PM6675AS High efficiency step down controller with embedded 2A LDO regulator
The PM6675AS device consists of a single high efficiency step-down controller and an independent low drop-out (LDO) linear regulator.
The constant on-time (COT) architecture assures fast transient response supporting both electrolytic and ceramic output capacitors. An embedded integrator control loop compensates the DC voltage error due to the output ripple.
Selectable low-consumption mode allows the highest efficiency over a wide range of load conditions. The low-noise mode sets the minimum switching frequency to 33 kHz for audio-sensitive applications. The LDO linear regulator can sink and source up to 2 Apk. Two fixed current limit (±1 A- ±2 A) can be chosen.
An active soft-end is independently performed on both the switching and the linear regulators outputs when disabled
技术特性
- Switching section
- 4.5 V to 36 V input voltage range
- 0.6 V, ±1 % voltage reference
- Selectable 1.5 V fixed output voltage
- Adjustable 0.6 V to 3.3 V output voltage
- 1.237 V ±1 % reference voltage available
- Very fast load transient response using constant-on-time control loop
- No RSENSE current sensing using low side MOSFETs' RDS(ON)
- Soft-start internally fixed at 3 ms
- Selectable pulse skipping at light load
- Selectable No-audible (33 kHz) pulse skip mode
- Ceramic output capacitors supported
- Output voltage ripple compensation
- LDO regulator section
- Adjustable 0.6 V to 3.3 V output voltage
- Selectable ±1 Apk or ±2 Apk current limit
- Dedicated power-good signal
- Ceramic output capacitors supported
|
功能框图
 |
PM6675AS 订购信息
| 订购型号 |
产品状态 |
美金价格 |
数量 |
封装 |
包装形式 |
温度范围 |
材料声明 |
| PM6675ASTR |
Active |
|
1000 |
VFQFPN 24 4x4x1.0 |
Tape And Reel |
|
|
| PM6675AS |
Active |
|
1000 |
VFQFPN 24 4x4x1.0 |
Tube |
|
|
DATASHEET
| 描述 |
版本 |
大小 |
| PM6675AS : DS5726: High efficiency step-down controller with embedded 2 A LDO regulator |
1 |
2482KB |
APPLICATION NOTES
| 描述 |
版本 |
大小 |
| AN2815: High-efficiency step-down controller with embedded 2 A LDO regulator |
1 |
2538KB |
BOARDS AND TOOLS
| 型号 |
描述 |
| STEVAL-ISA052V2 |
Evaluation board for the PM6675AS high efficiency step-down controller with embedded 2 A LDO regulator |
FLYERS
