Datasheet LTC3422 (Analog Devices) - 2
| 制造商 | Analog Devices |
| 描述 | 1.5A, 3MHz Synchronous Step-Up DC/DC Converter with Output Disconnect |
| 页数 / 页 | 16 / 2 — ABSOLUTE AXI U. RATI GS. PACKAGE/ORDER I FOR ATIO. (Note 1). Order … |
| 文件格式/大小 | PDF / 271 Kb |
| 文件语言 | 英语 |
ABSOLUTE AXI U. RATI GS. PACKAGE/ORDER I FOR ATIO. (Note 1). Order Options. ELECTRICAL CHARACTERISTICS The
该数据表的模型线
文件文字版本
LTC3422
W W W U U W U ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO (Note 1)
V TOP VIEW IN, VOUT, SYNC Voltages ... – 0.3V to 6V FB, SS, BURST, SHDN Voltages .. – 0.3V to 6V SW 1 10 VOUT SW Voltage V 2 9 SYNC IN DC .. – 0.3V to 6V BURST 3 11 8 RT Pulsed < 100ns .. – 0.3V to 7V SS 4 7 VC SHDN 5 6 FB Operating Temperature Range (Notes 2, 5) ... –40°C to 85°C DD PACKAGE 10-LEAD (3mm × 3mm) PLASTIC DFN Storage Temperature Range ... – 65°C to 125°C TJMAX = 125°C, θJA = 43°C/W EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB ORDER PART NUMBER DD PART MARKING LTC3422EDD LBRN
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 full operating temperature range, otherwise specifications are at TA = 25
°
C. VIN = 1.2V, VOUT = 3.3V, RT = 28k, unless otherwise noted. (Note 2) PARAMETER CONDITIONS MIN TYP MAX UNITS
Minimum VIN Start-Up Voltage ILOAD < 1mA 0.88 1 V Minimum VIN Operating Voltage (Note 3) ● 0.5 V Output Voltage Adjust Range 2.25 5.25 V ● 2.40 5.25 V Feedback Voltage ● 1.192 1.216 1.240 V Feedback Input Current VFB = 1.216V 1 50 nA Quiescent Current—Burst Mode Operation VC = 0V (Note 4) 25 42 µA Quiescent Current—Shutdown SHDN = 0V, VOUT = 0V 0.1 1 µA Quiescent Current—Active VC = 0V (Note 4) 0.75 1.1 mA NMOS Switch Leakage 0.1 5 µA PMOS Switch Leakage VOUT = 2V 0.1 10 µA NMOS Switch On Resistance VOUT = 3.3V 0.20 Ω PMOS Switch On Resistance VOUT = 3.3V 0.24 Ω NMOS Current Limit—Steady State ● 1.5 A NMOS Current Limit—Pulsed Duty Cycle Not to Exceed 5% 2 2.5 A NMOS Current Limit—Short Circuit VOUT = 500mV, VIN = 2.5V 0.75 1.5 A NMOS Burst Current Limit 600 mA Maximum Duty Cycle ● 84 91 % Minimum Duty Cycle ● 0 % Frequency ● 0.85 1 1.15 MHz SYNC Input High ● 2.2 V SYNC Input Low ● 0.8 V SYNC Input Current 0.01 1 µA 3422fa 2
W W W U U W U ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO (Note 1)
V TOP VIEW IN, VOUT, SYNC Voltages ... – 0.3V to 6V FB, SS, BURST, SHDN Voltages .. – 0.3V to 6V SW 1 10 VOUT SW Voltage V 2 9 SYNC IN DC .. – 0.3V to 6V BURST 3 11 8 RT Pulsed < 100ns .. – 0.3V to 7V SS 4 7 VC SHDN 5 6 FB Operating Temperature Range (Notes 2, 5) ... –40°C to 85°C DD PACKAGE 10-LEAD (3mm × 3mm) PLASTIC DFN Storage Temperature Range ... – 65°C to 125°C TJMAX = 125°C, θJA = 43°C/W EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB ORDER PART NUMBER DD PART MARKING LTC3422EDD LBRN
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 full operating temperature range, otherwise specifications are at TA = 25
°
C. VIN = 1.2V, VOUT = 3.3V, RT = 28k, unless otherwise noted. (Note 2) PARAMETER CONDITIONS MIN TYP MAX UNITS
Minimum VIN Start-Up Voltage ILOAD < 1mA 0.88 1 V Minimum VIN Operating Voltage (Note 3) ● 0.5 V Output Voltage Adjust Range 2.25 5.25 V ● 2.40 5.25 V Feedback Voltage ● 1.192 1.216 1.240 V Feedback Input Current VFB = 1.216V 1 50 nA Quiescent Current—Burst Mode Operation VC = 0V (Note 4) 25 42 µA Quiescent Current—Shutdown SHDN = 0V, VOUT = 0V 0.1 1 µA Quiescent Current—Active VC = 0V (Note 4) 0.75 1.1 mA NMOS Switch Leakage 0.1 5 µA PMOS Switch Leakage VOUT = 2V 0.1 10 µA NMOS Switch On Resistance VOUT = 3.3V 0.20 Ω PMOS Switch On Resistance VOUT = 3.3V 0.24 Ω NMOS Current Limit—Steady State ● 1.5 A NMOS Current Limit—Pulsed Duty Cycle Not to Exceed 5% 2 2.5 A NMOS Current Limit—Short Circuit VOUT = 500mV, VIN = 2.5V 0.75 1.5 A NMOS Burst Current Limit 600 mA Maximum Duty Cycle ● 84 91 % Minimum Duty Cycle ● 0 % Frequency ● 0.85 1 1.15 MHz SYNC Input High ● 2.2 V SYNC Input Low ● 0.8 V SYNC Input Current 0.01 1 µA 3422fa 2