产品特性- 4.5V to 19V input voltage range
- 5A (maximum) output current
- I2C Programmable Output Voltage:
0.64V to 5.25V in 5 mV, 10 mV, 30 mV and
50 mV Steps
- 0.64V to 5.25V in 5 mV, 10 mV, 30 mV and
50 mV Steps
- High Efficiency (>95%)
- I2C programmability of:
Soft-Start: 0.16, 0.38, 0.76 and 1.5V/ms ramp
rates
Switching Frequency: 310 kHz, 400 kHz,
500 kHz, 570 kHz, 660 kHz, 780 kHz, 1 MHz,
1.2 MHz
Current Limits for 2A, 3A, 4A and 5A loads
- Soft-Start: 0.16, 0.38, 0.76 and 1.5V/ms ramp
rates
- Switching Frequency: 310 kHz, 400 kHz,
500 kHz, 570 kHz, 660 kHz, 780 kHz, 1 MHz,
1.2 MHz
- Current Limits for 2A, 3A, 4A and 5A loads
- ±1% output voltage accuracy
- Supports safe start-up with pre-biased output
- Internal soft-start and thermal shutdown protection
- Hiccup-mode short-circuit protection
- Available in a 20-pin 3mm x 3mm QFN package
- -40°C to +125°C junction temperature range
| 技术参数|
Parameter Name
Value
| Value | |
Regulator Type
Step Down (Buck)
|
Step Down (Buck)
| |
# of Outputs
1
|
1
| |
Input Voltage Range Min (V)
4.5
|
4.5
| |
Input Voltage Range Max (V)
19
|
19
| |
Output Voltage Range Min (V)
0.65
|
0.65
| |
Output Voltage Range Max (V)
5.5
|
5.5
| |
Output Current (A) max
5
|
5
| |
Switching Frequency (kHz)
1200
|
1200
| |
Synchronous Rectifier
Yes
|
Yes
| |
Operating Temp Range
-40 to +125
|
-40 to +125
| |
Vfb (V)
0.65
|
0.65
| |
Duty Cycle Max (%)
90
|
90
|
|
