Gehäuseinformationen
| Gehäuse | Pins VSON-HR (DLC) | 8 |
| Betriebstemperaturbereich (°C) -40 to 125 |
| Gehäusemenge | Träger 3.000 | LARGE T&R |
Merkmale von TPS62840
- 60-nA operating quiescent current
- 100% duty-cycle mode with 120-nA IQ
- Input voltage range VIN from 1.8 V to 6.5 V
- Output current up to 750 mA
- RF friendly DCS-Control™
- 80% efficiency at 1 µA IOUT (3.6 VIN to 1.8 VOUT)
- 16 selectable output voltages via VSET pin
- Auto transition PFM/PWM or forced-PWM mode
- Selectable forced PWM and STOP modes
- Output discharge function
- 25-nA shutdown current
- SON-8, WCSP-6 and thermally enhanced HVSSOP-8 packages
Beschreibung von TPS62840
The TPS62840 is a high-efficiency step-down converter with ultra-low operating quiescent current of typically 60 nA. The device contains special circuitry to achieve just 120 nA IQ in 100% mode to further extend battery life near the end of discharge.
The device uses DCS-Control to cleanly power radios and operates with a typical switching frequency of 1.8 MHz. In Power-Save Mode, the device extends the light load efficiency down to a load current range of 1 µA and below.
16 predefined output voltages can be selected by connecting a resistor to pin VSET, making the device flexible for various applications with a minimum amount of external components.
The STOP pin of the device immediately eliminates any switching noise in order to take a noise-free measurement in test and measurement systems.
The TPS62840 provides an output current of up to 750 mA. With an input voltage of 1.8 V to 6.5 V, the device supports multiple power sources such as 2S to 4S Alkaline, 1S to 2S Li-MnO2, or 1S Li-Ion/Li-SOCl2.