Datasheet LT1965 (Analog Devices) - 10
| Fabricante | Analog Devices |
| Descripción | 1.1A, Low Noise, Low Dropout Linear Regulator |
| Páginas / Página | 22 / 10 — typical perForMance characteristics. Ripple Rejection vs Temperature. … |
| Formato / tamaño de archivo | PDF / 998 Kb |
| Idioma del documento | Inglés |
typical perForMance characteristics. Ripple Rejection vs Temperature. LT1965 Minimum Input Voltage. Load Regulation
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Versión de texto del documento
LT1965 Series
typical perForMance characteristics Ripple Rejection vs Temperature LT1965 Minimum Input Voltage Load Regulation
100 2.5 0 LT1965 LT1965-1.5 90 –5 80 2.0 I –10 L = 1A 70 I LT1965-1.8 L = 1.1A –15 60 1.5 –20 LT1965-2.5 LT1965-3.3 50 IL = 500mA I –25 L = 100mA 40 1.0 –30 30 –35 RIPPLE REJECTION (dB) LOAD REGULATION (mV) V 20 IN = VOUT(NOMINAL) + 1V I –40 L = 0.75A MINIMUM INPUT VOLTAGE (V) 0.5 (LT1965-1.5/-1.8/-2.5/-3.3) 10 VIN = VOUT(NOMINAL) + 1V + 0.5P-P –45 VIN = 2.3V (LT1965) RIPPLE AT f = 120Hz ∆IL = 1mA TO 1.1A 0 0 –50 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 1965 G35 1965 G36 1965 G37
RMS Output Noise vs Load LT1965-1.8 10Hz to 100kHz Output Noise Spectral Density Current (10Hz to 100kHz) Output Noise
1.00 C 80 OUT = 10µF COUT = 10µF IL = 1.1A ) 70 IL = 1.1A RMS LT1965-2.5 60 LT1965-3.3 LT1965-3.3 50 VOUT LT1965-2.5 100µV/DIV 0.10 40 LT1965-1.8 LT1965 30 LT1965-1.8 LT1965-1.5 20 LT1965 1965 G40 OUTPUT NOISE VOLTAGE (µV 10 LT1965-1.5 400µs/DIV OUTPUT NOISE SPECTRAL DENSITY (µV Hz) 0.01 0 10 100 1k 10k 100k 0.0001 0.001 0.01 0.1 1 10 FREQUENCY (Hz) LOAD CURRENT (A) 1965 G38 1965 G39
LT1965-2.5 SHDN Transient LT1965-3.3 Transient Response Response
100 4.0 VOUT = 3.3V 50 3.5 0 SHDN 3.0 –50 2.5 OUTPUT VOLTAGE DEVIATION (mV) –100 2.0 1.5 VIN = 4.3V C 1.5 IN = 10µF CERAMIC 1.0 OUTPUT COUT = 10µF CERAMIC AND OUTPUT VOLTAGE (V) 1.0 0.5 SHDN 0.5 LOAD CURRENT (A) 0 0 0 10 20 30 40 50 60 70 80 0 10 20 30 40 50 60 70 80 90 100 TIME (µs) TIME (µs) 1965 G41 1965 G42 VIN = 3.3V COUT = 10µF CERAMIC RL = 2.5k, IL = 1mA FOR VOUT = 2.5V 1965fb 10 For more information www.linear.com/LT1965 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Applications Information Typical Applications Package Description Revision History Related Parts
typical perForMance characteristics Ripple Rejection vs Temperature LT1965 Minimum Input Voltage Load Regulation
100 2.5 0 LT1965 LT1965-1.5 90 –5 80 2.0 I –10 L = 1A 70 I LT1965-1.8 L = 1.1A –15 60 1.5 –20 LT1965-2.5 LT1965-3.3 50 IL = 500mA I –25 L = 100mA 40 1.0 –30 30 –35 RIPPLE REJECTION (dB) LOAD REGULATION (mV) V 20 IN = VOUT(NOMINAL) + 1V I –40 L = 0.75A MINIMUM INPUT VOLTAGE (V) 0.5 (LT1965-1.5/-1.8/-2.5/-3.3) 10 VIN = VOUT(NOMINAL) + 1V + 0.5P-P –45 VIN = 2.3V (LT1965) RIPPLE AT f = 120Hz ∆IL = 1mA TO 1.1A 0 0 –50 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 1965 G35 1965 G36 1965 G37
RMS Output Noise vs Load LT1965-1.8 10Hz to 100kHz Output Noise Spectral Density Current (10Hz to 100kHz) Output Noise
1.00 C 80 OUT = 10µF COUT = 10µF IL = 1.1A ) 70 IL = 1.1A RMS LT1965-2.5 60 LT1965-3.3 LT1965-3.3 50 VOUT LT1965-2.5 100µV/DIV 0.10 40 LT1965-1.8 LT1965 30 LT1965-1.8 LT1965-1.5 20 LT1965 1965 G40 OUTPUT NOISE VOLTAGE (µV 10 LT1965-1.5 400µs/DIV OUTPUT NOISE SPECTRAL DENSITY (µV Hz) 0.01 0 10 100 1k 10k 100k 0.0001 0.001 0.01 0.1 1 10 FREQUENCY (Hz) LOAD CURRENT (A) 1965 G38 1965 G39
LT1965-2.5 SHDN Transient LT1965-3.3 Transient Response Response
100 4.0 VOUT = 3.3V 50 3.5 0 SHDN 3.0 –50 2.5 OUTPUT VOLTAGE DEVIATION (mV) –100 2.0 1.5 VIN = 4.3V C 1.5 IN = 10µF CERAMIC 1.0 OUTPUT COUT = 10µF CERAMIC AND OUTPUT VOLTAGE (V) 1.0 0.5 SHDN 0.5 LOAD CURRENT (A) 0 0 0 10 20 30 40 50 60 70 80 0 10 20 30 40 50 60 70 80 90 100 TIME (µs) TIME (µs) 1965 G41 1965 G42 VIN = 3.3V COUT = 10µF CERAMIC RL = 2.5k, IL = 1mA FOR VOUT = 2.5V 1965fb 10 For more information www.linear.com/LT1965 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Applications Information Typical Applications Package Description Revision History Related Parts