Datasheet LT3074 (Analog Devices) - 7

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Data Sheet LT3074
(All typical specifications are at TJ (junction temperature). = 25°C and all min. and max. specifications are across the entire operating temperature range, unless otherwise noted. COUT = 22µF, CSETCAP = 4.7µF, CBIASAF = 2.2µF, and CBIASDF = 0.47µF, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS/COMMENTS MIN TYP MAX UNITS
Frequency = 1.4 µV/√Hz 0.1Hz VOUT = 1V, IOUT = Frequency = 10Hz 40 Output Noise Spectral 3A, V V IN = 1.3V, Frequency = Density
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n(OUT) VBIAS = 3.3V, 3.5 10kHz nV/√Hz CSETCAP = 4.7µF Frequency = 3 100kHz Resolution 12 Bits VOUT_FS Full Scale Voltage 6.25 V Output Voltage Accuracy V OUT = 4.2V -1 1 % Readback Zero Code Offset −8 mV tCONV_VOUT Conversion Time TJ = 25°C 4.096 msec tREFRESH_VOUT Refresh Rate TJ = 25°C 9.216 Resolution 12 Bits IOUT_FS Full Scale Current 9.375 A Output Current Accuracy I OUT = 3A −3 3 % Readback Zero Code Offset −12 mA tCONV_IOUT Conversion Time TJ = 25°C 4.096 msec tREFRESH_IOUT Refresh Rate TJ = 25°C 9.216 Resolution 10 Bits VIN_FS Full Scale Voltage 6.25 V Accuracy V Input Voltage Readback IN = 5.5V −1 1 % Zero Code Offset −8 mV tCONV_VIN Conversion Time TJ = 25°C 1.024 msec tREFRESH_VIN Refresh Rate TJ = 25°C 27.648 Resolution 10 Bits VBIAS_FS Full Scale Voltage 6.25 V Accuracy V Bias Voltage Readback BIAS = 5.5V −1 1 % Zero Code Offset -8 mV tCONV_VBIAS Conversion Time TJ = 25°C 1.024 msec tREFRESH_VBIAS Refresh Rate TJ = 25°C 27.648 Resolution 10 Bits Full Scale Temperature 312.5 Temperature Readback Accuracy TJ = 25°C −5 5 °C Zero Code Offset −0.4 tCONV_TEMP Conversion Time TJ = 25°C 1.024 msec
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Rev 0. 7 of 62 Document Outline Features Applications General Description Simplified Application Diagram Revision History Specifications Absolute Maximum Ratings Thermal Resistance Electrostatic Discharge (ESD) ESD Ratings ESD Caution Pin Configurations and Function Descriptions Typical Performance Characteristics Functional Diagrams Applications Information Output Voltage Output Sensing Stability and Output Capacitance High Vibration Environments Stability and Input Capacitance PSRR and Input Capacitance Filtering High Frequency Spikes Output Noise SETCAP Pin Capacitance: Noise, PSRR, Transient Response, and Soft-Start Fast Start Output Voltage Margining BIAS/BIASAF/BIASDF Pin Requirements BIAS Undervoltage Lockout EN/UV Function (Turning the Part ON and OFF) Power Good Indicator Programmable Power Good Current Monitor and Programmable Current Limit Output Overshoot Recovery and Active Discharge Direct Paralleling for Higher Output Current PCB Layout Considerations High Efficiency Linear Regulator – Input-to-Output Voltage Control Thermal Considerations Calculating Junction Temperature Protection Features Serial Bus Addressing Telemetry Readback Fault Reporting and the ALERT pin Bus Timeout TTIMEOUT TLOW:SEXT TLOW:MEXT PMBus Command Details PAGE OPERATION ON_OFF_CONFIG CLEAR_FAULTS WRITE_PROTECT CAPABILITY VOUT_MODE VOUT_OV_WARN_LIMIT VOUT_UV_WARN_LIMIT IOUT_OC_FAULT_LIMIT IOUT_OC_FAULT_RESPONSE OT_WARN_LIMIT VIN_OV_WARN_LIMIT VIN_UV_WARN_LIMIT STATUS_BYTE STATUS_WORD STATUS_VOUT STATUS_IOUT STATUS_INPUT STATUS_TEMPERATURE STATUS_CML STATUS_MFR_SPECIFIC READ_VIN READ_VOUT READ_IOUT READ_TEMPERATURE_1 PMBUS_REVISION IC_DEVICE_ID IC_DEVICE_REV MFR_MARGIN MFR_READ_VBIAS MFR_BIAS_OV_WARN_LIMIT MFR_BIAS_UV_WARN_LIMIT MFR_IOUT_MIN_WARN_LIMIT MFR_SPECIAL_ID MFR_DEFAULT_CONFIG MFR_RAIL_ADDRESS MFR_RESET Typical Application Circuits Outline Dimensions Ordering Guide Evaluation Boards Related Parts