Datasheet LT8602 (Analog Devices) - 9
| Hersteller | Analog Devices |
| Beschreibung | 42V Quad Monolithic Synchronous Step-Down Regulator |
| Seiten / Seite | 30 / 9 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VIN = PVIN1 = PVIN2 = 12V, … |
| Revision | C |
| Dateiformat / Größe | PDF / 2.7 Mb |
| Dokumentensprache | Englisch |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VIN = PVIN1 = PVIN2 = 12V, EN/UVLO = 3V
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LT8602
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VIN = PVIN1 = PVIN2 = 12V, EN/UVLO = 3V and PVIN3 = PVIN4 = 3.3V, unless otherwise noted. Channel 2 Full Frequency Channel 3, 4 Full Frequency Channel 1 Start-Up and Dropout, VIN vs Load Current VIN vs Load Current RL = 20Ω
45 6.0 RT = 28.9k RT = 28.9k 40 5.5 VIN 35 5.0 V 30 OUT = 3.3V V FULL FREQUENCY OUT = 5V 4.5 REGION (2MHz) 2V/DIV VOUT1 25 (V) (V) 4.0 V IN 20 V IN FULL FREQUENCY 3.5 15 REGION (2MHz) VOUT = 1.8V V 10 3.0 OUT = 1.2V 100ms/DIV 8602 G29 5 2.5 0 2.0 0 0.3 0.7 1 1.3 1.6 1.9 2.3 2.6 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 IOUT (A) IOUT (A) 8602 G28 8602 G29
Channel 1 Start-Up and Dropout, Channel 2 Start-Up and Dropout, Channel 2 Start-Up and RL = 3.3Ω RL = 20Ω Dropout, RL = 2Ω
VIN VIN VIN 2V/DIV VOUT1 2V/DIV VOUT2 2V/DIV VOUT2 100ms/DIV 8602 G30 100ms/DIV 8602 G32 100ms/DIV 8602 G33
Full Frequency Waveforms Light Load Waveforms
VSW1 VOUT 10V/DIV 20mV/DIV VSW2 10V/DIV VSW 5V/DIV VSW3 2V/DIV V I SW4 L 2V/DIV 0.5A/DIV 200ns/DIV 8602 G34 5µs/DIV 8602 G35 VOUT1 = 5V CHANNEL 1 VOUT2 = 3.3V 12VIN TO 5VOUT AT 10mA VOUT3 = 1.8V VSYNC = 0V VOUT4 = 1.2V Rev. C For more information www.analog.com 9 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Package Description Revision History Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VIN = PVIN1 = PVIN2 = 12V, EN/UVLO = 3V and PVIN3 = PVIN4 = 3.3V, unless otherwise noted. Channel 2 Full Frequency Channel 3, 4 Full Frequency Channel 1 Start-Up and Dropout, VIN vs Load Current VIN vs Load Current RL = 20Ω
45 6.0 RT = 28.9k RT = 28.9k 40 5.5 VIN 35 5.0 V 30 OUT = 3.3V V FULL FREQUENCY OUT = 5V 4.5 REGION (2MHz) 2V/DIV VOUT1 25 (V) (V) 4.0 V IN 20 V IN FULL FREQUENCY 3.5 15 REGION (2MHz) VOUT = 1.8V V 10 3.0 OUT = 1.2V 100ms/DIV 8602 G29 5 2.5 0 2.0 0 0.3 0.7 1 1.3 1.6 1.9 2.3 2.6 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 IOUT (A) IOUT (A) 8602 G28 8602 G29
Channel 1 Start-Up and Dropout, Channel 2 Start-Up and Dropout, Channel 2 Start-Up and RL = 3.3Ω RL = 20Ω Dropout, RL = 2Ω
VIN VIN VIN 2V/DIV VOUT1 2V/DIV VOUT2 2V/DIV VOUT2 100ms/DIV 8602 G30 100ms/DIV 8602 G32 100ms/DIV 8602 G33
Full Frequency Waveforms Light Load Waveforms
VSW1 VOUT 10V/DIV 20mV/DIV VSW2 10V/DIV VSW 5V/DIV VSW3 2V/DIV V I SW4 L 2V/DIV 0.5A/DIV 200ns/DIV 8602 G34 5µs/DIV 8602 G35 VOUT1 = 5V CHANNEL 1 VOUT2 = 3.3V 12VIN TO 5VOUT AT 10mA VOUT3 = 1.8V VSYNC = 0V VOUT4 = 1.2V Rev. C For more information www.analog.com 9 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Package Description Revision History Typical Application Related Parts