Datasheet LT3514 (Analog Devices) - 4
| Fabricante | Analog Devices |
| Descripción | Triple Step-Down Switching Regulator with 100% Duty Cycle Operation |
| Páginas / Página | 26 / 4 — ELECTRICAL CHARACTERISTICS. The. denotes the specifications which apply … |
| Formato / tamaño de archivo | PDF / 482 Kb |
| Idioma del documento | Inglés |
ELECTRICAL CHARACTERISTICS. The. denotes the specifications which apply over the full operating
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LT3514
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = 12V unless otherwise noted. SYMBOL CONDITIONS MIN TYP MAX UNITS
PG Voltage Output Low IPG = 250µA 180 300 mV PG Pin Leakage VPG = 2V 0.01 1 µA
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings current for an application circuit is higher than the sum of these two may cause permanent damage to the device. Exposure to any Absolute currents because the SKY voltage is higher than VIN, and there are power Maximum Rating condition for extended periods may affect device losses in the boost regulator. See the Typical Performance Characteristics reliability and lifetime. section for a plot of input quiescent current vs input voltage for a typical
Note 2:
The LT3514E is guaranteed to meet performance specifications application. from 0°C to 125°C junction temperature. Specifications over the –40°C
Note 5:
Current flows out of pin. to 125°C operating junction temperature range are assured by design,
Note 6:
Current limit is guaranteed by design and/or correlation to static characterization and correlation with statistical process controls. The test. Slope compensation reduces current limit at higher duty cycles. LT3514I is guaranteed over the full –40°C to 125°C operating junction
Note 7:
This IC includes overtemperature protection that is intended temperature range. to protect the device during momentary overload conditions. Junction
Note 3:
Current flows into pin. temperature will exceed 125°C when overtemperature protection is active.
Note 4:
The VIN pin quiescent current and the SKY pin quiescent current Continuous operation above the specified maximum operating junction are specified in the Electrical Characteristics table. However, the quiescent temperature may impair device reliability.
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Efficiency, Channel 4, f = 1MHz Efficiency, Channel 4, f = 1MHz Efficiency, Channel 4, f = 1MHz
80 90 90 VOUT = 1.8V VOUT = 2.5V VOUT = 3.3V 70 80 80 60 70 70 60 60 50 50 50 40 40 40 EFFICIENCY (%) 30 EFFICIENCY (%) 30 EFFICIENCY (%) 30 20 VIN = 6V 20 VIN = 6V 20 VIN = 6V VIN = 12V VIN = 12V VIN = 12V 10 VIN = 24V 10 VIN = 24V 10 VIN = 24V VIN = 36V VIN = 36V VIN = 36V 0 0 0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 LOAD CURRENT (A) LOAD CURRENT (A) LOAD CURRENT (A) 314 G01 3514 G02 3514 G03 3514fa 4 For more information www.linear.com/LT3514 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Pin Functions Block Diagram Operation Applications Information Package Description Typical Application Related Parts
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = 12V unless otherwise noted. SYMBOL CONDITIONS MIN TYP MAX UNITS
PG Voltage Output Low IPG = 250µA 180 300 mV PG Pin Leakage VPG = 2V 0.01 1 µA
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings current for an application circuit is higher than the sum of these two may cause permanent damage to the device. Exposure to any Absolute currents because the SKY voltage is higher than VIN, and there are power Maximum Rating condition for extended periods may affect device losses in the boost regulator. See the Typical Performance Characteristics reliability and lifetime. section for a plot of input quiescent current vs input voltage for a typical
Note 2:
The LT3514E is guaranteed to meet performance specifications application. from 0°C to 125°C junction temperature. Specifications over the –40°C
Note 5:
Current flows out of pin. to 125°C operating junction temperature range are assured by design,
Note 6:
Current limit is guaranteed by design and/or correlation to static characterization and correlation with statistical process controls. The test. Slope compensation reduces current limit at higher duty cycles. LT3514I is guaranteed over the full –40°C to 125°C operating junction
Note 7:
This IC includes overtemperature protection that is intended temperature range. to protect the device during momentary overload conditions. Junction
Note 3:
Current flows into pin. temperature will exceed 125°C when overtemperature protection is active.
Note 4:
The VIN pin quiescent current and the SKY pin quiescent current Continuous operation above the specified maximum operating junction are specified in the Electrical Characteristics table. However, the quiescent temperature may impair device reliability.
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Efficiency, Channel 4, f = 1MHz Efficiency, Channel 4, f = 1MHz Efficiency, Channel 4, f = 1MHz
80 90 90 VOUT = 1.8V VOUT = 2.5V VOUT = 3.3V 70 80 80 60 70 70 60 60 50 50 50 40 40 40 EFFICIENCY (%) 30 EFFICIENCY (%) 30 EFFICIENCY (%) 30 20 VIN = 6V 20 VIN = 6V 20 VIN = 6V VIN = 12V VIN = 12V VIN = 12V 10 VIN = 24V 10 VIN = 24V 10 VIN = 24V VIN = 36V VIN = 36V VIN = 36V 0 0 0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 LOAD CURRENT (A) LOAD CURRENT (A) LOAD CURRENT (A) 314 G01 3514 G02 3514 G03 3514fa 4 For more information www.linear.com/LT3514 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Pin Functions Block Diagram Operation Applications Information Package Description Typical Application Related Parts