DIODES INC. PAM2306 Dual Step-Down DC-DC Converter
High-efficiency dual synchronous buck converter from DIODES INC. Features PWM/PSM modes, 2.5-5.5V input, 1A output, for portable electronics.
The DIODES INC. PAM2306AYPKE is a dual, high-efficiency PWM step-down DC-DC converter designed for modern, battery-powered portable electronics. It delivers excellent stability and transient response under heavy loads thanks to its constant frequency PWM control. To maximise battery life, the converter intelligently switches to a power-saving Pulse Skipping Modulation (PSM) mode during light load operation, significantly reducing quiescent current.
A key feature is its integrated under-voltage lockout, which helps prevent deep battery discharge and protects the system. During shutdown, the input is completely disconnected from the output, with an extremely low shutdown current. The device incorporates an internal synchronous rectifier and soft-start functionality for robust and reliable operation.
Technical Specifications & Features
- High Efficiency: Achieves up to 96% efficiency for optimal power management.
- Dual Output: Provides two independent regulated output channels.
- Wide Input Range: Operates from a supply voltage of 2.5V to 5.5V.
- Fixed Output Voltages: Typical output voltages include 3.3V and 1.8V.
- High Switching Frequency: 1.5MHz typical oscillator frequency allows for the use of smaller external components.
- Thermal Robustness: Operational across an ambient temperature range of -40°C to +85°C.
- Surface Mount Design: Supplied in a compact 12-pin WDFN package for space-constrained PCB layouts.
- Excellent Regulation: Output voltage accuracy is within +3% maximum under specified conditions.
- Cellular phones and smartphones
- Portable media players (e.g., MP3 players)
- Personal digital assistants and information appliances
- Wireless and DSL modems
- Topology: Synchronous Buck (Step Down)
- Number of Outputs: 2 Outputs
- Output Type: Fixed
- Input Voltage Range: 2.5V to 5.5V
- Max Output Current: 1A per channel
- Typical Output Voltages: 3.3V, 1.8V
- Typical Switching Frequency: 1.5MHz
- Typical Efficiency: 96%
- Quiescent Current: 40µA per channel (typical, no load)
- Shutdown Current: 0.1µA per channel (typical)
- Operating Temperature Range: -40°C to +85°C
- Package / Case: WDFN
- Number of Pins: 12 Pins
- Mounting Type: Surface Mount
- Package Dimensions: 3.3mm x 2.2mm
- IC Case / Package: WDFN
- of Pins: 12Pins
- IC Mounting: Surface Mount
- Output Voltage - Nom: 3.3V, 1.8V
- Switching Frequency Typ: 1.5kHz
- Efficiency: 96%
- Operating Temperature Min: -40°C
- Operating Temperature Max: 85°C
- SVHC: No SVHC (25-Jun-2025)
- DC / DC Converter IC Case: WDFN
- Switching Frequency: 1.5MHz
Documents
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