Datasheet LT8630 (Analog Devices) - 6
| Manufacturer | Analog Devices |
| Description | 100V, 0.6A Synchronous Micropower Step-Down High Efficiency Switching Regulator |
| Pages / Page | 24 / 6 — Typical perForMance characTerisTics. Line Regulation. Load Regulation. FB … |
| File Format / Size | PDF / 1.0 Mb |
| Document Language | English |
Typical perForMance characTerisTics. Line Regulation. Load Regulation. FB to TR/SS Offset Voltage. Soft-Start Tracking
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Text Version of Document
LT8630
Typical perForMance characTerisTics Line Regulation Load Regulation FB to TR/SS Offset Voltage
1.0 1.0 8 VOUT = 5V VIN = 12V LOAD = 0.5A VOUT = 5V 7 0.5 0.5 6 (%) (%) 5 OUT OUT (mV) 0.0 0 TR/SS 4 – V 3 V FB CHANGE IN V CHANGE IN V –0.5 –0.5 2 1 VTR/SS = 0.4V LOAD = 0.5A –1.0 –1.0 0 0 25 50 75 100 0 0.20 0.40 0.60 0.80 –50 –25 0 25 50 75 100 125 150 INPUT VOLTAGE (V) LOAD CURRENT (A) TEMPERATURE (°C) 8630 G19 8630 G20 8630 G21
Soft-Start Tracking PG High Thresholds PG Low Thresholds
1.0 12 –5 LOAD = 0.5A 0.9 11 –6 0.8 0.7 (%) 10 (%) –7 REF REF 0.6 9 –8 TAGE (V) 0.5 0.4 8 –9 FB VOL 0.3 7 –10 0.2 PG OFFSET FROM V PG OFFSET FROM V 6 –11 0.1 VFB RISING VFB RISING V V 0 5 FB FALLING –12 FB FALLING 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 TR/SS VOLTAGE (V) TEMPERATURE (°C) TEMPERATURE (°C) 8630 G22 8630 G23 8630 G24
Dropout Voltage Output Current Limit Burst Waveforms
11.90 0.95 VIN 12V V 11.80 OUT SET TO 12V 0.93 VSW 0.91 10V/DIV 11.70 0.89 11.60 0.87 TAGE (V) VOUT 11.50 20mV/DIV 0.85 11.40 0.83 IL OUTPUT VOL 0.81 11.30 OUTPUT CURRENT (A) 200mA/DIV 0.79 8630 G27 11.20 5µs/DIV 0.77 L = 22µH FRONT PAGE APPLICATION 11.10 0.75 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 VIN = 24V 0 10 20 30 40 50 60 70 80 90 100 LOAD = 10mA LOAD CURRENT (A) INPUT VOLTAGE (V) 8630 G25 8630 G26 FRONT PAGE APPLICATION 8630f 6 For more information www.linear.com/LT8630 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Application Related Parts
Typical perForMance characTerisTics Line Regulation Load Regulation FB to TR/SS Offset Voltage
1.0 1.0 8 VOUT = 5V VIN = 12V LOAD = 0.5A VOUT = 5V 7 0.5 0.5 6 (%) (%) 5 OUT OUT (mV) 0.0 0 TR/SS 4 – V 3 V FB CHANGE IN V CHANGE IN V –0.5 –0.5 2 1 VTR/SS = 0.4V LOAD = 0.5A –1.0 –1.0 0 0 25 50 75 100 0 0.20 0.40 0.60 0.80 –50 –25 0 25 50 75 100 125 150 INPUT VOLTAGE (V) LOAD CURRENT (A) TEMPERATURE (°C) 8630 G19 8630 G20 8630 G21
Soft-Start Tracking PG High Thresholds PG Low Thresholds
1.0 12 –5 LOAD = 0.5A 0.9 11 –6 0.8 0.7 (%) 10 (%) –7 REF REF 0.6 9 –8 TAGE (V) 0.5 0.4 8 –9 FB VOL 0.3 7 –10 0.2 PG OFFSET FROM V PG OFFSET FROM V 6 –11 0.1 VFB RISING VFB RISING V V 0 5 FB FALLING –12 FB FALLING 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 TR/SS VOLTAGE (V) TEMPERATURE (°C) TEMPERATURE (°C) 8630 G22 8630 G23 8630 G24
Dropout Voltage Output Current Limit Burst Waveforms
11.90 0.95 VIN 12V V 11.80 OUT SET TO 12V 0.93 VSW 0.91 10V/DIV 11.70 0.89 11.60 0.87 TAGE (V) VOUT 11.50 20mV/DIV 0.85 11.40 0.83 IL OUTPUT VOL 0.81 11.30 OUTPUT CURRENT (A) 200mA/DIV 0.79 8630 G27 11.20 5µs/DIV 0.77 L = 22µH FRONT PAGE APPLICATION 11.10 0.75 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 VIN = 24V 0 10 20 30 40 50 60 70 80 90 100 LOAD = 10mA LOAD CURRENT (A) INPUT VOLTAGE (V) 8630 G25 8630 G26 FRONT PAGE APPLICATION 8630f 6 For more information www.linear.com/LT8630 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Application Related Parts
