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参数资料
| 型号： | P1785L-S08-R |
| 厂商： | UNISONIC TECHNOLOGIES CO LTD |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING REGULATOR, 360 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封装： | LEAD FREE, SOP-8 |
| 文件页数： | 5/7页 |
| 文件大小： | 216K |
| 代理商： | P1785L-S08-R |
P1785
Preliminary
LINEAR INTEGRATED CIRCUIT
UNISONICTECHNOLOGIESCO.,LTD
5 of 7
www.unisonic.com.tw
QW-R103-043.a
FUNCTION DESCRIPTION
PWM Control
The UTC P1785 consists of DC/DC converters which employ a PWM system. In this DC/DC converter, the pulse
width varies in a range from 0 to 100% which is according to the load current. Cause the switching frequency
remains constant the ripple voltage which produced by the switching can be removed easily through a filter.
Therefore, these converters provide a low-ripple power over broad ranges of input voltage and load current.
Under Voltage Lockout
The under voltage lockout circuit makes sure that the outputs of high-side MOSFET driver remain in the off state
after the supply voltage drops below 3.3V. When VCC rises above 3.5V normal operation resumes.
RDS(ON) Current Limiting
The current limit threshold is fixed by the external resistor which is connected from VCC supply to OCSET. An
over-current condition is triggered when the PWM voltage is less than the voltage at OCSET.
ILOAD × RDS(ON) = IOCSET × ROCSET
above formula is setting the current limit value.
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相关代理商/技术参数 |
参数描述 |
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| P1785L-S08-T | 制造商:UTC-IC 制造商全称:UTC-IC 功能描述:PWM CONTROL 2A STEP-DOWN CONVERTER |
| P1786 | 制造商:UTC-IC 制造商全称:UTC-IC 功能描述:PWM CONTROL 3A STEP-DOWN CONVERTER |
| P1786_09 | 制造商:UTC-IC 制造商全称:UTC-IC 功能描述:PWM CONTROL 3A STEP-DOWN CONVERTER |
| P1786_11 | 制造商:UTC-IC 制造商全称:UTC-IC 功能描述:PWM CONTROL 3A STEP-DOWN CONVERTER |
| P1786G-S08-R | 制造商:UTC-IC 制造商全称:UTC-IC 功能描述:PWM CONTROL 3A STEP-DOWN CONVERTER |
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