Datasheet LT8610AC, LT8610AC-1 (Analog Devices) - 7

LT8610AC/LT8610AC-1
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. RT Programmed Switching Frequency Minimum Input Voltage
250 3.0 (LT8610AC) 225 2.9 200 2.8 175 2.7 150 2.6 125 2.5 100 2.4 RT PIN RESISTOR (kΩ) 75 2.3 50 MINIMUM INPUT VOLTAGE (V) 2.2 25 2.1 0 2.0 0.2 0.6 1 1.4 1.8 2.2 –55 –25 5 35 65 95 125 155 SWITCHING FREQUENCY (MHz) TEMPERATURE (°C) 8610ac1 G28 8610ac1 G29
Bias Pin Current Bias Pin Current
6.5 12 VBIAS = 5V VBIAS = 5V 6.0 VOUT = 5V VOUT = 5V ILOAD = 1A 10 VIN = 12V 5.5 fSW = 700kHz ILOAD = 1A (LT8610AC) (LT8610AC) 8 5.0 4.5 6 4.0 4 BIAS PIN CURRENT (mA) 3.5 BIAS PIN CURRENT (mA) 2 3.0 2.5 0 5 10 15 20 25 30 35 40 45 0 0.5 1 1.5 2 2.5 INPUT VOLTAGE (V) SWITCHING FREQUENCY (MHz) 8610ac1 G30 8610ac1 G31
Switching Waveforms Burst Mode Operation Switching Waveforms
IL I V L 1A/DIV SW 1A/DIV 5V/DIV IL V 500mA/DIV VSW SW 5V/DIV 10V/DIV VOUT 20mV/DIV 500ns/DIV 8610ac1 G32 20µs/DIV 8610ac1 G33 500ns/DIV 8610ac1 G34 12VIN TO 5VOUT AT 1A VSYNC = 0V 36VIN TO 5VOUT AT 1A COUT = 47µF L = 4.7µH Rev. B For more information www.analog.com 7 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts