Datasheet LTM8074 (Analog Devices) - 3
| Hersteller | Analog Devices |
| Beschreibung | 40VIN, 1.2A Silent Switcher µModule Regulator |
| Seiten / Seite | 22 / 3 — ELECTRICAL CHARACTERISTICS. The. denotes the specifications which apply … |
| Revision | A |
| Dateiformat / Größe | PDF / 2.9 Mb |
| Dokumentensprache | Englisch |
ELECTRICAL CHARACTERISTICS. The. denotes the specifications which apply over the specified operating
Textversion des Dokuments
LTM8074
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the specified operating temperature range, otherwise specifications are at TJ = 25°C. VIN = 12V, RUN = 2V, unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX UNITS
Minimum Input Voltage VIN Rising l 3.2 V Output DC Voltage RFB Open 0.8 V RFB = 17.4kΩ, VIN = 40V 12 V Peak Output DC Current VOUT = 3.3V, fSW = 1.0MHz 1.75 A Quiescent Current into VIN RUN = 0V 3 µA No Load, SYNC = 0V, Not Switching 8 µA Line Regulation 5.5V < VIN < 36V, IOUT = 1.2A 0.5 0.8 % Load Regulation 0.1A < IOUT < 1.2A 0.5 0.8 % Output Voltage Ripple IOUT = 1.2A 15 mV Switching Frequency RT = 221kΩ, VIN = 5V 200 kHz RT = 40.2kΩ 1 MHz RT = 16.2kΩ 2.2 MHz Voltage at FB l 760 774 786 mV RUN Threshold Voltage 0.9 1.2 V RUN Current 1 µA TR/SS Current TR/SS = 0V 2 µA TR/SS Pull Down TR/SS = 0.1V 300 Ω PG Threshold Voltage at FB (Upper) FB Falling (Note 5) 0.84 V PG Threshold Voltage at FB (Lower) FB Rising (Note 5) 0.7 V PG Leakage Current PG = 42V 1 µA PG Sink Current PG = 0.1V 150 µA SYNC Threshold Voltage Synchronization 0.4 1.5 V SYNC Voltage To Enable Spread Spectrum 2.9 4.2 V SYNC Current SYNC = 2V 5 µA
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 4:
The LTM8074 contains overtemperature protection that is may cause permanent damage to the device. Exposure to any Absolute intended to protect the device during momentary overload conditions. The Maximum Rating condition for extended periods may affect device internal temperature exceeds the maximum operating junction temperature reliability and lifetime. when the overtemperature protection is active. Continuous operation
Note 2:
Unless otherwise noted, the absolute minimum voltage is zero. above the specified maximum operating junction temperature may impair
Note 3:
The LTM8074E is guaranteed to meet performance specifications device reliability. from 0°C to 125°C internal. Specifications over the full –40°C to
Note 5:
PG transitions from low to high. 125°C internal operating temperature range are assured by design, characterization and correlation with statistical process controls. The LTM8074I is guaranteed to meet specifications over the full –40°C to 125°C internal operating temperature range. Note that the maximum internal temperature is determined by specific operating conditions in conjunction with board layout, the rated package thermal resistance and other environmental factors. Rev. 0 For more information www.analog.com 3 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Package Photo Package Description Typical Application Related Parts
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the specified operating temperature range, otherwise specifications are at TJ = 25°C. VIN = 12V, RUN = 2V, unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX UNITS
Minimum Input Voltage VIN Rising l 3.2 V Output DC Voltage RFB Open 0.8 V RFB = 17.4kΩ, VIN = 40V 12 V Peak Output DC Current VOUT = 3.3V, fSW = 1.0MHz 1.75 A Quiescent Current into VIN RUN = 0V 3 µA No Load, SYNC = 0V, Not Switching 8 µA Line Regulation 5.5V < VIN < 36V, IOUT = 1.2A 0.5 0.8 % Load Regulation 0.1A < IOUT < 1.2A 0.5 0.8 % Output Voltage Ripple IOUT = 1.2A 15 mV Switching Frequency RT = 221kΩ, VIN = 5V 200 kHz RT = 40.2kΩ 1 MHz RT = 16.2kΩ 2.2 MHz Voltage at FB l 760 774 786 mV RUN Threshold Voltage 0.9 1.2 V RUN Current 1 µA TR/SS Current TR/SS = 0V 2 µA TR/SS Pull Down TR/SS = 0.1V 300 Ω PG Threshold Voltage at FB (Upper) FB Falling (Note 5) 0.84 V PG Threshold Voltage at FB (Lower) FB Rising (Note 5) 0.7 V PG Leakage Current PG = 42V 1 µA PG Sink Current PG = 0.1V 150 µA SYNC Threshold Voltage Synchronization 0.4 1.5 V SYNC Voltage To Enable Spread Spectrum 2.9 4.2 V SYNC Current SYNC = 2V 5 µA
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 4:
The LTM8074 contains overtemperature protection that is may cause permanent damage to the device. Exposure to any Absolute intended to protect the device during momentary overload conditions. The Maximum Rating condition for extended periods may affect device internal temperature exceeds the maximum operating junction temperature reliability and lifetime. when the overtemperature protection is active. Continuous operation
Note 2:
Unless otherwise noted, the absolute minimum voltage is zero. above the specified maximum operating junction temperature may impair
Note 3:
The LTM8074E is guaranteed to meet performance specifications device reliability. from 0°C to 125°C internal. Specifications over the full –40°C to
Note 5:
PG transitions from low to high. 125°C internal operating temperature range are assured by design, characterization and correlation with statistical process controls. The LTM8074I is guaranteed to meet specifications over the full –40°C to 125°C internal operating temperature range. Note that the maximum internal temperature is determined by specific operating conditions in conjunction with board layout, the rated package thermal resistance and other environmental factors. Rev. 0 For more information www.analog.com 3 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Package Photo Package Description Typical Application Related Parts