パッケージ情報
| パッケージ | ピン数 HTSSOP (PWP) | 20 |
| 動作温度範囲 (℃) -40 to 125 |
| パッケージ数量 | キャリア 2,000 | LARGE T&R |
TPS54262-Q1 の特徴
- Asynchronous Switch Mode Regulator
- Qualified for Automotive Applications
- 3.6-V to 48-V Operating Range, Withstands
Transients up to 60 V - 2-A Maximum Load Current
- 50-µA Typical Quiescent Current
- 200-kHz to 2.2-MHz Switching Frequency
- 0.8 V ± 1.5% Voltage Reference
- High-Voltage Tolerant Enable Input
- Soft Start on Enable Cycle
- Slew Rate Control on Internal Power Switch
- Low-Power Mode for Light-Load Conditions
- Programmable Delay for Power-On Reset
- External Compensation for Error Amplifier
- Reset Function Filter Time for Fast Negative
Transients - Programmable Overvoltage, Undervoltage Output
Monitor - Thermal Sensing and Shutdown
- Switch Current Limit Protection
- Short Circuit and Overcurrent Protection of FET
- Junction Temperature Range: –40°C to 150°C
- 20-Pin HTSSOP PowerPAD™ Package
TPS54262-Q1 に関する概要
The TPS54262-Q1 device is a 60-V, 2-A step-down switch-mode power supply with a low-power mode and a programmable voltage supervisor with an integrated NMOS switching FET. Integrated input voltage line feed forward topology improves line transient regulation of the voltage mode buck regulator. The regulator has a cycle-by-cycle current limit. The device also features low-power mode operation under light-load conditions which reduces the supply current to 50 µA (typical). By pulling the EN pin low, the supply shutdown current is reduced to 1 µA (typical).
An open-drain reset signal indicates when the nominal output drops below the reset threshold set by an external resistor divider network. The output voltage start-up ramp is controlled by a soft-start capacitor. There is an internal undervoltage shut down which is activated when the input supply ramps down to 2.6 V. The device features a short circuit protection circuit which protects the device during overload condition, and also has a thermal shutdown protection.