LT3050EDDB LINER [Linear Technology], LT3050EDDB Datasheet
LT3050EDDB
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LT3050EDDB Summary of contents
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Linear Regulator With Precision Current FEATURES n Output Current: 100mA n Dropout Voltage: 340mV n Input Voltage Range: 1.6V to 45V n Programmable Precision Current Limit: ±5% n Programmable Minimum I Monitor OUT th n Output Current Monitor: 1/100 n ...
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... LT3050IMSE LT3050IMSE#TR LT3050MPMSE LT3050MPMSE#TR LT3050EDDB LT3050EDDB#TR LT3050IDDB LT3050IDDB#TR Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi label on the shipping container. For more information on lead free part marking, go to: For more information on tape and reel specifi cations, go to: ...
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ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T PARAMETER Minimum Input Voltage (Notes 3, 11) ADJ Pin Voltage (Notes 3, 4) Line Regulation (Note 3) Load Regulation (Note 3) Dropout Voltage (Notes ...
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LT3050 ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T PARAMETER Minimum I Threshold Accuracy (Note 9) MIN I Threshold Accuracy (Note 9) MIN Current Monitor Ratio (Note10) Ratio = I /I OUT MON 5V, ...
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TYPICAL PERFORMANCE CHARACTERISTICS Typical Dropout Voltage 600 550 500 450 T ≤ 125°C J 400 350 300 250 T ≤ 25°C J 200 150 100 100 OUTPUT CURRENT ...
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LT3050 TYPICAL PERFORMANCE CHARACTERISTICS SHDN Pin Input Current 3 45V SHDN 2.5 2.0 1.5 1.0 0.5 0 –75 –50 – 100 125 150 175 TEMPERATURE (°C) 3050 G10 Internal Current Limit 350 V = ...
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TYPICAL PERFORMANCE CHARACTERISTICS Input Ripple Rejection 10μF OUT C = 2.2μF 80 OUT 100mA 100pF REF/BYP OUT V = 5.8V + 50mV ...
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LT3050 TYPICAL PERFORMANCE CHARACTERISTICS 5V 10Hz to 100kHz Output Noise REF/BYP V OUT 500μV/DIV 3050 G27 C = 10μF 1ms/DIV OUT I = 100mA L Transient Response (Load Dump) V OUT 20mV/DIV OUT V ...
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TYPICAL PERFORMANCE CHARACTERISTICS Minimum Output Current Threshold R = 11.3k IMIN 11. OUT 10.75 10.50 10. 15V IN 10. 12V 5.6V 9.75 IN 9.50 9.25 9.00 –75 –50 –25 0 ...
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LT3050 PIN FUNCTIONS REF/BYP (Pin 1): Bypass/Soft-Start. Connecting a single capacitor from this pin to GND bypasses the LT3050’s reference noise and soft-starts the reference. A 10nF bypass capacitor typically reduces output voltage noise to 30μ 10Hz to ...
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PIN FUNCTIONS For detailed information on how to set the I value, please see the Operation section. The I pin requires a 10nF decoupling capacitor to MAX ground. If not used, tie I to GND. MAX I (Pin 12): Output ...
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LT3050 OPERATION I Pin Operation (Current Monitor) MON The I pin is the collector of a PNP which mirrors the MON LT3050 output PNP at a ratio of 1:100 (see block diagram on page 11). The current sourced by the ...
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OPERATION External Programmable Current Limit (I The I pin is the collector of a PNP which mirrors the MAX LT3050 output at a ratio of approximately 1:200 (see Block Diagram). The I pin is also the input to the precision ...
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LT3050 APPLICATIONS INFORMATION The LT3050 is a micropower, low noise and low dropout voltage, 100mA linear regulator with micropower shutdown, programmable current limit, and diagnostic functions. The device supplies up to 100mA at a typical dropout voltage of 340mV and ...
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APPLICATIONS INFORMATION Table 1 shows 1% resistor divider values for some common output voltages with a resistor divider current of 5μA. Table 1. Output Voltage Resistor Divider Valves V (V) R1 (kΩ) OUT 1.2 118 1.5 121 1.8 124 2.5 ...
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LT3050 APPLICATIONS INFORMATION 20 BOTH CAPACITORS ARE 16V, 1210 CASE SIZE, 10μF 0 X5R –20 –40 –60 Y5V –80 –100 BIAS VOLTAGE (V) Figure 2. Ceramic Capacitor DC Bias Characteristics ...
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APPLICATIONS INFORMATION Thermal Considerations The LT3050’s maximum rated junction temperature of 125°C limits its power handling capability. Two components comprise the power dissipated by the device: 1. Output current multiplied by the input/output voltage differential: I • (V OUT 2. ...
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LT3050 APPLICATIONS INFORMATION Protection Features The LT3050 incorporates several protection features that make it ideal for use in battery-powered circuits. In addition to the normal protection features associated with monolithic regulators, such as current limiting and thermal limiting, the device ...
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PACKAGE DESCRIPTION 0.64 ±0.05 (2 SIDES) 0.70 ±0.05 2.55 ±0.05 1.15 ±0.05 0.25 ± 0.05 0.45 BSC 2.39 ±0.05 (2 SIDES) RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS APPLY SOLDER MASK TO AREAS THAT ARE NOT SOLDERED 2.845 0.102 (.112 .004) ...
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LT3050 TYPICAL APPLICATION 5V Protected Antenna Supply with 100mA Current Limit, 10mA I 12V 1μ 1.15k 10nF (THRESHOLD = 100mA) 11.3k 0.1μF (THRESHOLD = 10mA) RELATED PARTS PART DESCRIPTION NUMBER LT1761 100mA, Low Noise LDO LT1762 150mA, Low ...