Datasheet LT3045 (Analog Devices) - 3

LT3045
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. PARAMETER CONDITIONS MIN TYP MAX UNITS
Input Voltage Range l 2 20 V Minimum IN Pin Voltage ILOAD = 500mA, VIN UVLO Rising l 1.78 2 V (Note 2) VIN UVLO Hysteresis 75 mV Output Voltage Range VIN > VOUT l 0 15 V SET Pin Current (ISET) VIN = 2V, ILOAD = 1mA, VOUT = 1.3V 99 100 101 µA 2V < VIN < 20V, 0V < VOUT < 15V, 1mA < ILOAD < 500mA (Note 3) l 98 100 102 µA Fast Start-Up Set Pin VPGFB = 289mV, VIN = 2.8V, VSET = 1.3V 2 mA Current Output Offset Voltage VIN = 2V, ILOAD = 1mA, VOUT = 1.3V –1 1 mV VOS (VOUT – VSET) 2V < VIN < 20V, 0V < VOUT < 15V, 1mA < ILOAD < 500mA (Note 3) l –2 2 mV (Note 4) Line Regulation: ∆ISET VIN = 2V to 20V, ILOAD = 1mA, VOUT = 1.3V l 0.5 ±2 nA/V Line Regulation: ∆VOS VIN = 2V to 20V, ILOAD = 1mA, VOUT = 1.3V (Note 4) l 0.5 ±3 µV/V Load Regulation: ∆ISET ILOAD = 1mA to 500mA, VIN = 2V, VOUT = 1.3V 3 nA Load Regulation: ∆VOS ILOAD = 1mA to 500mA, VIN = 2V, VOUT = 1.3V (Note 4) l 0.1 0.5 mV Change in ISET with VSET VSET = 1.3V to 15V, VIN = 20V, ILOAD = 1mA l 30 400 nA Change in VOS with VSET VSET = 1.3V to 15V, VIN = 20V, ILOAD = 1mA (Note 4) l 0.03 0.6 mV Change in ISET with VSET VSET = 0V to 1.3V, VIN = 20V, ILOAD = 1mA l 150 600 nA Change in VOS with VSET VSET = 0V to 1.3V, VIN = 20V, ILOAD = 1mA (Note 4) l 0.3 2 mV Dropout Voltage ILOAD = 1mA, 50mA 220 275 mV l 330 mV ILOAD = 300mA (Note 5) 220 280 mV l 350 mV ILOAD = 500mA (Note 5) 260 350 mV l 450 mV GND Pin Current ILOAD = 10µA 2.2 mA VIN = VOUT(NOMINAL) ILOAD = 1mA l 2.4 4 mA (Note 6) ILOAD = 50mA l 3.5 5.5 mA ILOAD = 100mA l 4.3 7 mA ILOAD = 500mA l 15 25 mA Output Noise Spectral ILOAD = 500mA, Frequency = 10Hz, COUT = 10µF, CSET = 0.47µF, VOUT = 3.3V 500 nV/√Hz Density (Notes 4, 8) ILOAD = 500mA, Frequency = 10Hz, COUT = 10µF, CSET = 4.7µF, 1.3V ≤ VOUT ≤ 15V 70 nV/√Hz ILOAD = 500mA, Frequency = 10kHz, COUT = 10µF, CSET = 0.47µF, 1.3V ≤ VOUT ≤ 15V 2 nV/√Hz ILOAD = 500mA, Frequency = 10kHz, COUT = 10µF, CSET = 0.47µF, 0V ≤ VOUT < 1.3V 5 nV/√Hz Output RMS Noise ILOAD = 500mA, BW = 10Hz to 100kHz, COUT = 10µF, CSET = 0.47µF, VOUT = 3.3V 2.5 µVRMS (Notes 4, 8) ILOAD = 500mA, BW = 10Hz to 100kHz, COUT = 10µF, CSET = 4.7µF, 1.3V ≤ VOUT ≤ 15V 0.8 µVRMS ILOAD = 500mA, BW = 10Hz to 100kHz, COUT = 10µF, CSET = 4.7µF, 0V ≤ VOUT < 1.3V 1.8 µVRMS Reference Current RMS BW = 10Hz to 100kHz 6 nARMS Output Noise (Notes 4, 8) Ripple Rejection VRIPPLE = 500mVP-P, fRIPPLE = 120Hz, ILOAD = 500mA, COUT = 10µF, CSET = 4.7µF 117 dB 1.3V ≤ VOUT ≤ 15V VRIPPLE = 150mVP-P, fRIPPLE = 10kHz, ILOAD = 500mA, COUT = 10µF, CSET = 0.47µF 90 dB VIN – VOUT = 2V (Avg) VRIPPLE = 150mVP-P, fRIPPLE = 100kHz, ILOAD = 500mA, COUT = 10µF, CSET = 0.47µF 77 dB (Notes 4, 8) VRIPPLE = 150mVP-P, fRIPPLE = 1MHz, ILOAD = 500mA, COUT = 10µF, CSET = 0.47µF 76 dB VRIPPLE = 80mVP-P, fRIPPLE = 10MHz, ILOAD = 500mA, COUT = 10µF, CSET = 0.47µF 53 dB Ripple Rejection VRIPPLE = 500mVP-P, fRIPPLE = 120Hz, ILOAD = 500mA, COUT = 10µF, CSET = 0.47µF 104 dB 0V ≤ VOUT < 1.3V VRIPPLE = 50mVP-P, fRIPPLE = 10kHz, ILOAD = 500mA, COUT = 10µF, CSET = 0.47µF 85 dB VIN – VOUT = 2V (Avg) VRIPPLE = 50mVP-P, fRIPPLE = 100kHz, ILOAD = 500mA, COUT = 10µF, CSET = 0.47µF 72 dB (Notes 4, 8) VRIPPLE = 50mVP-P, fRIPPLE = 1MHz, ILOAD = 500mA, COUT = 10µF, CSET = 0.47µF 64 dB VRIPPLE = 50mVP-P, fRIPPLE = 10MHz, ILOAD = 500mA, COUT = 10µF, CSET = 0.47µF 54 dB EN/UV Pin Threshold EN/UV Trip Point Rising (Turn-On), VIN = 2V l 1.18 1.24 1.32 V EN/UV Pin Hysteresis EN/UV Trip Point Hysteresis, VIN = 2V 130 mV Rev. B For more information www.analog.com 3 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 Typical Applications Package Description Revision History Typical Application Related Parts