The TPS6240x-Q1 family of devices are synchronous dual step-down DC-DC converters optimized for battery-powered portable applications and automotive systems. They provide two independent output voltage rails powered by rechargeable batteries or standard 3.3-V or 5-V voltage rail.

The EasyScale™ serial interface allows output-voltages modification during operation. The fixed-output-voltage versions, TPS62402-Q1,
TPS62404-Q1, and TPS62405-Q1 support one-pin-controlled simple dynamic voltage scaling for low-power processors.

The TPS6240x-Q1 operates at 2.25-MHz fixed switching frequency and enters the power-save mode operation at light load currents to maintain high efficiency over the entire load-current range. For low-noise applications, one can force the devices into fixed-frequency PWM mode by pulling the MODE/DATA pin high. The shutdown mode reduces the current consumption to 1.2-µA, typical. The devices allow the use of small inductors and capacitors to achieve a small solution size.

• Qualified for automotive applications
• AEC-Q100 qualified with the following results:
  • Device temperature grade 1: –40°C to 125°C operating junction temperature range
  • Device HBM ESD classification level H2
  • Device CDM ESD classification level C4B
• High efficiency—up to 95%
• VIN Range from 2.5 V to 6 V
• 2.25-MHz Fixed-frequency operation
• Output current 400 mA and 600 mA
• Adjustable output voltage from 0.6 V to VIN
• Pin selectable output voltage supports simple dynamic voltage scaling
• EasyScale? optional one-pin serial interface
• Power-save mode at light load currents
• 180° Out-of-phase operation
• Output-voltage accuracy in PWM mode ±1%
• Typical 32-μA quiescent current for both converters
• 100% Duty cycle for lowest dropout

• Vin (Min) (V)
• 2.5
• Vin (Max) (V)
• 6
• Vout (Min) (V)
• 1.2
• Vout (Max) (V)
• 1.8
• Iout (Max) (A)
• 0.4
• Iq (Typ) (uA)
• 32
• Switching frequency (Min) (kHz)
• 2000
• Switching frequency (Max) (kHz)
• 2500
• Features
• Adaptive/Dynamic Voltage Scaling, Enable, Forced PWM, Light Load Efficiency, Synchronous Rectification
• Rating
• Automotive
• Regulated outputs (#)
• 2
• Control mode
• Voltage Mode
• Duty cycle (Max) (%)
• 100

TPS62402-Q1的完整型号有：TPS62402QDRCRQ1，以下是这些产品的关键参数及官网采购报价：

TPS62402QDRCRQ1，工作温度：-40 to 125，封装：VSON (DRC)-10，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-3-260C-168 HR，引脚镀层/焊球材料：NIPDAU，TI官网TPS62402QDRCRQ1的批量USD价格：0.719（1000+）

TPS62402 Unencrypted PSpice Transient Model Package (Rev. A)

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