Datasheet LTM4643 (Analog Devices) - 4
| Fabricante | Analog Devices |
| Descripción | Ultrathin Quad μModule Regulator with Configurable 3A Output Array |
| Páginas / Página | 32 / 4 — ELECTRICAL CHARACTERISTICS. Note 1:. Note 2:. Note 3:. Note 4:. Note 5:. … |
| Revisión | D |
| Formato / tamaño de archivo | PDF / 2.3 Mb |
| Idioma del documento | Inglés |
ELECTRICAL CHARACTERISTICS. Note 1:. Note 2:. Note 3:. Note 4:. Note 5:. TYPICAL PERFORMANCE CHARACTERISTICS (Per Channel)
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LTM4643
ELECTRICAL CHARACTERISTICS Note 1:
Stresses beyond those listed under Absolute Maximum Ratings operating temperature range. Note that the maximum ambient temperature may cause permanent damage to the device. Exposure to any Absolute consistent with these specifications is determined by specific operating Maximum Rating condition for extended periods may affect device conditions in conjunction with board layout, the rated package thermal reliability and lifetime. resistance and other environmental factors.
Note 2:
The LTM4643 is tested under pulsed load conditions such that
Note 3:
100% tested at wafer level. TJ ≈ TA. The LTM4643E is guaranteed to meet performance specifications
Note 4:
See output current derating curves for different VIN, VOUT and TA. over the 0°C to 125°C internal operating temperature range. Specifications
Note 5:
This IC includes overtemperature protection that is intended over the full –40°C to 125°C internal operating temperature range are to protect the device during momentary overload conditions. Junction assured by design, characterization and correlation with statistical process temperature will exceed 125°C when overtemperature protection is active. controls. The LTM4643I is guaranteed to meet specifications over the full Continuous operation above the specified maximum operating junction –40°C to 125°C internal operating temperature range. The LTM4643MP temperature may impair device reliability. is guaranteed to meet specifications over the full –55°C to 125°C internal
TYPICAL PERFORMANCE CHARACTERISTICS (Per Channel) Efficiency vs Load Current from Efficiency vs Load Current from DCM Mode Efficiency from 5VIN (One Channel Operating) 12VIN (One Channel Operating) 1.5VOUT
100 95 100 95 90 90 80 90 85 70 85 80 60 80 75 50 40 EFFICIENCY (%) 75 3.3VOUT EFFICIENCY (%) 70 3.3VOUT EFFICIENCY (%) 2.5V 2.5V 30 70 OUT OUT 1.8V 65 OUT 1.8VOUT 1.5V 1.5V 20 65 OUT OUT 1.2V 60 5V OUT 1.2VOUT 10 IN 1.0V 1.0V 12VIN 60 OUT 55 OUT 0 0 0.5 1 1.5 2 2.5 3 0 0.5 1 1.5 2 2.5 3 0.001 0.01 0.1 1 10 OUTPUT CURRENT (A) OUTPUT CURRENT (A) LOAD CURRENT (A) 4643 G01 4643 G02 4643 G03
1.0V Output Transient Response 1.2V Output Transient Response 1.5V Output Transient Response
VOUT VOUT VOUT 50mV/DIV 50mV/DIV 50mV/DIV AC-COUPLED AC-COUPLED AC-COUPLED LOAD STEP LOAD STEP 1A/DIV LOAD STEP 1A/DIV 1A/DIV VIN = 12V 20µs/DIV 4643 G04 VIN = 12V 20µs/DIV 4643 G05 VIN = 12V 20µs/DIV 4643 G06 VOUT = 1.0V VOUT = 1.2V VOUT = 1.5V OUTPUT CAPACITOR = 1 × 47µF CERAMIC CAP OUTPUT CAPACITOR = 1 × 47µF CERAMIC CAP OUTPUT CAPACITOR = 1 × 47µF CERAMIC CAP LOAD STEP = 2A TO 3A WITH 1A/µS SLEW RATE LOAD STEP = 2A TO 3A WITH 1A/µS SLEW RATE LOAD STEP = 2A TO 3A WITH 1A/µS SLEW RATE FEED FORWARD CAP = 100pF FEED FORWARD CAP = 100pF FEED FORWARD CAP = 100pF Rev D 4 For more information www.analog.com Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Decoupling Requirements Operation Applications Information Typical Applications Package Description Package Photo Related Parts
ELECTRICAL CHARACTERISTICS Note 1:
Stresses beyond those listed under Absolute Maximum Ratings operating temperature range. Note that the maximum ambient temperature may cause permanent damage to the device. Exposure to any Absolute consistent with these specifications is determined by specific operating Maximum Rating condition for extended periods may affect device conditions in conjunction with board layout, the rated package thermal reliability and lifetime. resistance and other environmental factors.
Note 2:
The LTM4643 is tested under pulsed load conditions such that
Note 3:
100% tested at wafer level. TJ ≈ TA. The LTM4643E is guaranteed to meet performance specifications
Note 4:
See output current derating curves for different VIN, VOUT and TA. over the 0°C to 125°C internal operating temperature range. Specifications
Note 5:
This IC includes overtemperature protection that is intended over the full –40°C to 125°C internal operating temperature range are to protect the device during momentary overload conditions. Junction assured by design, characterization and correlation with statistical process temperature will exceed 125°C when overtemperature protection is active. controls. The LTM4643I is guaranteed to meet specifications over the full Continuous operation above the specified maximum operating junction –40°C to 125°C internal operating temperature range. The LTM4643MP temperature may impair device reliability. is guaranteed to meet specifications over the full –55°C to 125°C internal
TYPICAL PERFORMANCE CHARACTERISTICS (Per Channel) Efficiency vs Load Current from Efficiency vs Load Current from DCM Mode Efficiency from 5VIN (One Channel Operating) 12VIN (One Channel Operating) 1.5VOUT
100 95 100 95 90 90 80 90 85 70 85 80 60 80 75 50 40 EFFICIENCY (%) 75 3.3VOUT EFFICIENCY (%) 70 3.3VOUT EFFICIENCY (%) 2.5V 2.5V 30 70 OUT OUT 1.8V 65 OUT 1.8VOUT 1.5V 1.5V 20 65 OUT OUT 1.2V 60 5V OUT 1.2VOUT 10 IN 1.0V 1.0V 12VIN 60 OUT 55 OUT 0 0 0.5 1 1.5 2 2.5 3 0 0.5 1 1.5 2 2.5 3 0.001 0.01 0.1 1 10 OUTPUT CURRENT (A) OUTPUT CURRENT (A) LOAD CURRENT (A) 4643 G01 4643 G02 4643 G03
1.0V Output Transient Response 1.2V Output Transient Response 1.5V Output Transient Response
VOUT VOUT VOUT 50mV/DIV 50mV/DIV 50mV/DIV AC-COUPLED AC-COUPLED AC-COUPLED LOAD STEP LOAD STEP 1A/DIV LOAD STEP 1A/DIV 1A/DIV VIN = 12V 20µs/DIV 4643 G04 VIN = 12V 20µs/DIV 4643 G05 VIN = 12V 20µs/DIV 4643 G06 VOUT = 1.0V VOUT = 1.2V VOUT = 1.5V OUTPUT CAPACITOR = 1 × 47µF CERAMIC CAP OUTPUT CAPACITOR = 1 × 47µF CERAMIC CAP OUTPUT CAPACITOR = 1 × 47µF CERAMIC CAP LOAD STEP = 2A TO 3A WITH 1A/µS SLEW RATE LOAD STEP = 2A TO 3A WITH 1A/µS SLEW RATE LOAD STEP = 2A TO 3A WITH 1A/µS SLEW RATE FEED FORWARD CAP = 100pF FEED FORWARD CAP = 100pF FEED FORWARD CAP = 100pF Rev D 4 For more information www.analog.com Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Decoupling Requirements Operation Applications Information Typical Applications Package Description Package Photo Related Parts