36V 10W No-Opto Isolated Flyback Converter Features: 4V to 36V Input Voltage Range 3.6A, 65V Internal DMOS Power Switch Low Quiescent Current Quasi-Resonant Boundary Mode Operation at Heavy Load Low Ripple Burst Mode® Operation at Light Load Minimum Load < 0.5% (Typ) of Full Output No Transformer Third Winding or Opto-Isolator Required for Output Voltage Regulation Accurate EN/UVLO Threshold and Hysteresis Temperature Compensation for Output Diode Output Short-Circuit Protection Thermally Enhanced 8-Lead SO Package

Micropower, Regulated Charge Pump DC/DC Converters Features: 5V Output Current: 100mA (VIN ≥ 3V) 3.3V Output Current: 80mA (VIN ≥ 2.5V) Ultralow Power: 20µA Quiescent Current Regulated Output Voltage: 3.3V ±4%, 5V ±4%, ADJ VIN Range: 2V to 5.5V 800kHz Switching Frequency No Inductors Very Low Shutdown Current: <2µA Shutdown Disconnects Load from VIN PowerGood/Undervoltage Output Adjustable Soft-Start Time Short-Circuit/Thermal Protection Available in 8-Pin MSOP

20-Bit Power No Latency ADC in SO-8 Features: 20-Bit ADC in SO-8 Package 8ppm INL, No Missing Codes at 20 Bits 4ppm Full-Scale Error 0.5ppm Offset 1.2ppm Noise Digital Filter Settles in a Single Cycle. Each Conversion Is Accurate, Even After an Input Step Fast Mode: 16-Bit Noise, 12 Bits TUE at 100sps Internal Oscillator—No External Components Required 110dB Min, 50Hz/60Hz Notch Filter Reference Input Voltage: 0.1V to VCC Live Zero—Extended Input Range Accommodates 12.5% Overrange and Underrange Single Supply 2.7V to 5.5V Operation Low Supply Current (200µA) and Auto Shutdown Pin Compatible with 24-Bit LTC2400

Lithium-Ion Battery Pulse Chargers with Overcurrent Protection Features: Complete Pulse Charger for 1-Cell Lithium-Ion Batteries Sense Resistor Limits Maximum Current for Safety 1% Float Voltage Accuracy End-of-Charge (C/10) Detection Output Programmable Charge Termination Timer Internal 0.35 NMOS Switch No Blocking Diode Required SEL Pin to Set Either 4.1V or 4.2V/Cell (LTC1730-4) Low-Battery Drain (1µA Max) when Input Supply Is Removed Battery Temperature Sensing and Charge Qualification Automatic Trickle Charge for Low-Battery Cell Automatic Battery Refresh

Wide Operating Range, No RSENSE Step-Down Controller Features: Wide VIN Range: 4V to 36V Sense Resistor Optional True Current Mode Control 2% to 90% Duty Cycle at 200kHz tON(MIN) ≤ 100ns Stable with Ceramic COUT Dual N-Channel MOSFET Synchronous Drive Power Good Output Voltage Monitor ±1% 0.6V Reference Adjustable Current Limit Adjustable Switching Frequency Programmable Soft-Start Output Overvoltage Protection Optional Short-Circuit Shutdown Timer Micropower Shutdown: IQ ≤ 30µA Available in a 1mm 20-Lead TSSOP Package

RF Power Detector with Buffered Output and >40dB Dynamic Range Features: Internal Schottky Diode RF Detector with Two Input Power Ranges: LTC5505-1, –28dBm to 18dBm LTC5505-2, –32dBm to 12dBm Wide Input Frequency Range: 300MHz to 3GHz (LTC5505-1); 300MHz to 3.5GHz (LTC5505-2) Temperature Compensated Buffered Detector Output Wide VCC Range of 2.7V to 6V Low Operating Current: 0.5mA Low Shutdown Current: <2µA Low Profile (1mm) ThinSOT™ Package

RF Power Detector with Buffered Output and >40dB Dynamic Range Features: Internal Schottky Diode RF Detector with Two Input Power Ranges: LTC5505-1, –28dBm to 18dBm LTC5505-2, –32dBm to 12dBm Wide Input Frequency Range: 300MHz to 3GHz (LTC5505-1); 300MHz to 3.5GHz (LTC5505-2) Temperature Compensated Buffered Detector Output Wide VCC Range of 2.7V to 6V Low Operating Current: 0.5mA Low Shutdown Current: <2µA Low Profile (1mm) ThinSOT™ Package

Wide Input Range, No RSENSE Current Mode Boost, Flyback and SEPIC Controller Features: High Efficiency (No Sense Resistor Required) Wide Input Voltage Range: 2.5V to 36V Current Mode Control Provides Excellent Transient Response High Maximum Duty Cycle (92% Typ) ±2% RUN Pin Threshold with 100mV Hysteresis ±1% Internal Voltage Reference Micropower Shutdown: IQ = 10μA Programmable Operating Frequency (50kHz to 1MHz) with One External Resistor Synchronizable to an External Clock Up to 1.3 × fOSC User-Controlled Pulse Skip or Burst Mode® Operation Internal 5.2V Low Dropout Voltage Regulator Output Overvoltage Protection Capable of Operating with a Sense Resistor for High Output Voltage Applications Small 10-Lead MSOP Package

2-Phase, Low Input Voltage, Dual Step-Down DC/DC Controller Features: Out-of-Phase Controllers Reduce Required Input Capacitance True PLL for Frequency Locking or Frequency Adjustment Operating Frequency Range: 300kHz to 750kHz Wide VIN Range: 2.5V to 10V Constant Frequency Current Mode Architecture Low Dropout: 100% Duty Cycle Power Good Output Voltage Monitor Internal Soft-Start Circuitry Selectable Burst Mode®/Pulse Skipping Operation at Light Loads Output Overvoltage Protection Low Quiescent Current: 460µA 0.8V ±2% Voltage Reference Small 16-Lead Narrow SSOP Package

Precision Micropower RMS-to-DC Converter Features: Simple to Use, Requires One Capacitor True RMS DC Conversion Using Σ Technology High Accuracy: 0.1% Gain Accuracy from 50Hz to 1kHz 0.25% Total Error from 50Hz to 1kHz High Linearity: 0.02% Linearity Allows Simple System Calibration Low Supply Current: 155μA Typ, 170μA Max Ultralow Shutdown Current: 0.1μA Constant Bandwidth: Independent of Input Voltage 800kHz –3dB, 6kHz ±1% Flexible Supplies: 2.7V to 5.5V Single Supply Up to ±5.5V Dual Supply Flexible Inputs: Differential or Single-Ended Rail-to-Rail Common Mode Voltage Range Up to 1VPEAK Differential Voltage Flexible Output: Rail-to-Rail Output Separate Output Reference Pin Allows Level Shifting Wide Temperature Range: –55°C to 125°C Small Size: Space Saving 8-Pin MSOP Package