Triple Buck Regulator with 1.2A and Two 600mA Outputs and Individual Programmable References Features:Three Independent Current Mode Buck DC/DC Regulators (1.2A and 2 × 600mA)Single Pin Programmable VFB Servo Voltages from 800mV Down to 425mV (in 25mV Steps)Pull VFB High to Make Each 600mA Buck a Slave for Higher Current OperationPulse-Skipping or Burst Mode® OperationProgrammable Switching Frequency (1MHz to 3MHz) or Fixed 2.25MHzSynchronizable (1.2MHz to 3MHz)VIN Range 2.5V to 5.5VAll Regulators Internally CompensatedPGOOD Output FlagQuiescent Current <100μA (All Regulators in Burst Mode Operation)Zero Shutdown CurrentOvertemperature and Short-Circuit ProtectionTiny 3mm × 3mm, 3mm × 4mm 20-Lead QFN and Thermally Enhanced TSSOP FE-16 Packages

15V, 1.5A Synchronous Rail-to-Rail Single Resistor Step-Down Regulator Features: Single Resistor Programmable VOUT ±1% ISET Accuracy Tight VOUT Regulation Independent of VOUT Voltage Easy to Parallel for Higher Current and Heat Spreading Wide VOUT Range 0V to VIN – 0.5V High Efficiency: Up to 96% 1.5A Output Current Adjustable Frequency: 200kHz to 4MHz 4V to 15V VIN Range Current Mode Operation for Excellent Line and Load Transient Response Zero Supply Current in Shutdown Available in Thermally Enhanced 12-Pin (3mm × 3mm) DFN and MSOP Packages

15V, 1.5A Synchronous Rail-to-Rail Single Resistor Step-Down Regulator Features: Single Resistor Programmable VOUT ±1% ISET Accuracy Tight VOUT Regulation Independent of VOUT Voltage Easy to Parallel for Higher Current and Heat Spreading Wide VOUT Range 0V to VIN – 0.5V High Efficiency: Up to 96% 1.5A Output Current Adjustable Frequency: 200kHz to 4MHz 4V to 15V VIN Range Current Mode Operation for Excellent Line and Load Transient Response Zero Supply Current in Shutdown Available in Thermally Enhanced 12-Pin (3mm × 3mm) DFN and MSOP Packages

1.5A, 15V Monolithic Synchronous Step-Down Regulator Features: 4V to 15V Operating Input Voltage Range 1.5A Output Current Up to 96% Efficiency Very Low Duty Cycle Operation: 5% at 2.25MHz Adjustable Switching Frequency: 800kHz to 4MHz External Frequency Synchronization Current Mode Operation for Excellent Line and Load Transient Response User Selectable Burst Mode® (No Load IQ = 300μA) or Forced Continuous Operation 0.6V Reference Allows Low Output Voltages Short-Circuit Protected Output Voltage Tracking Capability Programmable Soft-Start Power Good Status Output Available in Small, Thermally Enhanced, 16-Pin QFN (3mm × 3mm) and MSOP Packages

1.5A, 15V Monolithic Synchronous Step-Down Regulator Features: 4V to 15V Operating Input Voltage Range 1.5A Output Current Up to 96% Efficiency Very Low Duty Cycle Operation: 5% at 2.25MHz Adjustable Switching Frequency: 800kHz to 4MHz External Frequency Synchronization Current Mode Operation for Excellent Line and Load Transient Response User Selectable Burst Mode® (No Load IQ = 300μA) or Forced Continuous Operation 0.6V Reference Allows Low Output Voltages Short-Circuit Protected Output Voltage Tracking Capability Programmable Soft-Start Power Good Status Output Available in Small, Thermally Enhanced, 16-Pin QFN (3mm × 3mm) and MSOP Packages

2.5A, 15V Monolithic Synchronous Step-Down Regulator Features: Wide Input Voltage Range: 4.5V to 15V 2.5A Output Current Low RDS(ON) Internal Switches: 45mΩ and 85mΩ Programmable Frequency: 300kHz to 3MHz Low Quiescent Current: 75μA 0.6V ±1% Reference Allows Precise, Low Output Voltage 99% Maximum Duty Cycle Adjustable Burst Mode® Clamp Synchronizable to External Clock Power Good Output Voltage Monitor Overtemperature Protection Overvoltage Protection Available in 16-Lead Thermally Enhanced MSOP and 4mm × 4mm QFN Packages

2.5A, 15V Monolithic Synchronous Step-Down Regulator Features: Wide Input Voltage Range: 4.5V to 15V 2.5A Output Current Low RDS(ON) Internal Switches: 45mΩ and 85mΩ Programmable Frequency: 300kHz to 3MHz Low Quiescent Current: 75μA 0.6V ±1% Reference Allows Precise, Low Output Voltage 99% Maximum Duty Cycle Adjustable Burst Mode® Clamp Synchronizable to External Clock Power Good Output Voltage Monitor Overtemperature Protection Overvoltage Protection Available in 16-Lead Thermally Enhanced MSOP and 4mm × 4mm QFN Packages

2.5A, 15V Monolithic Synchronous Step-Down Regulator Features: Wide Input Voltage Range: 4.5V to 15V 2.5A Output Current Low RDS(ON) Internal Switches: 45mΩ and 85mΩ Programmable Frequency: 300kHz to 3MHz Low Quiescent Current: 75μA 0.6V ±1% Reference Allows Precise, Low Output Voltage 99% Maximum Duty Cycle Adjustable Burst Mode® Clamp Synchronizable to External Clock Power Good Output Voltage Monitor Overtemperature Protection Overvoltage Protection Available in 16-Lead Thermally Enhanced MSOP and 4mm × 4mm QFN Packages

2.5A, 15V Monolithic Synchronous Step-Down Regulator Features: 3.6V to 15V Operating Input Voltage Range 2.5A Output Current Up to 95% Efficiency Very Low Duty Cycle Operation: 5% at 2.25MHz Adjustable Switching Frequency: 800kHz to 4MHz External Frequency Synchronization Current Mode Operation for Excellent Line and Load Transient Response User Selectable Low Ripple (20mVP-P Typical) Burst Mode® (No Load IQ = 300μA) or Forced Continuous Operation 0.6V Reference Allows Low Output Voltages Short-Circuit Protected Output Voltage Tracking Capability Power Good Status Output Available in Small, Thermally-Enhanced, 16-Pin QFN (3mm × 3mm) and MSOP Packages

Dual 600mA 15V Monolithic Synchronous Step-Down DC/DC Regulator Features:High Efficiency: Up to 96%Very Low Quiescent Current: 55μA Total2.25MHz Constant Frequency OperationLow Dropout Operation: 100% Duty CycleLow-Ripple (Typical 30mVP-P) Burst Mode® OperationPeak Current-Mode Control Architecture for Excellent Line and Load Transient ResponseWide Voltage Input Range: 4.5V to 15V600mA/Channel Rated Output Current0.6V Reference Allows Low Output Voltages±1.5% Output Voltage AccuracyUltralow Shutdown Current: IQ < 1μAInternal CompensationPower Good OutputsExternally Frequency Synchronization (1MHz to 4MHz)Independent Internal Soft-Start for Each ChannelSmall 16-Lead Thermally Enhanced Thin QFN (3mm × 3mm) and MSE Packages