LM3224MM-ADJ/NOPB – Boost Switching Regulator IC VSSOP-8

Resources:
Datasheet
LM3224MM-ADJ/NOPB 1.9A High-Frequency Boost (Step-Up) Switching Regulator IC
The LM3224MM-ADJ/NOPB is a high-performance step-up (boost) DC-DC converter designed for compact, low-noise power supply applications requiring flexible voltage output and fast transient response. Featuring an internal 0.15 (typical), 2.45A (typical) power switch, the device efficiently delivers high output power from a compact footprint, making it ideal for TFT-LCD biasing, LED flash drivers, and portable electronics.
This regulator operates at pin-selectable switching frequencies of 615kHz or 1.25MHz, enabling designers to balance efficiency and component size while simplifying filtering and minimizing output noise. The external compensation pin allows flexible frequency compensation design, supporting the use of low ESR ceramic output capacitors for stable, high-efficiency operation. Additionally, the external soft-start control enables designers to manage inrush current during startup for safer and smoother power-up behavior. With the ability to convert 3.3V input to outputs like 8V, 8V, and 23V, the LM3224 is ideal for applications requiring multiple voltage rails. Packaged in a low-profile 8-lead VSSOP, the device provides excellent thermal performance and compact size for high-density circuit designs.
Key Features

Step-Up Converter Design: Ideal for generating higher output voltages from low-voltage sources.
High Current Switch: 0.15 (typ.) / 2.45A (typ.) internal switch enables efficient high-current operation.
Wide Output Range: Converts 3.3V input to multiple outputs (8V, 8V, 23V).
Selectable Switching Frequency: Choose between 615kHz and 1.25MHz for optimal efficiency or compact design.
External Compensation Pin: Provides flexibility for using small, low ESR ceramic capacitors.
Soft-Start Function: Adjustable external soft-start limits inrush current during power-up.
Low Noise Performance: High-frequency operation simplifies filtering and minimizes EMI.
Compact VSSOP-8 Package: Ideal for space-constrained applications.
TFT Display and LED Applications: Optimized for biasing TFT-LCDs and driving high-current white LEDs.
Thermally Efficient Design: Ensures stable operation and reliability under heavy load conditions.