| Vin (Min) (V) | 4.5 |
| Vin (Max) (V) | 24 |
| Vout (Min) (V) | 0.76 |
| Vout (Max) (V) | 5.5 |
| Iout (Max) (A) | 15 |
| Iq (Typ) (uA) | 450 |
| Switching frequency (Min) (kHz) | 350 |
| Switching frequency (Max) (kHz) | 700 |
| Features | Enable, Pre-Bias Start-Up, Synchronous Rectification |
| Regulated outputs (#) | 2 |
| Number of phases | 1 |
| Rating | Catalog |
- D-CAP2? Mode Control
- Fast Transient Response
- No External Parts Required For Loop
Compensation - Compatible with Ceramic Output Capacitors
- High Initial Reference Accuracy (±1%)
- Low Output Ripple
- Wide Input Voltage Range: 4.5 V to 24 V
- Output Voltage Range: 0.76 V to 5.5 V
- Low-Side RDS(on) Loss-Less Current Sensing
- Adaptive Gate Drivers with Integrated Boost Diode
- Internal 1.2 ms Voltage-Servo Soft Start
- Pre-Biased Soft Start
- Selectable Switching Frequency: 350 kHz / 700
kHz - Cycle-by-Cycle Over-Current Limiting Control
- 30 mV to 300 mV OCP Threshold Voltage
- Thermally Compensated OCP by 4000 ppm/C° at
ITRIP
The TPS53126 is a dual, adaptive on-time, D-CAP2? mode synchronous Buck controller. The TPS53126 enables system designers to complete the suite of various end equipment?s power bus regulators with a cost effective, low external component count, and low standby current solution. The main control loop for the TPS53126 uses the D-CAP2? mode control which provides a very fast transient response with no external components. The TPS53126 also has a proprietary circuit that enables the device to adapt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The device provides convenient and efficient operation with input voltages from 4.5 V to 24 V and output voltages from 0.76 V to 5.5 V.
The TPS53126 is available in 4mm × 4mm 24 pin VQFN (RGE) or 24 pin TSSOP (PW) packages and is specified from –40°C to 85°C ambient temperature range.
