| Vin (Min) (V) | 3.1 |
| Vin (Max) (V) | 17 |
| Vout (Min) (V) | 3.3 |
| Vout (Max) (V) | 3.3 |
| Iout (Max) (A) | 1.5 |
| Iq (Typ) (uA) | 20 |
| Switching frequency (Min) (kHz) | 900 |
| Switching frequency (Max) (kHz) | 1100 |
| Features | Enable, Forced PWM, Frequency Synchronization, Light Load Efficiency, Power Good, Synchronous Rectification |
| Rating | Catalog |
| Regulated outputs (#) | 1 |
| Control mode | Voltage Mode |
| Duty cycle (Max) (%) | 100 |
- High-Efficiency Synchronous Step-Down
Converter With up to 95% Efficiency - 3.1-V to 17-V Operating Input Voltage Range
- Adjustable Output Voltage Range: 1.2 V to 16 V
- Fixed Output Voltage Options Available in
3.3 V and 5 V - Synchronizable to External Clock: Up to 1.4 MHz
- Up to 1.5-A Output Current
- High Efficiency Over a Wide Load-Current
Range Due to PFM/PWM Operation Mode - 100% Maximum Duty Cycle for Lowest Dropout
- 20-μA Quiescent Current (Typical)
- Overtemperature and Overcurrent Protected
- Available in 16-Pin VQFN Package
The TPS6211x devices are a family of low-noise synchronous step-down DC-DC converters that are ideally suited for systems powered from a 2- to 4-cell Li-ion battery or from a 12-V or 15-V rail.
The TPS6211x devices are synchronous pulse width modulation (PWM) converters with integrated N- and P-channel power MOSFET switches. Synchronous rectification is used to increase efficiency and to reduce external component count. To achieve highest efficiency over a wide load-current range, the converter enters a power-saving, pulse frequency modulation (PFM) mode at light load currents. Operating frequency is typically 1 MHz, allowing the use of small inductor and capacitor values. The device can be synchronized to an external clock signal in the range of 0.8 MHz to 1.4MHz. For low-noise operation, the converter can be operated in PWM-only mode. In shutdown mode, the current consumption is reduced to less than 2 μA. The TPS6211x family of devices are available in the 16-pin (RSA) VQFN package, and operate over a free-air temperature range of ?40°C to 85°C.
