Datasheet LT3080 (Analog Devices) - 7
| Manufacturer | Analog Devices |
| Description | Adjustable 1.1A Single Resistor Low Dropout Regulator |
| Pages / Page | 28 / 7 — TYPICAL PERFORMANCE CHARACTERISTICS. Residual Output Voltage with. … |
| Revision | D |
| File Format / Size | PDF / 1.4 Mb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS. Residual Output Voltage with. CONTROL Pin Current. Less Than Minimum Load
Model Line for this Datasheet
- LT3080EDD#PBF LT3080EDD#TRPBF LT3080EMS8E#PBF LT3080EMS8E#TRPBF LT3080EQ#PBF LT3080EQ#TRPBF LT3080EST#PBF LT3080EST#TRPBF LT3080EST#WPBF LT3080EST#WTRPBF LT3080ET#31PBF LT3080ET#PBF LT3080IDD#PBF LT3080IDD#TRPBF LT3080IMS8E#PBF LT3080IMS8E#TRPBF LT3080IQ#PBF LT3080IQ#TRPBF LT3080IST#PBF LT3080IST#TRPBF LT3080IST#WPBF LT3080IST#WTRPBF LT3080IT#PBF
Text Version of Document
LT3080
TYPICAL PERFORMANCE CHARACTERISTICS Residual Output Voltage with V V CONTROL Pin Current CONTROL Pin Current Less Than Minimum Load
25 30 0.8 VCONTROL – VOUT = 2V SET PIN = 0V VIN – VOUT = 1V 0.7 V 25 IN VOUT 20 ILOAD = 1.1A RTEST 0.6 DEVICE IN CURRENT LIMIT 20 0.5 15 TJ = –50°C TAGE (V) VIN = 10V 15 0.4 VIN = 20V 10 0.3 10 TJ = 25°C V OUTPUT VOL IN = 5V 0.2 CONTROL PIN CURRENT (mA) 5 CONTROL PIN CURRENT (mA) T 5 J = 125°C I 0.1 LOAD = 1mA 0 0 0 0 6 12 18 24 30 36* 0 0.2 0.4 0.6 0.8 1.0 1.2 0 1k 2k INPUT-TO-OUTPUT DIFFERENTIAL (V) LOAD CURRENT (A) RTEST (Ω) *SEE NOTE 9 IN ELECTRICAL 3080 G19 3080 G20 3080 G21 CHARACTERISTICS TABLE
Ripple Rejection, Dual Supply, Ripple Rejection, Dual Supply, Ripple Rejection, Single Supply VCONTROL Pin IN Pin
100 100 100 90 90 90 80 80 80 I I 70 LOAD = 100mA 70 LOAD = 100mA 70 ILOAD = 1.1A ILOAD = 1.1A 60 60 60 50 50 50 40 40 40 30 30 30 VIN = VOUT (NOMINAL) + 1V RIPPLE REJECTION (dB) RIPPLE REJECTION (dB) V RIPPLE REJECTION (dB) VCONTROL = VOUT (NOMINAL) +2V 20 IN = VOUT (NOMINAL) + 1V V 20 20 IN = VCONTROL = VOUT (NOMINAL) + 2V VCONTROL = VOUT (NOMINAL) +2V RIPPLE = 50mVP-P 10 RIPPLE = 50mVP-P 10 COUT = 2.2µF CERAMIC 10 COUT = 2.2µF CERAMIC COUT = 2.2µF CERAMIC RIPPLE = 50mVP-P ILOAD = 1.1A 0 0 0 10 100 1k 10k 100k 1M 10 100 1k 10k 100k 1M 10 100 1k 10k 100k 1M FREQUENCY (Hz) FREQUENCY (Hz) FREQUENCY (Hz) 3080 G22 3080 G23 3080 G24
Ripple Rejection (120Hz) Noise Spectral Density
80 10k 1k 79 SPECTRAL DENSITY ( 78 ) REFERENCE CURRENT NOISE Hz 1k 100 77 76 75 100 10 74 pA/ √ 73 SINGLE SUPPLY OPERATION RIPPLE REJECTION (dB) V ERROR AMPLIFIER NOISE 10 1.0 Hz 72 IN = VOUT(NOMINAL) + 2V ) RIPPLE = 500mV SPECTRAL DENSITY (nV/√ P-P, f = 120Hz 71 ILOAD = 1.1A CSET = 0.1µF, COUT = 2.2µF 70 1 0.1 –50 –25 0 25 50 75 100 125 150 10 100 1k 10k 100k TEMPERATURE (°C) FREQUENCY (Hz) 3080 G25 3080 G26 Rev. D For more information www.analog.com 7 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Output Voltage Stability and Output Capacitance Paralleling Devices Thermal Performance Quieting the Noise Overload Recovery Load Regulation Thermal Considerations T Package, 5-Lead TO-220 Calculating Junction Temperature Reducing Power Dissipation Typical Applications Package Description Revision History Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS Residual Output Voltage with V V CONTROL Pin Current CONTROL Pin Current Less Than Minimum Load
25 30 0.8 VCONTROL – VOUT = 2V SET PIN = 0V VIN – VOUT = 1V 0.7 V 25 IN VOUT 20 ILOAD = 1.1A RTEST 0.6 DEVICE IN CURRENT LIMIT 20 0.5 15 TJ = –50°C TAGE (V) VIN = 10V 15 0.4 VIN = 20V 10 0.3 10 TJ = 25°C V OUTPUT VOL IN = 5V 0.2 CONTROL PIN CURRENT (mA) 5 CONTROL PIN CURRENT (mA) T 5 J = 125°C I 0.1 LOAD = 1mA 0 0 0 0 6 12 18 24 30 36* 0 0.2 0.4 0.6 0.8 1.0 1.2 0 1k 2k INPUT-TO-OUTPUT DIFFERENTIAL (V) LOAD CURRENT (A) RTEST (Ω) *SEE NOTE 9 IN ELECTRICAL 3080 G19 3080 G20 3080 G21 CHARACTERISTICS TABLE
Ripple Rejection, Dual Supply, Ripple Rejection, Dual Supply, Ripple Rejection, Single Supply VCONTROL Pin IN Pin
100 100 100 90 90 90 80 80 80 I I 70 LOAD = 100mA 70 LOAD = 100mA 70 ILOAD = 1.1A ILOAD = 1.1A 60 60 60 50 50 50 40 40 40 30 30 30 VIN = VOUT (NOMINAL) + 1V RIPPLE REJECTION (dB) RIPPLE REJECTION (dB) V RIPPLE REJECTION (dB) VCONTROL = VOUT (NOMINAL) +2V 20 IN = VOUT (NOMINAL) + 1V V 20 20 IN = VCONTROL = VOUT (NOMINAL) + 2V VCONTROL = VOUT (NOMINAL) +2V RIPPLE = 50mVP-P 10 RIPPLE = 50mVP-P 10 COUT = 2.2µF CERAMIC 10 COUT = 2.2µF CERAMIC COUT = 2.2µF CERAMIC RIPPLE = 50mVP-P ILOAD = 1.1A 0 0 0 10 100 1k 10k 100k 1M 10 100 1k 10k 100k 1M 10 100 1k 10k 100k 1M FREQUENCY (Hz) FREQUENCY (Hz) FREQUENCY (Hz) 3080 G22 3080 G23 3080 G24
Ripple Rejection (120Hz) Noise Spectral Density
80 10k 1k 79 SPECTRAL DENSITY ( 78 ) REFERENCE CURRENT NOISE Hz 1k 100 77 76 75 100 10 74 pA/ √ 73 SINGLE SUPPLY OPERATION RIPPLE REJECTION (dB) V ERROR AMPLIFIER NOISE 10 1.0 Hz 72 IN = VOUT(NOMINAL) + 2V ) RIPPLE = 500mV SPECTRAL DENSITY (nV/√ P-P, f = 120Hz 71 ILOAD = 1.1A CSET = 0.1µF, COUT = 2.2µF 70 1 0.1 –50 –25 0 25 50 75 100 125 150 10 100 1k 10k 100k TEMPERATURE (°C) FREQUENCY (Hz) 3080 G25 3080 G26 Rev. D For more information www.analog.com 7 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Output Voltage Stability and Output Capacitance Paralleling Devices Thermal Performance Quieting the Noise Overload Recovery Load Regulation Thermal Considerations T Package, 5-Lead TO-220 Calculating Junction Temperature Reducing Power Dissipation Typical Applications Package Description Revision History Typical Application Related Parts
