2.25MHz, 300mA Synchronous Step-Down Regulator in SC70 Features: High Efficiency: Up to 96% Low Ripple (20mVP-P) Burst Mode Operation: IQ 26µA Low Output Voltage Ripple 300mA Output Current at VIN = 3V 380mA Minimum Peak Switch Current 2.5V to 5.5V Input Voltage Range 2.25MHz Constant Frequency Operation No Schottky Diode Required Low Dropout Operation: 100% Duty Cycle Stable with Ceramic Capacitors 0.8V Reference Allows Low Output Voltages Shutdown Mode Draws < 1µA Supply Current ±2% Output Voltage Accuracy Current Mode Operation for Excellent Line and Load Transient Response Overtemperature Protected Available in Low Profile SC70 Package

2.25MHz, 300mA Synchronous Step-Down Regulator in SC70 Features: High Efficiency: Up to 96% Low Ripple (20mVP-P) Burst Mode Operation: IQ 26µA Low Output Voltage Ripple 300mA Output Current at VIN = 3V 380mA Minimum Peak Switch Current 2.5V to 5.5V Input Voltage Range 2.25MHz Constant Frequency Operation No Schottky Diode Required Low Dropout Operation: 100% Duty Cycle Stable with Ceramic Capacitors 0.8V Reference Allows Low Output Voltages Shutdown Mode Draws < 1µA Supply Current ±2% Output Voltage Accuracy Current Mode Operation for Excellent Line and Load Transient Response Overtemperature Protected Available in Low Profile SC70 Package

1.25A, 4MHz, Synchronous Step-Down DC/DC Converter Features: Small 10-Lead MSOP or DFN Package Uses Tiny Capacitors and Inductor High Frequency Operation: Up to 4MHz High Switch Current: 1.6A Low RDS(ON) Internal Switches: 0.110Ω High Efficiency: Up to 95% Stable with Ceramic Capacitors Current Mode Operation for Excellent Line and Load Transient Response Short-Circuit Protected Low Dropout Operation: 100% Duty Cycle Low Shutdown Current: IQ ≤ 1μA Low Quiescent Current: 60µA Output Voltages from 0.8V to 5V Selectable Burst Mode® Operation Sychronizable to External Clock

3A, 2MHz Monolithic Synchronous Regulator for DDR/QDR Memory Termination Features: High Efficiency: Up to 90% ±3A Output Current Symmetrical Source and Sink Output Current Limit Low RDS(ON) Internal Switch: 85mΩ No Schottky Diode Required 2.25V to 5.5V Input Voltage Range VOUT = VREF/2 ±1% Output Voltage Accuracy Programmable Switching Frequency: Up to 2MHz Power Good Output Voltage Monitor Overtemperature Protected Available in 16-Lead TSSOP Exposed Pad Package

4A, 4MHz, Monolithic Synchronous Step-Down Regulator Features: High Efficiency: Up to 95% 4A Output Current Low Quiescent Current: 64µA Low RDS(ON) Internal Switch: 67mΩ Programmable Frequency: 300KHz to 4MHz 2.25V to 5.5V Input Voltage Range ±2% Output Voltage Accuracy 0.8V Reference Allows Low Output Voltage Selectable Forced Continuous/Burst Mode® Operation with Adjustable Burst Clamp Synchronizable Switching Frequency Low Dropout Operation: 100% Duty Cycle Power Good Output Voltage Monitor Overtemperature Protected Available in 20-Lead Exposed TSSOP Package

Dual Synchronous 1.5A/1A 4MHz Step-Down DC/DC Regulator with POR Features: High Efficiency: Up to 95% 1.5A/1A Guaranteed Minimum Output Current Synchronizable to External Clock Power-On-Reset Output No Schottky Diodes Required Programmable Frequency Operation: 1.5MHz or Adjustable From 0.6MHz to 4MHz Low Ripple (< 35mVP-P) Burst Mode® Operation Low RDS(ON) Internal Switches Short-Circuit Protected VIN: 2.25V to 5.5V Current Mode Operation for Excellent Line and Load Transient Response 125μA Quiescent Current in Sleep Mode Ultralow Shutdown Current: IQ < 1μA Low Dropout Operation: 100% Duty Cycle Phase Pin Selects 2nd Channel Phase Relationship with Respect to 1st Channel Internal Soft-Start with Individual Run Pin Control Available in Small Thermally Enhanced (3mm × 5mm) DFN and 20-Lead TSSOP Packages

Dual Monolithic 600mA Synchronous Step-Down Regulator Features: High Efficiency Dual Step-Down Outputs: Up to 96% 600mA Current per Channel at VIN = 3V Only 35µA Quiescent Current During Operation (Both Channels) 2.25MHz Constant-Frequency Operation 2.5V to 5.5V Input Voltage Range Low Dropout Operation: 100% Duty Cycle No Schottky Diodes Required Internally Compensated for All Ceramic Capacitors Independent Internal Soft-Start for Each Channel Available in Fixed Output Versions Current Mode Operation for Excellent Line and Load Transient Response 0.6V Reference Allows Low Output Voltages User-Selectable Burst Mode® Operation Short-Circuit Protected Ultralow Shutdown Current: IQ < 1µA Available in Small MSOP or 3mm × 3mm DFN-8 Packages

Dual Monolithic 600mA Synchronous Step-Down Regulator Features: High Efficiency Dual Step-Down Outputs: Up to 96% 600mA Current per Channel at VIN = 3V Only 35µA Quiescent Current During Operation (Both Channels) 2.25MHz Constant-Frequency Operation 2.5V to 5.5V Input Voltage Range Low Dropout Operation: 100% Duty Cycle No Schottky Diodes Required Internally Compensated for All Ceramic Capacitors Independent Internal Soft-Start for Each Channel Available in Fixed Output Versions Current Mode Operation for Excellent Line and Load Transient Response 0.6V Reference Allows Low Output Voltages User-Selectable Burst Mode® Operation Short-Circuit Protected Ultralow Shutdown Current: IQ < 1µA Available in Small MSOP or 3mm × 3mm DFN-8 Packages

5A, 8MHz, 4-Phase Synchronous Step-Up DC/DC Converter Features: High Efficiency: Up to 95% Up to 3A Continuous Output Current 4-Phase Operation for Low Output Ripple and Tiny Solution Size Output Disconnect and Inrush Current Limiting Very Low Quiescent Current: 12µA 0.5V to 4.5V Input Range 2.4V to 5.25V Adjustable Output Voltage Adjustable Current Limit Adjustable, Fixed Frequency Operation from 100kHz to 2MHz per Phase Synchronizable Oscillator with Sync Output Internal Synchronous Rectifiers Manual or Automatic Burst Mode® Operation Power Good Comparator <1µA Shutdown Current Antiringing Control 5mm x 5mm Thermally Enhanced QFN Package

500mA, 1.25MHz Synchronous Step-Up DC/DC Converter in 2mm 2mm DFN Package Features: High Efficiency: Up to 94% 3.3V at 200mA from Two Alkaline Cells 5V at 200mA from a Single Li-Ion Cell Inrush Current Limiting and Soft-Start Output Disconnect in Shutdown 1.8V to 5V VIN Range 1.8V to 5.25V VOUTRange 1.25MHz Fixed Frequency, Low Noise PWM Internal Synchronous Rectifier Logic Controlled Shutdown (<1μA) Anti-Ringing Control Minimizes EMI Tiny External Components Short-Circuit Protection Low Profile (0.75mm × 2mm × 2mm) DFN Package