800 mA Ultralow Noise, High PSRR, RF Linear Regulator Features: Input voltage range: 4.5 V to 16 V Maximum output current: 800 mA Adjustable output from 1.5 V to 5.1 V Low noise 1.0 μV rms total integrated noise from 100 Hz to 100 kHz 1.6 μV rms total integrated noise from 10 Hz to 100 kHz Noise spectral density: 1.7 nV√Hz from 10 kHz to 1 MHz Power supply rejection ratio (PSRR) at 400 mA load >90 dB from 1 kHz to 100 kHz, VOUT = 5 V >60 dB at 1 MHz, VOUT = 5 V Dropout voltage: 0.6 V at VOUT = 5 V, 800 mA load Initial voltage accuracy: ±1% Voltage accuracy over line, load and temperature: ±2% Quiescent current (IGND): 4.3 mA at no load Low shutdown current: 0.1 μA Stable with a 10 μF ceramic output capacitor 8-lead LFCSP package and 8-lead SOIC package

50 mA/500 mA, Ultralow Power Step-Down Regulator with Battery Voltage Monitor Features: Input supply voltage range: 2.15 V to 6.50 V Operates down to 2.00 V Ultralow 240 nA quiescent current with no load Selectable output voltages of 1.2 V to 3.6 V, or 0.8 V to 5.0 V ±1.5% output accuracy over the full temperature range in pulse-width modulation (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 VINOK flag to monitor input battery voltage 100% duty cycle operation mode 2 MHz switching frequency with optional synchronization input from 1.5 MHz to 2.5 MHz Quick output discharge (QOD) option UVLO, OCP, and TSD protection 9-ball, 1.65 mm × 1.87 mm WLCSP Junction temperature: −40°C to +125°C

3-Channel, Integrated Ultralow Power Solution with Dual Buck Regulators and Load Switch Features: Wide input voltage range: 2.7V to 15.0 V 700 nA quiescent current when EN1 = SYNC/MODE = low ±1.5% output accuracy over full temperature range in PWM mode 600 kHz (or 1.2 MHz) switching frequency with optional synchronization input from 400 kHz to 1.4 MHz Channel 1: 800 mA buck regulator Automatic PSM/PWM or forced PWM mode via factory fuse 100% duty cycle operation mode Adjustable/fixed output options via factory fuse Power-good flag Channel 2: ultralow power buck regulator Selectable hysteresis or PWM operation mode Output current up to 50 mA in hysteresis mode, 300 mA in PWM mode with 100% duty cycle operation mode Low noise at 0.8 V reference in PWM mode Adjustable/fixed output voltage options via factory fuse Channel 3: high-side load switch Low RDS(ON) of 494 mΩ at VOUT3 = 2.5 V Quick output discharge (QOD) option UVLO, OCP, and TSD protection 16-lead TSSOP_EP package −40°C to +125°C operational junction temperature

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

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

28 V, 200 mA, Low Noise, Linear Regulator Features: Low noise: 18 μV rms Power supply rejection ratio (PSRR): 66 dB at 10 kHz at VOUT = −3 V Positive or negative enable logic Stable with small 2.2 μF ceramic output capacitor Input voltage range: −2.7 V to −28 V Maximum output current: −200 mA Low dropout voltage: −185 mV at −200 mA load Initial accuracy: ±1% Accuracy over line, load, and temperature +2% maximum/−3% minimum Low quiescent current, IGND = −650 μA with −200 mA load Low shutdown current: −2 μA Adjustable output from −1.22 V to −VIN + VDO Current-limit and thermal overload protection 6- and 8-lead LFCSP and 5-lead TSOT Supported by ADIsimPower tool

Supervisory Circuits Watchdog Supervisor with MR. IC.

40A DC/DC Module Regulator Features: Stacked Inductor Acts as Heat Sink Wide Input Voltage Range: 4.7V to 15V 0.6V to 3.3V Output Voltage Range ±1.3% Total DC Output Voltage Error Over Line, Load and Temperature (–40°C to 125°C) Differential Remote Sense Amplifier for Precision Regulation Current Mode Control/Fast Transient Response Frequency Synchronization Parallel Current Sharing (Up to 240A) Internal or External Compensation 88% Efficiency (12VIN, 1VOUT) at 40A Overcurrent Foldback Protection 16mm × 16mm × 7.07mm BGA Package

High Efficiency Synchronous Step-Down Switching Regulator Features: Synchronizable/Programmable Fixed Frequency OPTI-LOOP™ Compensation Minimizes COUT ±1% Output Voltage Accuracy Dual N-Channel MOSFET Synchronous Drive Wide VIN Range: 4V to 36V Operation VOUT Range: 0.8V to 6V Internal Current Foldback Output Overvoltage Crowbar Protection Latched Short-Circuit Shutdown Timer with Defeat Option Very Low Dropout Operation: 99% Duty Cycle Forced Continuous Control Pin Optional Programmable Soft-Start Remote Output Voltage Sense Power Good Output (LTC1735F Only) Logic Controlled Micropower Shutdown: IQ < 25µA LTC1435 Pin Compatible with Minor Component Changes Available in 16-Lead Narrow SSOP, SO Packages and 20-Lead TSSOP Package (LTC1735F Only)

Dual 15A or Single 30A DC/DC Module Regulator Features: Dual 15A or Single 30A Output Wide Input Voltage Range: 4.5V to 20V 2.375VMIN with CPWR Bias Output Voltage Range: 0.6V to 5.5V ±1.5% Maximum Total DC Output Error Multiphase Current Sharing Differential Remote Sense Amplifier, Each Channel Current Mode Control/Fast Transient Response Up to 96% Efficiency Adjustable Switching Frequency (250kHz to 1MHz) Frequency Synchronization Overcurrent Foldback Protection Output Overvoltage Protection Internal or External Compensation Built-In Temperature Monitor Diode SnPb or RoHS Compliant Finish Thermally Enhanced (11.25mm × 15mm × 5.74mm) BGA Package Pin-Compatible with the LTM4646