Product Description
The LM5155QDSSRQ1 is a high-performance, switching controller IC for use in a variety of applications, including automotive systems. This IC is part of the LM5155 series and is designed to operate as a step-up or step-up/step-down DC-DC converter. It features a current-mode control technique with pulse-width modulation (PWM) and soft-start capabilities.
Product Features
Clock Synchronization: The LM5155QDSSRQ1 has a built-in clock synchronization feature, allowing it to operate in sync with an external clock signal.
Soft Start: The IC includes a soft-start feature, which helps to reduce inrush current and prevent voltage overshoot during startup.
Current-Mode Control: The LM5155QDSSRQ1 operates in current-mode control, which provides better regulation and stability compared to voltage-mode control.
Pulse Width Modulation: The IC uses PWM to regulate the output voltage, allowing for high efficiency and low noise.
Wide Operating Range: The LM5155QDSSRQ1 can operate with an input voltage range of 2.97V to 45V, making it suitable for a wide range of applications.
High Frequency Operation: The IC can operate at frequencies between 100kHz and 2.2MHz, allowing for high power density and compact designs.
Product Applications
Primary Applications: The LM5155QDSSRQ1 is suitable for use in automotive systems, such as engine control units, body control modules, and infotainment systems.
Secondary Applications: The IC can also be used in other applications, such as industrial power supplies, medical devices, and consumer electronics.
Product Description
| Type | Description |
| ANSC PART# | ANSC-LM5155QDSSRQ1 |
| Category | Integrated Circuits (ICs) |
| Power Management (PMIC) | |
| DC DC Switching Controllers | |
| Manufacturer | / |
| Series | - |
| Packaging | Tape & Reel (TR) |
| Cut Tape (CT) | |
| Part Status | Active |
| Output Type | Transistor Driver |
| Function | Step-Up, Step-Up/Step-Down |
| Output Configuration | Positive |
| Topology | Boost, Flyback, SEPIC |
| Number of Outputs | 1 |
| Output Phases | 1 |
| Voltage - Supply (Vcc/Vdd) | 2.97V ~ 45V |
| Frequency - Switching | 100kHz ~ 2.2MHz |
| Duty Cycle (Max) | 93% |
| Synchronous Rectifier | No |
| Clock Sync | Yes |
| Serial Interfaces | - |
| Control Features | Soft Start |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Grade | Automotive |
| Qualification | AEC-Q100 |
| Mounting Type | Surface Mount, Wettable Flank |
| Package / Case | 12-WFDFN Exposed Pad |
| Supplier Device Package | 12-WSON (3x2) |
| Base Product Number | LM5155 |
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