ typical Reference voltage: 0.6 V ± 1% Continuous output current: 6 A Programmable current-limit thresholdProgrammable switching frequency: 200 kHz to 1400 kHz Precision enable and power good External compensation Internal soft start with external adjustable option Startup into a precharged output Supported by ADIsimPower design tool

Ultralow Power Energy Harvester PMU with MPPT and Charge Management Features: Boost regulator with maximum power point tracking (MPPT) with dynamic sensing or no sensing mode Hysteresis mode for best ultralight load efficiency Operating quiescent current of SYS pin (VIN > VCBP ≥ VMINOP): 510 nA Sleeping quiescent current of SYS pin (VCBP < VMINOP): 390 nA Input voltage operating range: 0.08 V to 3.3 V Fast cold start from 380 mV (typical) with charge pump Programmable shutdown point on MINOP pin based on the input open circuit voltage (OCV) 150 mA regulated output from 1.5 V to 3.6 V Battery terminal charging threshold (2.2 V to 5.2 V) to support charging storage elements Optional BACK_UP power path management Radio frequency (RF) transmission conducive to shutting down the switcher temporarily via microcontroller unit (MCU) communication

50 mA/500 mA, High Efficiency, Ultralow Power Step-Down Regulator Features: Input start-up voltage range: 2.15 V to 6.50 V Operates down to 2.00 V voltage Ultralow 180 nA quiescent current with no load Selectable output voltage of 1.2 V to 3.6V or 0.8V to 5.0V ±1.5% output accuracy over full temperature range in PWM mode Selectable hysteresis mode or PWM operation mode Output current Up to 50 mA in hysteresis mode Up to 500 mA in PWM mode VOUTOK flag monitors the output voltage 100% duty cycle operation mode 2 MHz switching frequency with optional synchronization input from 1.5 MHz to 2.5 MHz QOD option UVLO, OCP, and TSD protection 9-ball, 1.65 mm × 1.87 mm WLCSP −40°C to +125°C junction temperature

50 mA/500 mA, High Efficiency, Ultralow Power Step-Down Regulator Features: Input start-up voltage range: 2.15 V to 6.50 V Operates down to 2.00 V voltage Ultralow 180 nA quiescent current with no load Selectable output voltage of 1.2 V to 3.6V or 0.8V to 5.0V ±1.5% output accuracy over full temperature range in PWM mode Selectable hysteresis mode or PWM operation mode Output current Up to 50 mA in hysteresis mode Up to 500 mA in PWM mode VOUTOK flag monitors the output voltage 100% duty cycle operation mode 2 MHz switching frequency with optional synchronization input from 1.5 MHz to 2.5 MHz QOD option UVLO, OCP, and TSD protection 9-ball, 1.65 mm × 1.87 mm WLCSP −40°C to +125°C junction temperature

Ultralow Power Step-Down Regulator with Input Voltage Monitor and Regulation Features: Input start-up voltage range: 2.15 V to 6.50 V  Operation down to 2.00 V  Ultralow, 260 nA quiescent current with no load Selective output voltage from 1.2 V to 3.6 V (or 0.8 V to 5.0 V) ±2.5% output accuracy over the full temperature range Selectable hysteresis or pulse-width modulation (PWM) operation mode Output current up to 50 mA in hysteresis mode VINOK flag to monitor the input voltage Ultrafast stop switching control 100% duty cycle operation mode Quick output discharge (QOD) option Undervoltage lockout (UVLO), OCP, and thermal shutdown (TSD) protection 10-lead, 3 mm × 3 mm LFCSP package −40°C to +125°C operating junction temperature range

Ultralow Power Step-Down Regulator with Input Voltage Monitor and Regulation Features: Input start-up voltage range: 2.15 V to 6.50 V  Operation down to 2.00 V  Ultralow, 260 nA quiescent current with no load Selective output voltage from 1.2 V to 3.6 V (or 0.8 V to 5.0 V) ±2.5% output accuracy over the full temperature range Selectable hysteresis or pulse-width modulation (PWM) operation mode Output current up to 50 mA in hysteresis mode VINOK flag to monitor the input voltage Ultrafast stop switching control 100% duty cycle operation mode Quick output discharge (QOD) option Undervoltage lockout (UVLO), OCP, and thermal shutdown (TSD) protection 10-lead, 3 mm × 3 mm LFCSP package −40°C to +125°C operating junction temperature range

Advanced Battery Management PMIC with Inductive Boost LED and Three LDO Regulators Features: Switching mode USB battery charger High accuracy and programmable charge terminal voltage and charge current 3 MHz buck for high efficiency and small footprint Tolerant input voltage from −0.5 V to +20 V (USB VVBUSx) Power path control allows system to operate with dead or missing battery Compliant with JEITA charge temperature specification Voltage-based state of charge (SOC) calculation algorithm Extra low quiescent current in sleep mode Battery impedance chemistry (Li-Ion) compensation Battery temperature compensation No need for external sense resistor Boost regulator with 5-channel LED driver Support up to 4 LED in series or in parallel 5 independent programmable LED current sinks 64 programmable LED current levels (up to 20 mA) Programmable on and off timer for LED blinking Adaptive headroom control to maximize the efficiency Three 150 mA linear LDO regulators Ultralow IQ with zero load at 1 μA typical for LDO1 Optional load-switch full turn-on mode Full I2C programmability with dedicated interrupt pin

40 V, 200 mA, Low Noise, CMOS LDO Linear Regulator Features: Low noise: 11 μV rms independent of fixed output voltage PSRR of 88 dB at 10 kHz, 68 dB at 100 kHz, 50 dB at 1 MHz, VOUT ≤ 5 V, VIN = 7 V Input voltage range: 2.7 V to 40 V Maximum output current: 200 mA Initial accuracy: ±0.8% Accuracy over line, load, and temperature −1.2% to +1.5%, TJ = −40°C to +85°C ±1.8%, TJ = −40°C to +125°C Low dropout voltage: 200 mV (typical) at a 200 mA load, VOUT = 5 V User programmable soft start (LFCSP and SOIC only) Low quiescent current, IGND = 50 μA (typical) with no load Low shutdown current: 1.8 μA at VIN = 6 V, 3.0 μA at VIN = 40 V Stable with a small 2.2 μF ceramic output capacitor Fixed output voltage options: 1.8 V, 2.5 V, 3.3 V, 3.8 V, and 5.0 V 15 standard voltages between 1.2 V and 5.0 V are available Adjustable output from 1.2 V to VIN – VDO, output can be adjusted above initial set point Precision enable 2 mm × 2 mm, 6-lead LFCSP, 8-Lead SOIC, 5-Lead TSOT AEC-Q100 qualified for automotive applications

Ultra-Low-Noise, High-Accuracy 4.096V Voltage Reference Features: Maximum temperature coefficient (TCVOUT): 0.8 ppm/°C (D grade 0°C to 70°C) 1 ppm/°C (C grade 0°C to 70°C) 2 ppm/°C (B grade −40°C to +125°C) 4 ppm/°C (A grade 40°C to +125°C) Output noise (0.1 Hz to 10 Hz): 1 μV p-p at VOUT of 2.048 V typical Initial output voltage error: B, C, D grade: ±0.02% (maximum) Input voltage range: 3 V to 15 V Operating temperature: A grade and B grade: −40°C to +125°C C grade: 0°C to +70°C Output current: +10 mA source/−10 mA sink Low quiescent current: 950 μA (maximum) Low dropout voltage: 300 mV at 2 mA (VOUT ≥ 3 V) 8-lead SOIC package and LCC package AEC-Q100 qualified for automotive applications Long-term drift: 8 ppm typical at 4500 hours

Ultra-Low-Noise, High-Accuracy 4.096V Voltage Reference Features: Maximum temperature coefficient (TCVOUT): 0.8 ppm/°C (D grade 0°C to 70°C) 1 ppm/°C (C grade 0°C to 70°C) 2 ppm/°C (B grade −40°C to +125°C) 4 ppm/°C (A grade 40°C to +125°C) Output noise (0.1 Hz to 10 Hz): 1 μV p-p at VOUT of 2.048 V typical Initial output voltage error: B, C, D grade: ±0.02% (maximum) Input voltage range: 3 V to 15 V Operating temperature: A grade and B grade: −40°C to +125°C C grade: 0°C to +70°C Output current: +10 mA source/−10 mA sink Low quiescent current: 950 μA (maximum) Low dropout voltage: 300 mV at 2 mA (VOUT ≥ 3 V) 8-lead SOIC package and LCC package AEC-Q100 qualified for automotive applications Long-term drift: 8 ppm typical at 4500 hours