Datasheet LT3503 (Analog Devices) - 2
| Fabricante | Analog Devices |
| Descripción | 1A, 2.2MHz Step-Down Switching Regulator in 2mm x 3mm DFN |
| Páginas / Página | 20 / 2 — ABSOLUTE AXI U RATI GS. PACKAGE/ORDER I FOR ATIO. (Note 1). Order … |
| Formato / tamaño de archivo | PDF / 438 Kb |
| Idioma del documento | Inglés |
ABSOLUTE AXI U RATI GS. PACKAGE/ORDER I FOR ATIO. (Note 1). Order Options. ELECTRICAL CHARACTERISTICS. The
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LT3503
W W W U U W U ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO (Note 1)
Input Voltage (VIN) .. 20V TOP VIEW BOOST Pin Voltage .. 40V FB 1 6 SHDN BOOST Pin Above SW Pin ... 20V SHDN Pin .. 20V GND 2 7 5 VIN FB Voltage ... 6V BOOST 3 4 SW Operating Temperature Range (Note 2) ... –40°C to 85°C DCB PACKAGE Maximum Junction Temperature .. 125°C 6-LEAD (2mm ´ 3mm) PLASTIC DFN Storage Temperature Range ... – 65°C to 150°C TJMAX = 125°C, θJA = 64°C/ W EXPOSED PAD (PIN 7) IS GND, MUST BE SOLDERED TO PCB ORDER PART NUMBER DCB PART MARKING LT3503EDCB LCGW
Order Options
Tape and Reel: Add #TR Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF Lead Free Part Marking: http://www.linear.com/leadfree/ Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The
●
denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. VIN = 12V, VBOOST = 17V, unless otherwise noted. (Note 2) PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN Operating Range 3.6 20 V Undervoltage Lockout 3.0 3.4 3.6 V Feedback Voltage ● 765 780 795 mV FB Pin Bias Current VFB = Measured VREF (Note 4) ● 50 150 nA Quiescent Current Not Switching 1.9 2.6 mA Quiescent Current in Shutdown VSHDN = 0V 0.01 2 µA Reference Line Regulation VIN = 5V to 20V 0.007 %/V Switching Frequency VFB = 0.7V 2.0 2.2 2.4 MHz VFB = 0V 36 kHz Maximum Duty Cycle ● 76 81 % 3503f 2
W W W U U W U ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO (Note 1)
Input Voltage (VIN) .. 20V TOP VIEW BOOST Pin Voltage .. 40V FB 1 6 SHDN BOOST Pin Above SW Pin ... 20V SHDN Pin .. 20V GND 2 7 5 VIN FB Voltage ... 6V BOOST 3 4 SW Operating Temperature Range (Note 2) ... –40°C to 85°C DCB PACKAGE Maximum Junction Temperature .. 125°C 6-LEAD (2mm ´ 3mm) PLASTIC DFN Storage Temperature Range ... – 65°C to 150°C TJMAX = 125°C, θJA = 64°C/ W EXPOSED PAD (PIN 7) IS GND, MUST BE SOLDERED TO PCB ORDER PART NUMBER DCB PART MARKING LT3503EDCB LCGW
Order Options
Tape and Reel: Add #TR Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF Lead Free Part Marking: http://www.linear.com/leadfree/ Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The
●
denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. VIN = 12V, VBOOST = 17V, unless otherwise noted. (Note 2) PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN Operating Range 3.6 20 V Undervoltage Lockout 3.0 3.4 3.6 V Feedback Voltage ● 765 780 795 mV FB Pin Bias Current VFB = Measured VREF (Note 4) ● 50 150 nA Quiescent Current Not Switching 1.9 2.6 mA Quiescent Current in Shutdown VSHDN = 0V 0.01 2 µA Reference Line Regulation VIN = 5V to 20V 0.007 %/V Switching Frequency VFB = 0.7V 2.0 2.2 2.4 MHz VFB = 0V 36 kHz Maximum Duty Cycle ● 76 81 % 3503f 2