Datasheet LTM4628 (Analog Devices) - 5
| 制造商 | Analog Devices |
| 描述 | Dual 8A or Single 16A DC/DC µModule Regulator |
| 页数 / 页 | 36 / 5 — ELECTRICAL CHARACTERISTICS Note 1:. Note 3:. Note 4:. Note 5:. Note 2:. … |
| 文件格式/大小 | PDF / 1.1 Mb |
| 文件语言 | 英语 |
ELECTRICAL CHARACTERISTICS Note 1:. Note 3:. Note 4:. Note 5:. Note 2:. Note 6:. Note 7:. TYPICAL PERFORMANCE CHARACTERISTICS
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文件文字版本
LTM4628
ELECTRICAL CHARACTERISTICS Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 3:
Two outputs are tested separately and the same testing condition may cause permanent damage to the device. Exposure to any Absolute is applied to each output. Maximum Rating condition for extended periods may affect device
Note 4:
The switching frequency is programmable for 400kHz to 750kHz. reliability and lifetime.
Note 5:
LTM4628 device is designed to operate from 400kHz to 750kHz
Note 2:
The LTM4628 is tested under pulsed load conditions such that
Note 6:
100% tested at wafer level. TJ ≈ TA. The LTM4628E is guaranteed to meet specifications from 0°C to 125°C internal temperature. Specifications over the –40°C to
Note 7:
See output current derating curves for different VIN, VOUT and TA. 125°C internal operating temperature range are assured by design, characterization and correlation with statistical process controls. The LTM4628I is guaranteed over the full –40°C to 125°C internal operating temperature range. Note that the maximum ambient temperature consistent with these specifications is determined by specific operating conditions in conjunction with board layout, the rated package thermal impedance and other environmental factors.
TYPICAL PERFORMANCE CHARACTERISTICS 5VIN Efficiency 12VIN Efficiency 24VIN Efficiency
100 100 95 FREQ = 500kHz FREQ = 500kHz, 700kHz for 3.3V AND 5V FREQ = 500kHz, 700kHz for 3.3V AND 5V 95 95 90 90 85 90 85 80 85 80 75 80 75 70 EFFICIENCY (%) EFFICIENCY (%) 5V 70 OUT EFFICIENCY (%) 65 75 3.3VOUT 3.3VOUT 2.5VOUT 65 2.5VOUT 60 5VOUT 1.5V 1.5V 70 OUT OUT 3.3VOUT 1.2VOUT 60 1.2VOUT 55 2.5VOUT 0.8VOUT 0.8VOUT 1.5VOUT 65 55 50 0 1 2 3 4 5 6 7 8 0 1 2 3 4 5 6 7 8 0 1 2 3 4 5 6 7 8 OUTPUT CURRENT (A) OUTPUT CURRENT (A) OUTPUT CURRENT (A) 4628 G01 4628 G02 4628 G03
Burst Mode Pulse-Skipping Efficiency 0.8V Load Transient 1.2V Load Transient
100 90 Burst Mode OPERATION 80 VOUT VOUT 70 50mV/DIV 50mV/DIV 60 50 40 EFFICIENCY (%) IOUT IOUT 30 2A/DIV 2A/DIV 20 PULSE-SKIPPING MODE 4628 G05 100µs/DIV 4628 G06 100µs/DIV 10 12VIN, 0.8VOUT, 0A TO 4A LOAD STEP AT 4A/µs 12V 0 C IN, 1.2VOUT, 0A TO 4A LOAD STEP AT 4A/µs OUT1 4× 100µF 6.3V X5R CERAMIC 1210 CASE SIZE C 0.001 0.01 0.1 1 10 SWITCHING FREQUENCY 400kHz OUT1, 4× 100µF 6.3V X5R CERAMIC 1210 CASE SIZE SWITCHING FREQUENCY 500kHz C OUTPUT CURRENT (A) FF CAPACITOR = 47pF CFF CAPACITOR = 47pF 4628 G04 4628fe For more information www.linear.com/LTM4628 5 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Simplified Block Diagram Decoupling Requirements Operation Applications Information Typical Applications Package Description Package Photos Revision History Typical Application Related Parts
ELECTRICAL CHARACTERISTICS Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 3:
Two outputs are tested separately and the same testing condition may cause permanent damage to the device. Exposure to any Absolute is applied to each output. Maximum Rating condition for extended periods may affect device
Note 4:
The switching frequency is programmable for 400kHz to 750kHz. reliability and lifetime.
Note 5:
LTM4628 device is designed to operate from 400kHz to 750kHz
Note 2:
The LTM4628 is tested under pulsed load conditions such that
Note 6:
100% tested at wafer level. TJ ≈ TA. The LTM4628E is guaranteed to meet specifications from 0°C to 125°C internal temperature. Specifications over the –40°C to
Note 7:
See output current derating curves for different VIN, VOUT and TA. 125°C internal operating temperature range are assured by design, characterization and correlation with statistical process controls. The LTM4628I is guaranteed over the full –40°C to 125°C internal operating temperature range. Note that the maximum ambient temperature consistent with these specifications is determined by specific operating conditions in conjunction with board layout, the rated package thermal impedance and other environmental factors.
TYPICAL PERFORMANCE CHARACTERISTICS 5VIN Efficiency 12VIN Efficiency 24VIN Efficiency
100 100 95 FREQ = 500kHz FREQ = 500kHz, 700kHz for 3.3V AND 5V FREQ = 500kHz, 700kHz for 3.3V AND 5V 95 95 90 90 85 90 85 80 85 80 75 80 75 70 EFFICIENCY (%) EFFICIENCY (%) 5V 70 OUT EFFICIENCY (%) 65 75 3.3VOUT 3.3VOUT 2.5VOUT 65 2.5VOUT 60 5VOUT 1.5V 1.5V 70 OUT OUT 3.3VOUT 1.2VOUT 60 1.2VOUT 55 2.5VOUT 0.8VOUT 0.8VOUT 1.5VOUT 65 55 50 0 1 2 3 4 5 6 7 8 0 1 2 3 4 5 6 7 8 0 1 2 3 4 5 6 7 8 OUTPUT CURRENT (A) OUTPUT CURRENT (A) OUTPUT CURRENT (A) 4628 G01 4628 G02 4628 G03
Burst Mode Pulse-Skipping Efficiency 0.8V Load Transient 1.2V Load Transient
100 90 Burst Mode OPERATION 80 VOUT VOUT 70 50mV/DIV 50mV/DIV 60 50 40 EFFICIENCY (%) IOUT IOUT 30 2A/DIV 2A/DIV 20 PULSE-SKIPPING MODE 4628 G05 100µs/DIV 4628 G06 100µs/DIV 10 12VIN, 0.8VOUT, 0A TO 4A LOAD STEP AT 4A/µs 12V 0 C IN, 1.2VOUT, 0A TO 4A LOAD STEP AT 4A/µs OUT1 4× 100µF 6.3V X5R CERAMIC 1210 CASE SIZE C 0.001 0.01 0.1 1 10 SWITCHING FREQUENCY 400kHz OUT1, 4× 100µF 6.3V X5R CERAMIC 1210 CASE SIZE SWITCHING FREQUENCY 500kHz C OUTPUT CURRENT (A) FF CAPACITOR = 47pF CFF CAPACITOR = 47pF 4628 G04 4628fe For more information www.linear.com/LTM4628 5 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Simplified Block Diagram Decoupling Requirements Operation Applications Information Typical Applications Package Description Package Photos Revision History Typical Application Related Parts