パッケージ情報
| パッケージ | ピン数 HSOIC (DDA) | 8 |
| 動作温度範囲 (℃) -40 to 85 |
| パッケージ数量 | キャリア 2,500 | LARGE T&R |
TPS54339E の特徴
- D-CAP2 Mode Enables Fast Transient Response
- Low Output Ripple and Allows Ceramic Output Capacitor
- Wide VIN Input Voltage Range: 4.5 V to 23 V
- Output Voltage Range: 0.76 V to 7.0 V
- Highly Efficient Integrated FETs Optimized
for Lower Duty Cycle Applications
– 140 mΩ (High Side) and 70 mΩ (Low Side) - High Efficiency, less than 10 µA at shutdown
- High Initial Bandgap Reference Accuracy
- Adjustable Soft Start
- Pre-Biased Soft Start
- 600-kHz Switching Frequency (fSW)
- Cycle By Cycle Over Current Limit
- Auto-Skip Eco-mode for High Efficiency at Light Load
TPS54339E に関する概要
The TPS54339E is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54339E enables system designers to complete the suite of various end-equipment power bus regulators with a cost effective, low component count, low standby current solution. The main control loop for the TPS54339E uses the D-CAP2™ mode control that provides a fast transient response with no external compensation components. The adaptive on-time control supports seamless transition between PWM mode at higher load conditions and Eco-mode™ operation at light loads. Eco-mode™ allows the TPS54339E to maintain high efficiency during lighter load conditions. The TPS54339E also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 18-V VIN input. The output voltage can be programmed between 0.76 V and 7 V. The device also features an adjustable soft start time. The TPS54339E is available in the 8-pin DDA package, and designed to operate from –40°C to 85°C.