Datasheet LTC3425 (Analog Devices) - 2
| Hersteller | Analog Devices |
| Beschreibung | 5A, 8MHz, 4-Phase Synchronous Step-Up DC/DC Converter |
| Seiten / Seite | 24 / 2 — ABSOLUTE AXI U. RATI GS. PACKAGE/ORDER I FOR ATIO. (Note 1). ELECTRICAL … |
| Dateiformat / Größe | PDF / 284 Kb |
| Dokumentensprache | Englisch |
ABSOLUTE AXI U. RATI GS. PACKAGE/ORDER I FOR ATIO. (Note 1). ELECTRICAL CHARACTERISTICS The
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LTC3425
W W W U U W U ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO (Note 1)
VIN Voltage ... – 0.3V to 6V TOP VIEW SWA-D Voltages .. – 0.3V to 6V IN T V SS SHDN SYNCIN V R I LIM CCM SYNCOUT OUTA-D, VOUTS Voltages .. – 0.3V to 6V 32 31 30 29 28 27 26 25 BURST, SHDN, SS, REFEN, SYNCOUT, PGOOD, GNDA 1 24 GNDD REFOUT, CCM, SYNCIN Voltages ... – 0.3V to 6V GNDA 2 23 GNDD Operating Ambient Temperature Range SWA 3 22 SWD (Note 5) .. – 40°C to 85°C VOUTA 4 21 VOUTD 33 Storage Temperature Range ... – 65°C to 125°C V 5 20 OUTB VOUTC Lead Temperature (Soldering, 10 sec).. 300°C SWB 6 19 SWC GNDB 7 18 GNDC GNDB 8 17 GNDC 9 10 11 12 13 14 15 16 FB OUTS REFEN V SGND COMP BURST REFOUT PGOOD UH PACKAGE 32-LEAD (5mm × 5mm) PLASTIC QFN TJMAX = 125°C, θJA = 40°C/W 1 LAYER BOARD, θJA = 35°C/W 4 LAYER BOARD, θJC = 1.1°C/W EXPOSED PAD IS GND (PIN 33) MUST BE SOLDERED TO PCB ORDER PART UH PART NUMBER MARKING LTC3425EUH 3425 Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The
●
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. VIN = 1.2V, VOUT = 3.3V, RT = 15k, unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX UNITS
Minimum Start-Up Voltage VOUT = 0V, ILOAD < 1mA 0.88 1 V Minimum Operating Voltage (Note 3) ● 0.5 V Output Voltage Adjust Range ● 2.4 5.25 V Feedback Regulation Voltage ● 1.196 1.220 1.244 V Feedback Input Current 1 50 nA VOUT Quiescent Current—Burst Mode Operation BURST = 0V, REFEN = 0V, FB = 1.3V (Note 2) 12 25 µA BURST = 0V, REFEN = 2V, FB = 1.3V (Note 2) 18 35 µA VIN Quiescent Current—Shutdown SHDN = 0V, VOUT = 0V, Not Including Switch Leakage 0.1 1 µA VOUT Quiescent Current—Active VC = 0V, Nonswitching (Note 2) 1.8 3 mA NMOS Switch Leakage VSW = 5V 0.1 5 µA PMOS Switch Leakage VSW = 5V, VOUT = 0V 0.1 10 µA NMOS Switch On Resistance (Note 4) 0.04 Ω PMOS Switch On Resistance (Note 4) 0.05 Ω NMOS Current Limit ILIM Resistor = 75k (Note 4) ● 5.0 7.0 A ILIM Resistor = 200k (Note 4) ● 1.8 2.7 A 3425f 2
W W W U U W U ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO (Note 1)
VIN Voltage ... – 0.3V to 6V TOP VIEW SWA-D Voltages .. – 0.3V to 6V IN T V SS SHDN SYNCIN V R I LIM CCM SYNCOUT OUTA-D, VOUTS Voltages .. – 0.3V to 6V 32 31 30 29 28 27 26 25 BURST, SHDN, SS, REFEN, SYNCOUT, PGOOD, GNDA 1 24 GNDD REFOUT, CCM, SYNCIN Voltages ... – 0.3V to 6V GNDA 2 23 GNDD Operating Ambient Temperature Range SWA 3 22 SWD (Note 5) .. – 40°C to 85°C VOUTA 4 21 VOUTD 33 Storage Temperature Range ... – 65°C to 125°C V 5 20 OUTB VOUTC Lead Temperature (Soldering, 10 sec).. 300°C SWB 6 19 SWC GNDB 7 18 GNDC GNDB 8 17 GNDC 9 10 11 12 13 14 15 16 FB OUTS REFEN V SGND COMP BURST REFOUT PGOOD UH PACKAGE 32-LEAD (5mm × 5mm) PLASTIC QFN TJMAX = 125°C, θJA = 40°C/W 1 LAYER BOARD, θJA = 35°C/W 4 LAYER BOARD, θJC = 1.1°C/W EXPOSED PAD IS GND (PIN 33) MUST BE SOLDERED TO PCB ORDER PART UH PART NUMBER MARKING LTC3425EUH 3425 Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The
●
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. VIN = 1.2V, VOUT = 3.3V, RT = 15k, unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX UNITS
Minimum Start-Up Voltage VOUT = 0V, ILOAD < 1mA 0.88 1 V Minimum Operating Voltage (Note 3) ● 0.5 V Output Voltage Adjust Range ● 2.4 5.25 V Feedback Regulation Voltage ● 1.196 1.220 1.244 V Feedback Input Current 1 50 nA VOUT Quiescent Current—Burst Mode Operation BURST = 0V, REFEN = 0V, FB = 1.3V (Note 2) 12 25 µA BURST = 0V, REFEN = 2V, FB = 1.3V (Note 2) 18 35 µA VIN Quiescent Current—Shutdown SHDN = 0V, VOUT = 0V, Not Including Switch Leakage 0.1 1 µA VOUT Quiescent Current—Active VC = 0V, Nonswitching (Note 2) 1.8 3 mA NMOS Switch Leakage VSW = 5V 0.1 5 µA PMOS Switch Leakage VSW = 5V, VOUT = 0V 0.1 10 µA NMOS Switch On Resistance (Note 4) 0.04 Ω PMOS Switch On Resistance (Note 4) 0.05 Ω NMOS Current Limit ILIM Resistor = 75k (Note 4) ● 5.0 7.0 A ILIM Resistor = 200k (Note 4) ● 1.8 2.7 A 3425f 2