Datasheet LT3437 (Analog Devices) - 2
| Hersteller | Analog Devices |
| Beschreibung | High Voltage 500mA, 200kHz Step-Down Switching Regulator with 100µA Quiescent Current |
| Seiten / Seite | 28 / 2 — ABSOLUTE AXI U. RATI GS. (Note 1). PACKAGE/ORDER I FOR ATIO. Order … |
| Dateiformat / Größe | PDF / 573 Kb |
| Dokumentensprache | Englisch |
ABSOLUTE AXI U. RATI GS. (Note 1). PACKAGE/ORDER I FOR ATIO. Order Options. ELECTRICAL CHARACTERISTICS The
Modelllinie für dieses Datenblatt
Textversion des Dokuments
LT3437
W W W U ABSOLUTE AXI U RATI GS (Note 1)
VIN, SHDN, BIAS, SW Operating ... 60V Operating Junction Temperature Range VIN, SHDN 100ms Transient, <15% Duty Cycle ... 80V LT3437EDD (Note 2) ... – 40°C to 125°C BOOST Pin Above SW .. 35V LT3437IDD (Note 2) .. – 40°C to 125°C BOOST Pin Voltage Operating ... 75V LT3437EFE (Note 2) .. – 40°C to 125°C BOOST Pin 100ms Transient, <15% Duty Cycle .. 85V LT3437IFE (Note 2) ... – 40°C to 125°C SYNC, CSS, FB .. 6V LT3437HFE (Note 2) .. –40°C to 140°C Storage Temperature Range ... – 65°C to 125°C DD Package ... –65°C to 125°C FE Package .. –65°C to 150°C
U W U PACKAGE/ORDER I FOR ATIO
TOP VIEW NC 1 16 NC TOP VIEW SW 2 15 SHDN NC 3 14 SYNC SW 1 10 SHDN V 4 13 V 2 9 SYNC IN NC IN 17 BOOST 3 11 8 FB NC 5 12 FB GND 4 7 VC BOOST 6 11 VC C 5 6 BIAS SS NC 7 10 BIAS GND 8 9 CSS DD PACKAGE 10-LEAD (3mm × 3mm) PLASTIC DFN FE PACKAGE θJA = 45°C/W, θJC(PAD) = 10°C/W 16-LEAD PLASTIC TSSOP EXPOSED PAD IS GND (PIN 11) θJA = 45°C/W, θJC(PAD) = 10°C/W MUST BE SOLDERED TO GND (PIN 4) EXPOSED PAD IS GND (PIN 17) MUST BE SOLDERED TO GND (PIN 8) ORDER PART NUMBER DD PART MARKING ORDER PART NUMBER FE PART MARKING LT3437EDD LBDJ LT3437EFE 3437EFE LT3437IDD LBDK LT3437IFE 3437IFE LT3437HFE 3437HFE
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 the specifications which apply over the –40
°
C to 125
°
C temperature range, otherwise specifications are at TJ = 25
°
C. VIN = 12V, SHDN = 12V, BIAS = 5V, FB = 1.25V, CSS/SYNC = 0V unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VSHDN SHDN Threshold ● 1.15 1.3 1.45 V ISHDN SHDN Input Current SHDN = 12V ● 5 30 µA Minimum Input Voltage (Note 3) ● 2.5 3 V IVINS Supply Shutdown Current SHDN = 0V, BOOST = 0V, FB/PGFB = 0V, BIAS = 0V 0.1 2 µA Supply Sleep Current (Note 4) BIAS = 0V, FB = 1.35V ● 150 300 µA FB = 1.35V ● 45 75 µA 3437fc 2
W W W U ABSOLUTE AXI U RATI GS (Note 1)
VIN, SHDN, BIAS, SW Operating ... 60V Operating Junction Temperature Range VIN, SHDN 100ms Transient, <15% Duty Cycle ... 80V LT3437EDD (Note 2) ... – 40°C to 125°C BOOST Pin Above SW .. 35V LT3437IDD (Note 2) .. – 40°C to 125°C BOOST Pin Voltage Operating ... 75V LT3437EFE (Note 2) .. – 40°C to 125°C BOOST Pin 100ms Transient, <15% Duty Cycle .. 85V LT3437IFE (Note 2) ... – 40°C to 125°C SYNC, CSS, FB .. 6V LT3437HFE (Note 2) .. –40°C to 140°C Storage Temperature Range ... – 65°C to 125°C DD Package ... –65°C to 125°C FE Package .. –65°C to 150°C
U W U PACKAGE/ORDER I FOR ATIO
TOP VIEW NC 1 16 NC TOP VIEW SW 2 15 SHDN NC 3 14 SYNC SW 1 10 SHDN V 4 13 V 2 9 SYNC IN NC IN 17 BOOST 3 11 8 FB NC 5 12 FB GND 4 7 VC BOOST 6 11 VC C 5 6 BIAS SS NC 7 10 BIAS GND 8 9 CSS DD PACKAGE 10-LEAD (3mm × 3mm) PLASTIC DFN FE PACKAGE θJA = 45°C/W, θJC(PAD) = 10°C/W 16-LEAD PLASTIC TSSOP EXPOSED PAD IS GND (PIN 11) θJA = 45°C/W, θJC(PAD) = 10°C/W MUST BE SOLDERED TO GND (PIN 4) EXPOSED PAD IS GND (PIN 17) MUST BE SOLDERED TO GND (PIN 8) ORDER PART NUMBER DD PART MARKING ORDER PART NUMBER FE PART MARKING LT3437EDD LBDJ LT3437EFE 3437EFE LT3437IDD LBDK LT3437IFE 3437IFE LT3437HFE 3437HFE
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 the specifications which apply over the –40
°
C to 125
°
C temperature range, otherwise specifications are at TJ = 25
°
C. VIN = 12V, SHDN = 12V, BIAS = 5V, FB = 1.25V, CSS/SYNC = 0V unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VSHDN SHDN Threshold ● 1.15 1.3 1.45 V ISHDN SHDN Input Current SHDN = 12V ● 5 30 µA Minimum Input Voltage (Note 3) ● 2.5 3 V IVINS Supply Shutdown Current SHDN = 0V, BOOST = 0V, FB/PGFB = 0V, BIAS = 0V 0.1 2 µA Supply Sleep Current (Note 4) BIAS = 0V, FB = 1.35V ● 150 300 µA FB = 1.35V ● 45 75 µA 3437fc 2