| 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 |
- 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
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.
