TPS62403DRCT

The TPS62403DRCT belongs to the TPS6240x family. The TPS6240x device series are synchronous dual step-down DC-DC converters optimized for battery powered portable applications. They provide two independent output voltage rails powered by 1-cell Li-Ion or 3-cell NiMH/NiCD batteries. The TPS62403DRCT is also suitable to operate from a standard 3.3V or 5V voltage rail. With an input voltage range of 2.5V to 6V the TPS62400 is ideal to power portable applications like smart phones, PDAs and other portable equipment. With the EasyScale™ serial interface the output voltages can be modified during operation. The fixed output voltage versions TPS62401, TPS62402, TPS62403 support one pin controlled simple Dynamic Voltage Scaling for low power processors.

The features of TPS6240x family are (1) High Efficiency-Up to 95%, (2) VIN Range From 2.5 V to 6 V, (2) 2.25 MHz Fixed Frequency Operation, (3) Power Save Mode at Light Load Currents, (4) Output Current 400 mA and 600 mA, (5) Adjustable Output Voltage From 0.6V to VIN, (6) EasyScale™ Optional One-Pin Serial Interface, (7) Pin Selectable Output Voltage Supports Simple Dynamic Voltage Scaling, (8) 180° Out of Phase Operation, (9) Output Voltage Accuracy in PWM Mode ±1%, (10) 100% Duty Cycle for Lowest Dropout, (11) Typical 32-µA Quiescent Current for both Converters, (12) Available in a 10-Pin QFN (3*3mm), (13) One Pin Simple Dynamic Voltage Scaling. The TPS6240x family can be applicated in cell phones, smart-phones; PDAs, pocket PCs; OMAP™ and low power DSP supply; portable media players; digital radio.

Some parameters of TPS62403 are got, they are individually Iout(Max)(A) 0.4, Iout2(Max)(A) 0.6, Vin(Min)(V) 2.5, Vin(Max)(V) 6, Vout(Min)(V) 1.1, Vout(Max)(V) 1.575, Iq(Typ)(mA) 0.032, Switching Frequency(Max)(kHz) 2250, Switch Current Limit(Typ)(A) 1, Topology Buck, Operating Temp Range(Celsius) -40 to 85, Pin/Package 10SON, Rating Catalog, Duty Cycle(Max)(%) 100, Vout2(Min)(V) 2.8, Vout2(Max)(V) 2.8, Regulated Outputs(#) 2, Thermal Shutdown No. The absolute maximum ratings are got over operating free-air temperature range (unless othenrvise noted)(1: Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absolute maximum-rated conditions for extended periods may affect device reliability. ). They are (1) Input voltage range on VIN(2: All voltage values are with respect to network ground terminal. )=-0.3 to 7V, (2) Voltage range on EN, (3) MODE/DATA, DEF_1=-0.3 to VIN +0.3, 7 V, (4) current into MODE/DATA  0.5 mA, (5) Voltage on SW1, SW2=-0.3 to 7V, (6) Voltage on ADJ2, FB1 -0.3 to VIN +0.3, 7V, (7) HBM Human body model=2 kV, ESD rating(3: The human body model is a 100pF capacitor discharged through a 1.5kQ resistor into each pin. The machine model is a 200pF capacitor discharged directly into each pin. ), Charge device model CDM=1 kV, Machine model=200V, TJ(max) Maximum operating junction temperature=150, TA Operating ambient temperature range=-40 to 85, Tstg Storage temperature range -65 to 150 .