| Vin (Min) (V) | 4.5 |
| Vin (Max) (V) | 28 |
| Vout (Min) (V) | 0.9 |
| Vout (Max) (V) | 8.5 |
| Iout (Max) (A) | 15 |
| Iq (Typ) (uA) | 2000 |
| Switching frequency (Min) (kHz) | 50 |
| Switching frequency (Max) (kHz) | 500 |
| Features | Enable, Light Load Efficiency, Power Good, Synchronous Rectification |
| Regulated outputs (#) | 4 |
| Number of phases | 1 |
| Rating | Automotive |
- Qualified for Automotive Applications
- Three Independent Step-Down DC/DC Controllers
and One LDO Controller - Input Voltage Range
- Switcher: 4.5 V to 28 V
- LDO: 1.1 V to 3.6 V
- Output Voltage Range
- Switcher: 0.9 V to 8.5 V
- LDO: 0.9 V to 2.5 V
- Synchronous for High Efficiency
- Precision Vref (±1.5%)
- PWM Mode Control : 500-kHz Operation (Max)
- Auto PWM/SKIP Mode Available
- High-Speed Error Amplifier
- Overcurrent Protection With Temperature Compensation
Circuit for Each Channel - Overvoltage and Undervoltage Protection
- Programmable Short-Circuit Protection
- Power Good Output (PGOUT) With Programmable
Delay Time - 5-V and 3.3-V Linear Regulators
- APPLICATIONS
- Notebook PCs, PDAs
- Consumer Game Systems
- DSP Applications
The TPS5130 is composed of three independent synchronous buck regulator controllers (SBRC) and one low dropout (LDO) regulator controller. On-chip high-side and low-side synchronous rectifier drivers are integrated to drive less expensive N-channel MOSFETs. The LDO controller can also drive an external N-channel MOSFET. Because the input current ripple is minimized by operating 180° out of phase, it allows a smaller input capacitance, resulting in reduced power supply cost. The SBRC of the TPS5130 automatically adjusts from PWM mode to SKIP mode to maintain high efficiency under light-load conditions. Resistorless current protection for the synchronous buck controller and the fixed high-side driver voltage simplifies the system design and reduces the external parts count. The LDO controller has a current-limit protection and overshoot protection to suppress output voltage spikes at load transient. To further extend battery life, the TPS5130 features dead-time control and very low quiescent current.
