PWM CONTROLLER CURRENT MODE 250KHZ 8SOIC
STMicroelectronics

Bypass caps, pull-ups, strapping resistors, custom silkscreen & more
Design a Custom BoardHigh-performance current-mode PWM controller IC for offline and DC-DC fixed-frequency power supply applications. Features trimmed 250kHz oscillator, 5V internal reference, cycle-by-cycle current limiting, and high-current totem-pole output suitable for driving N-channel MOSFETs. Includes undervoltage lockout with hysteresis and automatic feedforward compensation for minimal external component count.
An 8-pin SOIC with 1.27mm pitch is too fine for breadboards and hand-soldering without a microscope. A breakout board routes these pins to standard 0.1" headers, enabling rapid prototyping and reliable connections for op-amps, transceivers, and small power MOSFETs without requiring reflow equipment.
ELECTRICAL CHARACTERISTICS
| Manufacturer | STMicroelectronics |
| Part Number | UC2844BD1013TR |
| Package | SOIC-8 (3.9×4.9mm) |
| Pin Count | 8 |
| Frequency - Switching | Up to 500kHz |
| Number of Outputs | 1 |
| Output Configuration | Positive, Isolation Capable |
| Output Type | Transistor Driver |
| Topology | Boost, Flyback |
| Voltage - Supply (Vcc/Vdd) | 10V ~ 30V |
BILL OF MATERIALS
PCB SPECIFICATIONS
< 0.9" (straddles breadboard)
2.54mm standard
Lead-free, reflow assembled
FR4, lead-free HASL