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The uP1542 is a compact synchronous-rectified buck controller specifically designed to operate from 5V or 12V supply voltage and to deliver high quality output voltage as low as 0.6V for uP1542S/U (linear OCP). The uP1542 adopts constant frequency, voltage mode control scheme, featuring easy-to-use, low external component count, and fast transient response. .
include internal soft start, over/under voltage protection, over current protection and shutdown function. With aforementioned functions, this part provides customers a compact, high efficiency, well-protected and cost-effective solutions. This part is available in PSOP8L and WDFN2x2-8L package. Pin Configuration BOOT UG OCS LG 1 8 297 3 GND 6 4 5 PH COMP/EN FB VCC PSOP-8L (uP1542S) BOOT UG GND LG 1 8 297 3 GND 6 4 5 PH COMP/EN FB VCC PSOP-8L (uP1542Q/T/V) Features Operates from 5V or 12V Supply Voltage 3.3V to 12V VIN Input Range VREF with 1.0% Accuracy: uP1542S/U: 0.6V VREF .
| No. | Partie # | Fabricant | Description | Fiche Technique |
|---|---|---|---|---|
| 1 | uP1540 |
uPI Semiconductor |
5V/12V Synchronous-Rectified Buck Controller |
|
| 2 | uP1537 |
uPI Semiconductor |
Single Synchronous Step-Down Controller |
|
| 3 | uP1537-B1 |
uPI Semiconductor |
Single Synchronous Step-Down Controller |
|
| 4 | uP1539 |
uPI Semiconductor |
Single Phase PWM Controller |
|
| 5 | uP1561 |
uPI Semiconductor |
Synchronous Buck Controller |
|
| 6 | uP1586 |
uPI Semiconductor |
Dual Synchronous Buck Controller |
|
| 7 | uP1590 |
uPI Semiconductor |
Dual Synchronous Buck Controller |
|
| 8 | UP159A |
National Semiconductor |
159 Pin Molded Plastic Pin Grid Array NS Package |
|
| 9 | UP1117B |
UniverChipSemi |
1A Bipolar Linear Regulator |
|
| 10 | UP1496 |
Unisonic Technologies |
PNP SILICON TRANSISTOR |
|
| 11 | uP1605 |
uPI Semiconductor |
Compact Dual-Phase Synchronous-Rectified Buck Controller |
|
| 12 | UP1620 |
UNISONIC TECHNOLOGIES |
PNP SILICON POWER TRANSISTOR |
|