TPS62420 Series

Dual, Adjustable, 600mA and 1000mA, 2.25MHz Step-Down Converter with 1-Wire Interface in QFN

Catalog(3 parts)

Part	Voltage - Input (Max)▲▼	Output Configuration	Number of Outputs▲▼	Voltage - Input (Min)▲▼	Topology	Function	Current - Output▲▼	Mounting Type	Frequency - Switching▲▼	Output Type	Operating Temperature▲▼	Operating Temperature▲▼	Supplier Device Package	Voltage - Output (Min/Fixed)▲▼	Package / Case	Qualification	Grade
Texas Instruments TPS62420DRCRG4 Buck Switching Regulator IC Positive Adjustable 0.6V 2 Output 600mA, 1A 10-VFDFN Exposed Pad	6 V	Positive	2 ul	2.5 V	Buck	Step-Down	0.6000000238418579 A, 1 A	Surface Mount	2250000 Hz	Adjustable	85 °C	-40 °C	10-VSON (3x3)	0.6000000238418579 V	10-VFDFN Exposed Pad
Texas Instruments TPS62420QDRCRQ1 Buck Switching Regulator IC Positive Adjustable 0.6V 2 Output 600mA, 1A 10-VFDFN Exposed Pad	6 V	Positive	2 ul	2.5 V	Buck	Step-Down	0.6000000238418579 A, 1 A	Surface Mount	2250000 Hz	Adjustable	125 °C	-40 °C	10-VSON (3x3)	0.6000000238418579 V	10-VFDFN Exposed Pad	AEC-Q100	Automotive
Texas Instruments TPS62420DRCR Buck Switching Regulator IC Positive Adjustable 0.6V 2 Output 600mA, 1A 10-VFDFN Exposed Pad	6 V	Positive	2 ul	2.5 V	Buck	Step-Down	0.6000000238418579 A, 1 A	Surface Mount	2250000 Hz	Adjustable	85 °C	-40 °C	10-VSON (3x3)	0.6000000238418579 V	10-VFDFN Exposed Pad

Key Features

• High Efficiency up to 95%VINRange from 2.5 V to 6 V2.25-MHz Fixed Frequency OperationOutput Current 600 mA and 1000 mAAdjustable Output Voltage from 0.6 V to VINPin Selectable Output Voltage Supports SimpleDynamic VoltageScalingOptional EasyScale One-Pin Serial Interface forDynamic Output Voltage AdjustmentPower-Save Mode at Light Load Currents180° Out of Phase OperationOutput Voltage Accuracy in PWM Mode ±1%Typical 32-µA Quiescent Current for bothConverters100% Duty Cycle for Lowest DropoutAvailable in a 10-Pin VSON (3 mm × 3 mm)High Efficiency up to 95%VINRange from 2.5 V to 6 V2.25-MHz Fixed Frequency OperationOutput Current 600 mA and 1000 mAAdjustable Output Voltage from 0.6 V to VINPin Selectable Output Voltage Supports SimpleDynamic VoltageScalingOptional EasyScale One-Pin Serial Interface forDynamic Output Voltage AdjustmentPower-Save Mode at Light Load Currents180° Out of Phase OperationOutput Voltage Accuracy in PWM Mode ±1%Typical 32-µA Quiescent Current for bothConverters100% Duty Cycle for Lowest DropoutAvailable in a 10-Pin VSON (3 mm × 3 mm)

Description

The TPS6242x device is a synchronous dual step-down DC–DC converter. It provides two independent output voltage rails powered by 1-cell Li-Ion or 3-cell NiMH/NiCD batteries. The device is also suitable to operate from a standard 3.3-V or 5-V voltage rail. With an input voltage range of 2.5 V to 6 V, the TPS6242x is ideal for battery-powered portable applications like smart phones, PDAs, and other portable equipment. With the EasyScale™ serial interface the output voltages can be modified during operation. It therefore supports dynamic voltage scaling for low power DSP and processors. The TPS6242x operates at 2.25-MHz fixed switching frequency and enter the power-save mode operation at light load currents to maintain high efficiency over the entire load current range. For low-noise applications the devices can be forced into fixed-frequency PWM mode by pulling the MODE/DATA pin High. In the shutdown mode, the current consumption is reduced to 1.2 µA. The device allows the use of small inductors and capacitors to achieve a small solution size. The TPS6242x operates over a free-air temperature range of –40°C to 85°C. It is available in a 10-pin leadless package (3 mm × 3 mm VSON) The TPS6242x device is a synchronous dual step-down DC–DC converter. It provides two independent output voltage rails powered by 1-cell Li-Ion or 3-cell NiMH/NiCD batteries. The device is also suitable to operate from a standard 3.3-V or 5-V voltage rail. With an input voltage range of 2.5 V to 6 V, the TPS6242x is ideal for battery-powered portable applications like smart phones, PDAs, and other portable equipment. With the EasyScale™ serial interface the output voltages can be modified during operation. It therefore supports dynamic voltage scaling for low power DSP and processors. The TPS6242x operates at 2.25-MHz fixed switching frequency and enter the power-save mode operation at light load currents to maintain high efficiency over the entire load current range. For low-noise applications the devices can be forced into fixed-frequency PWM mode by pulling the MODE/DATA pin High. In the shutdown mode, the current consumption is reduced to 1.2 µA. The device allows the use of small inductors and capacitors to achieve a small solution size. The TPS6242x operates over a free-air temperature range of –40°C to 85°C. It is available in a 10-pin leadless package (3 mm × 3 mm VSON)