Product Core Information

1. Core Parameters

• Module Model: KDT1963A-097
• Module Type: Linear DC-DC Step-Down Module
• Main Chip: LT1963 and LT1764 (Compatible with Both Models)
• Module Size: 30×22×5 (mm)
• Module Weight: 4.78g

2. Technical Parameters

• Supply Voltage: +4V - +20V[MAX] (Input Must Be Higher Than Output)
• Output Current: LT1963A: 1.5A - MAX; LT1764: 3A - MAX (High Current Should Be Used Under Ultra-Low Dropout Voltage)
• Minimum Dropout Voltage: 0.34V (Can Regulate Voltage Normally When Higher Than This Dropout)
• Ripple: Less Than 5mVpp (Under Non-Switching Power Supply)
• Continuous Current: Not Less Than 800mA
• Chip Noise: LT1963A: 40uVrms (10Hz-100KHz)
• Output Voltage: +1.8V/+2.5V/+3.3V/+5V/+9V/+12V/+15V (Fixed Voltage Shipment)
• Protection Function: Input Diode Reverse Connection Protection (It is Recommended to Remove the Input Diode Under High Current)
• Other Features: Output with LED Indicator

3. Application Scenarios

• Power Supply for Audio Decoding, Precision Amplifier, RF Circuit, etc.

4. Precautions

1. Pay attention to heat dissipation and dropout voltage control under high current;
2. The maximum current is transient current, not continuous current;
3. Avoid switching power supply for input, as switching power supply does not guarantee ripple;
4. Compatible with the MINI version of the store's single power module, and different models can be replaced arbitrarily;
5. The heat of linear LDO is related to current, input-output dropout voltage, and whether external heat dissipation is reasonable. The larger the dropout voltage and current, the more serious the heat. It can be optimized by increasing the chip current output margin (multi-chip parallel), adding heat sinks (such as fans), and reducing the input-output dropout voltage.