The TPS62590-Q1 device is a high-efficiency synchronous step-down converter, optimized for space constrained applications and very low quiescent current requirements. It provides up to 1000-mA output current from preregulated low voltage rails and consumes 15 µA (typical) in power-save mode.

With an input voltage range of 2.5 V to 6 V and an output voltage accuracy of 2.5%, the device is targeted to power a large variety of automotive applications.

The TPS62590-Q1 family operates at a 2.25-MHz fixed switching frequency and enters a power-save mode at light load currents to maintain a high efficiency over the entire load current range.

The power-save mode is optimized for low output-voltage ripple. For low-noise applications, the device can be forced into fixed-frequency PWM mode by pulling the MODE pin high. In the shutdown mode, the current consumption is reduced to less than 1 µA. The TPS62590-Q1 allows the use of small inductors and capacitors to achieve a small solution size.

The TPS62590-Q1 is available in a 2-mm × 2-mm 6-pin SON package with a thermal pad for improved thermal performance.

• Qualified for Automotive Applications
• Output Current up to 1000 mA
• Input Voltage Range from 2.5 V to 6 V
• High Efficiency Step Down Converter
• Output Voltage Accuracy in PWM mode ±2.5%
• Typical 15-μA Quiescent Current
• 2.25 MHz Fixed Frequency Operation
• Power Save Mode at Light Load Currents
• 100% Duty Cycle for Lowest Dropout

• Vin (Min) (V)
• 2.5
• Vin (Max) (V)
• 6
• Vout (Min) (V)
• 0.75
• Vout (Max) (V)
• 6
• Iout (Max) (A)
• 1
• Iq (Typ) (uA)
• 15
• Switching frequency (Min) (kHz)
• 2000
• Switching frequency (Max) (kHz)
• 2500
• Features
• Enable, Forced PWM, Light Load Efficiency, Synchronous Rectification
• Rating
• Automotive
• Regulated outputs (#)
• 1
• Control mode
• Voltage Mode
• Duty cycle (Max) (%)
• 100

TPS62590-Q1的完整型号有：TPS62590TDRVRQ1，以下是这些产品的关键参数及官网采购报价：

TPS62590TDRVRQ1，工作温度：-40 to 105，封装：WSON (DRV)-6，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网TPS62590TDRVRQ1的批量USD价格：.631（1000+）

TPS62590EVM-454 — TPS62590EVM-454 评估模块

TPS62590EVM-454 评估模块简化了 TPS62590 1A 同步降压 DC/DC 转换器的评估过程。

TPS62590 Unencrypted PSpice Transient Model Package (Rev. A)

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