2.5A, 4MHz, Monolithic Synchronous Step-Down Regulator Features: High Efficiency: Up to 95% 2.5A Output Current Low Quiescent Current: 62µA Low RDS(ON) Internal Switches: 85mΩ Programmable Frequency: 300kHz to 4MHz No Schottky Diode Required ±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 Protection Available in 16-Lead Thermally Enhanced TSSOP and QFN Packages

2.5A, 4MHz, Monolithic Synchronous Step-Down Regulator Features: High Efficiency: Up to 95% 2.5A Output Current Low Quiescent Current: 62µA Low RDS(ON) Internal Switches: 85mΩ Programmable Frequency: 300kHz to 4MHz No Schottky Diode Required ±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 Protection Available in 16-Lead Thermally Enhanced TSSOP and QFN Packages

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

1.7A, 1.5MHz Synchronous Step-Up DC/DC Converter with Output Disconnect Features: High Efficiency: Up to 95% Inrush Current Limiting and Output Disconnect Programmable Output Voltages up to 6V 1.5V to 6V Input Range Programmable/Synchronizable Fixed Frequency Operation up to 1.5MHz Programmable Automatic Burst Mode® Operation Current Mode Control with Programmable Soft-Start Period and Peak Current Limit 0.2Ω N-Channel and 0.3Ω P-Channel Switches Ultralow Quiescent Currents: 12µA Sleep, <1µA in Shutdown 12-Pin 4mm × 3mm Thermally Enhanced DFN Package