L6725A 2/3 phase controller with embedded drivers for Intel VR10, VR11 and AMD 6 bit CPUs
The device is a flexible high performance PWM buck controller dedicated for low voltage distributed DC-DC. The input voltage can range from 1.8V to 18V, while the supply voltage can range from 4.5V to 18V. The output voltage is adjustable down to 0.6V.
High peak current gate drivers provide for fast switching to the external power section, and the output current can be in excess of 20A. The device is capable to manage minimum on-times (TON) shorter than 100ns making possible conversions with very low duty cycle and very high switching frequency. In order to guarantee a real overcurrent protection, also with very narrow TON, the current sense is realized both on the high-side and low-side MOSFETs. When necessary, two different current limit protections can be externally set through an external resistor. The device can sink current after the soft-start phase while, during the soft-start, the sink mode capability is disabled in order to allow a proper start-up also in pre-biased output voltage conditions. Other features are over-voltage-protection and thermal shutdown
技术特性
- Input voltage range from 1.8V to 18V
- Supply voltage range from 4.5V to 18V
- Adjustable output voltage down to 0.6V with ±0.8% accuracy over line voltage and temperature (0˚C~125˚C)
- Fixed frequency voltage mode control
- 0% to 100% duty cycle
- External input voltage reference
- Soft-start and inhibit
- Bootstrap anti-discharging system
- High current embedded drivers
- Predictive anti-cross conduction control
- Programmable high-side and low-side RDS(on) sense over-current-protection
- Sink current capability
- Selectable switching frequency 250KHz/500KHz
- Pre-bias start up capability
- Over voltage protection
- Thermal shut-down
- Package: SO16N
L6725A 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 |
| L6725ATR |
Active |
|
1000 |
SO-16 |
Tape And Reel |
|
|
| L6725A |
Active |
|
1000 |
SO-16 |
Tube |
|
|
DATASHEET
| 描述 |
版本 |
大小 |
| L6725A : Voltage mode PWM controller with bootstrap anti-discharging system |
5 |
813KB |
APPLICATION NOTES
| 描述 |
版本 |
大小 |
| AN2439: 27W Output power ultra wide range input flyback converter |
1 |
422KB |
