3-Phase, 600kHz, Synchronous Buck Switching Regulator Controller Features: 3-Phase Current Mode Controller with Onboard MOSFET Drivers ±5% Output Current Matching Optimizes Thermal Performance and Size of Inductors and MOSFETs Differential Amplifier Accurately Senses VOUT ±1% VREF Accuracy Over Temperature VOUT Range: 0.6V to 5.5V without Diffamp VOUT Range: 0.6V to (VCC – 1.2V) with Diffamp 250kHz to 600kHz Per Phase, PLL, Fixed Frequency PWM, Stage Shedding™ or Burst Mode® Operation OPTI-LOOP® Compensation Minimizes COUT Adjustable Soft-Start Current Ramping Short-Circuit Shutdown Timer with Defeat Option Overvoltage Soft Latch Adjustable Undervoltage Lockout Threshold Selectable Phase Output for Up to 12-Phase Operation Available in 5mm × 5mm QFN and 36-Pin Narrow (0.209') SSOP Packages

Dual Micropower Step-Up DC/DC Converter Features: Low Quiescent Current: 20µA in Active Mode <1µA in Shutdown Mode Operates with VIN as Low as 1.2V Low VCESAT Switches: 85mV at 70mA Uses Small Surface Mount Components High Output Voltage: Up to 34V Tiny 10-Pin MSOP Package

Dual, 550kHz, 2-Phase Synchronous Step-Down Switching Regulator Features: Dual, 180° Phased Controllers Reduce Required Input Capacitance and Power Supply Induced Noise OPTI-LOOP® Compensation Minimizes COUT ±1% Output Voltage Accuracy Power Good Output Voltage Indicator Phase-Lockable Fixed Frequency 250kHz to 550kHz Dual N-Channel MOSFET Synchronous Drive Wide VIN Range: 3.5V to 36V Operation Very Low Dropout Operation: 99% Duty Cycle Adjustable Soft-Start Current Ramping Foldback Output Current Limiting Latched Short-Circuit Shutdown with Defeat Option Output Overvoltage Protection Remote Output Voltage Sense Low Shutdown IQ : 20µA 5V and 3.3V Regulators 3 Selectable Operating Modes: Constant-Frequency, Burst Mode® Operation and PWM Available in 32-Pin 5mm x 5mm QFN and 28-Pin SSOP Packages

USB Compatible Lithium-Ion Battery Charger with Thermal Regulation Features: Charges Single-Cell Li-Ion Batteries Directly from USB Port Thermal Regulation Maximizes Charging Rate without Risk of Overheating* Programmable Charge Current with ±7% Accuracy Low Dropout Operation No External MOSFET, Sense Resistor or Blocking Diode Required Programmable Charge Termination Timer Preset Charge Voltage with ±1% Accuracy C/10 Charge Current Detection Output AC Present Logic Output 25µA Supply Current in Shutdown Mode Automatic Recharge Tiny Thermally Enhanced 10-Pin MSOP Package Charge Current Monitor Useful for Gas Gauging* Thermistor Input for Temperature Qualified Charging

Photoflash Capacitor Chargers in ThinSOT Features: Highly Integrated IC Reduces Solution Size Uses Small Transformers: 5.8mm × 5.8mm × 3mm Fast Photoflash Charge Times: 4.6s for LT3468 (0V to 320V, 100µF, VIN = 3.6V) 5.7s for LT3468-2 (0V to 320V, 100µF, VIN = 3.6V) 5.5s for LT3468-1 (0V to 320V, 50µF, VIN = 3.6V) Controlled Input Current: 500mA (LT3468) 375mA (LT3468-2) 225mA (LT3468-1) Supports Operation from Single Li-Ion Cell, or Any Supply from 2.5V up to 16V Adjustable Output Voltage No Output Voltage Divider Needed Charges Any Size Photoflash Capacitor Low Profile (<1mm) SOT-23 Package

Dual 2-Phase, No RSENSE, Synchronous Controller with Output Tracking Features: No Current Sense Resistors Required Out-of-Phase Controllers Reduce Required Input Capacitance Tracking Function Wide VIN Range: 2.75V to 9.8V Constant Frequency Current Mode Operation 0.6V ±1.5% Voltage Reference Low Dropout Operation: 100% Duty Cycle True PLL for Frequency Locking or Adjustment Selectable Burst Mode®/Forced Continuous Operation Auxiliary Winding Regulation Internal Soft-Start Circuitry Power Good Output Voltage Monitor Output Overvoltage Protection Micropower Shutdown: IQ = 9µA Tiny Low Profile (4mm × 4mm) QFN and Narrow SSOP Packages

300mA Micropower VLDO Linear Regulator Features: Wide Input Voltage Range: 0.9V to 5.5V Stable with Ceramic Capacitors Very Low Dropout: 45mV at 300mA Adjustable Output Range: 0.4V to 3.6V ±2% Voltage Accuracy over Temperature Supply Load Low Noise: 80μVRMS (10Hz to 100kHz) BIAS Voltage Range: 2.5V to 5.5V Fast Transient Recovery Shutdown Disconnects Load from VIN and VBIAS Low Operating Current: IIN = 4μA, IBIAS = 50μA Typ Low Shutdown Current: IIN = 1μA, IBIAS = 0.01μA Typ Output Current Limit Thermal Overload Protection Available in 6-Lead (2mm × 2mm) DFN Package

1.4A, 500kHz Step-Down Switching Regulator Features: Wide Input Range: 3.6V to 36V Short-Circuit Protected Over Full Input Range 1.9A Guaranteed Minimum Switch Current 5V at 1.4A from 10V to 36V Input 3.3V at 1.4A from 7V to 36V Input 5V at 1.2A from 6.3V to 36V Input 3.3V at 1.2A from 4.5V to 36V Input Output Adjustable Down to 1.20V 500kHz Fixed Frequency Operation Soft-Start Uses Small Ceramic Capacitors Internal or External Compensation Low Shutdown Current: <2µA Thermally Enhanced 8-Lead MSOP Package

600mA Low VIN Buck Regulator in 3mm 3mm DFN Features: 1.6V to 5.5V Input Voltage Range Internal Soft-Start Selectable 1.7MHz or 2.6MHz Constant Frequency Operation Internal Oscillator can be Synchronizable to an External Clock, 1MHz to 3MHz Range High Efficiency: Up to 95% Very Low Quiescent Current: Only 65µA During Burst Mode® Operation 600mA Output Current (VIN = 1.8V, VOUT = 1.2V) 750mA Peak Inductor Current No Schottky Diode Required Low Dropout Operation: 100% Duty Cycle 0.613V Reference Voltage Stable with Ceramic Capacitors Shutdown Mode Draws <1µA Supply Current Current Mode Operation for Excellent Line and Load Transient Response Overtemperature Protection Available in a Low Profile (0.75mm) 8-Lead (3mm × 3mm) DFN Package

Dual 2-Phase, No RSENSE,Synchronous Controller for DDR/QDR Memory Termination Features: No Current Sense Resistors Required Out-of-Phase Controllers Reduce Required Input Capacitance VOUT2 Tracks 1/2 VREF Symmetrical Source/Sink Output Current Capability (VOUT2) Spread Spectrum Operation (When Enabled) Wide VIN Range: 2.75V to 9.8V Constant Frequency Current Mode Operation 0.6V ±1.5% Voltage Reference (VOUT1) Low Dropout Operation: 100% Duty Cycle True PLL for Frequency Locking or Adjustment Internal Soft-Start Circuitry Power Good Output Voltage Monitor Output Overvoltage Protection Micropower Shutdown: IQ = 9µA Tiny Low Profile (4mm × 4mm) QFN and Narrow SSOP Packages