Ultralow Noise, 150 mA CMOS Linear Regulator Features: Chinese data sheet available Ultralow noise: 9 μV rms, independent of VOUT No additional noise bypass capacitor required Stable with 1 μF ceramic input and output capacitors Maximum output current: 150 mA Input voltage range: 2.2 V to 5.5 V Low quiescent current IGND = 10 μA with zero load Low shutdown current: <1 μA Low dropout voltage: 105 mV at 150 mA load Initial output voltage accuracy: ±1% Up to 14 fixed output voltage options: 1.8 V to 3.3 V PSRR performance of 70 dB at 10 kHz Current limit and thermal overload protection Logic-controlled enable 5-lead TSOT package 4-ball, 0.8 mm × 0.8 mm, 0.4 mm pitch WLCSP AEC-Q100 qualified for automotive applications

Programmable Hex Voltage Supervisor with EEPROM Features: Supervises 6 Power Supplies I2C Adjustable UV and OV Trip Points Guaranteed Threshold Accuracy: ±1% I2C/SMBus Interface Internal EEPROM 256 Programmable Thresholds per Channel Up to Three Range Settings per Channel Two General Purpose Inputs Three General Purpose Inputs/Outputs Programmable Output Delays Supply Voltage Range, 3.4V to 13.9V Supply Voltage Power Sharing from V1 to V4 16-Lead 5mm × 4mm DFN and SSOP Packages

Demonstration circuit 1697A features the LTC2945. The LTC2945 is a rail-to-rail system monitor that measures current, voltage, and power. It features an operating range of 2.7V to 80V and includes a shunt regulator for supplies above 80V to allow flexibility in the selection of input supply. The current common mode measurement range of 0V to 80V is independent of the input supply. An onboard 0.75% accurate 12-bit ADC measures load current, input voltage and an auxiliary external voltage. A 24-bit power value is generated by digitally multiplying the measured 12-bit load current and input voltage data. Minimum and maximum values are stored and an overrange alert with programmable thresholds minimizes the need for software polling. Data is reported via a standard I2C interface. The demo board is populated for a 5A application. This can be changed by populating R1 accordingly.

LDO VOLTAGE REGULATORS;

The ADP1974 is a constant frequency, voltage mode, synchronous, pulse-width modulation (PWM) controller for bidirectional dc-to-dc applications. The ADP1974 is designed for use in battery testing, formation, and conditioning applications with an external, high voltage field effect transistor (FET) half bridge driver, and an external control device such as the AD8450/AD8451. The device operates as a buck converter in battery charge mode and as a boost converter in discharge mode to recycle energy to the input bus.The ADP1974 high voltage VIN supply pin can withstand a maximum operating voltage of 60 V and reduces the need for additional system supply voltages. The ADP1974 has integrated features such as precision enable, internal and external synchronization control with programmable phase shift, programmable maximum duty cycle, dead time control, and peak hiccup current-limit protection. Additional protection features include soft start to limit input inrush current during startup, precision enable, and thermal shutdown (TSD). The ADP1974 also has a COMP pin to provide external control of the PWM duty cycle and a FAULT pin that can disable the DH and DL outputs. These functions are compatible with the AD8450/AD8451 analog front-end (AFE) error amplifiers.The ADP1974 is available in a 16-lead TSSOP package and is pin compatible with the ADP1972.Applications Single and multicell battery formation and testing? High efficiency battery test systems with recycle capability Battery conditioning (charging and discharging) systems Compatible with AD8450/AD8451 constant voltage (CV) and constant current (CC) analog front end error amplifier

Single Switch Synchronous Forward Controller Features: Synchronous Rectifier Control for High Efficiency Programmable Volt-Second Clamp Output Power Levels from 25W to 500W Low Current Start-Up (LT1952: 460µA; VIN On/Off = 14.25V/8.75V) (LT1952-1: 400µA; VIN On/Off = 7.75V/6.5V) True PWM Soft-Start Low Stress Short Circuit Protection Precision 107mV Current Limit Threshold Adjustable Delay for Synchronous Timing Accurate Shutdown Threshold with Programmable Hysteresis Programmable Slope Compensation Programmable Leading Edge Blanking Programmable Frequency (100kHz to 500kHz) Synchronizable to an External Clock up to 1.5 • fOSC Internal 1.23V Reference 2.5V External Reference Current Mode Control Small 16-Pin SSOP Package

Current, Voltage, and Charge Monitor forHigh Voltage Battery Packs Features: Measures Battery Stack Voltage, Current and Power Indicates Accumulated Battery Charge and Energy 20-Bit Current Measurement with <1μV Offset Built-In Isolated isoSPI™ or SPI Interface LTC68xx/ADBMS68xx Compatible, Supports Synchronous Measurements with Cell Monitors Up to 12 Buffered Voltage Measurement Inputs Up to 5 GPIOs, Configurable to Drive Ground, Supply or Toggling at 400kHz High or Low Side Current Sense 0.3% Current and Voltage Accuracy 1% Energy and Charge Accuracy True Average ADCs I2C EEPROM Interface to Store Board Calibration Factors Threshold Registers for all Measured Quantities Engineered for ISO26262 Compliant Systems Open Wire Detection on Input Pins Available in 48-Lead LQFP Package AEC-Q100 Qualified for Automotive Applications

Digital Controller for Power Supply Applications with PMBus Interface Features: −40°C to +125°C operation with EEPROM data retention of 15 years at 125°C PMBus Revision 1.2 compliant 32-bit password protection with command masking 64 address selections (16 base addresses, expandable to 64) 6 PWM control signals, 625 ps resolution Duty cycle double update rate Digital control loop (PID + additional pole or zero configurability) Programmable loop filters (CCM, DCM, low/normal temperature) Frequency synchronization Soft start and soft stop functionality Average and peak constant current mode External PN junction temperature sensing 4 GPIOs (2 GPIOs configurable as active clamp snubber PWMs) Fast line voltage feedforward Adaptive dead time compensation for improved efficiency Extended black box data recorder for fault recording See datasheet for additional features

Power Management IC Development Tools LTC2920-2CMS8 LTC1628CG LTC2920 with Dual DC to DC Converter, 7V to 24V Input, 5V @ 12A max = Vout1, 3.3V @ 12A max = Vout2

VOLTAGE REFERENCE SERIES 5V DIP-8; Voltage Reference Type:Series - Fixed; Product Range:-; Reference Voltage:5V; Initial Accuracy:0.3%; Temperature Coefficient:8.5ppm/ C; Voltage Reference Case Style:DIP; No. of Pins:8Pins; ;RoHS Compliant: No