Datasheet LTC3406-1.2 (Analog Devices) - 2
| 制造商 | Analog Devices |
| 描述 | 1.5MHz, 600mA Synchronous Step-Down Regulator in ThinSOT |
| 页数 / 页 | 12 / 2 — ABSOLUTE AXI U RATI GS. PACKAGE/ORDER I FOR ATIO. (Note 1). Order … |
| 文件格式/大小 | PDF / 238 Kb |
| 文件语言 | 英语 |
ABSOLUTE AXI U RATI GS. PACKAGE/ORDER I FOR ATIO. (Note 1). Order Options. ELECTRICAL CHARACTERISTICS The
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LTC3406-1.2
W W W U U W U ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO (Note 1)
Input Supply Voltage .. – 0.3V to 6V TOP VIEW RUN, VOUT Voltages... – 0.3V to VIN RUN 1 5 VOUT SW Voltage (DC) ... – 0.3V to (VIN + 0.3V) GND 2 P-Channel Switch Source Current (DC) ... 800mA SW 3 4 VIN N-Channel Switch Sink Current (DC) ... 800mA S5 PACKAGE Peak SW Sink and Source Current (V 5-LEAD PLASTIC TSOT-23 IN = 3V) .. 1.3A Operating Temperature Range (Note 2) .. – 40°C to 85°C TJMAX = 125°C, θJA = 250°C/ W, θJC = 90°C/ W Junction Temperature (Notes 3, 5) .. 125°C ORDER PART NUMBER S5 PART MARKING Storage Temperature Range .. – 65°C to 150°C Lead Temperature (Soldering, 10 sec)... 300°C LTC3406ES5-1.2 LTBMQ
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 TA = 25
°
C. VIN = 3.6V unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VOUT Regulated Output Voltage IOUT = 100mA ● 1.164 1.2 1.236 V ∆VOVL Output Overvoltage Lockout ∆VOVL = VOVL – VOUT 2.5 6.25 10 % ∆VOUT Output Voltage Line Regulation VIN = 2.5V to 5.5V ● 0.04 0.4 %/V IPK Peak Inductor Current VIN = 3V, VOUT = 1.08V, Duty Cycle < 35% 0.75 1 1.25 A VLOADREG Output Voltage Load Regulation 0.5 % VIN Input Voltage Range ● 2.5 5.5 V IS Input DC Bias Current (Note 4) Active Mode VOUT = 1.08V, ILOAD = 0A 300 400 µA Sleep Mode VOUT = 1.236V, ILOAD = 0A 20 35 µA Shutdown VRUN = 0V, VIN = 5.5V 0.1 1 µA fOSC Oscillator Frequency VOUT = 1.2V ● 1.2 1.5 1.8 MHz VOUT = 0V 210 kHz RPFET RDS(ON) of P-Channel FET ISW = 100mA 0.4 0.5 Ω RNFET RDS(ON) of N-Channel FET ISW = –100mA 0.35 0.45 Ω ILSW SW Leakage VRUN = 0V, VSW = 0V or 5V, VIN = 5V ±0.01 ±1 µA VRUN RUN Threshold ● 0.3 1 1.5 V IRUN RUN Leakage Current ● ±0.01 ±1 µA
Note 1:
Absolute Maximum Ratings are those values beyond which the life
Note 4:
Dynamic supply current is higher due to the gate charge being of a device may be impaired. delivered at the switching frequency.
Note 2:
The LTC3406E-1.2 is guaranteed to meet performance
Note 5:
This IC includes overtemperature protection that is intended to specifications from 0°C to 70°C. Specifications over the –40°C to 85°C protect the device during momentary overload conditions. Junction operating temperature range are assured by design, characterization and temperature will exceed 125°C when overtemperature protection is active. correlation with statistical process controls. Continuous operation above the specified maximum operating junction
Note 3:
T temperature may impair device reliability. J is calculated from the ambient temperature TA and power dissipation PD according to the following formula: LTC3406-1.2: TJ = TA + (PD)(250°C/W) 340612fa 2
W W W U U W U ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO (Note 1)
Input Supply Voltage .. – 0.3V to 6V TOP VIEW RUN, VOUT Voltages... – 0.3V to VIN RUN 1 5 VOUT SW Voltage (DC) ... – 0.3V to (VIN + 0.3V) GND 2 P-Channel Switch Source Current (DC) ... 800mA SW 3 4 VIN N-Channel Switch Sink Current (DC) ... 800mA S5 PACKAGE Peak SW Sink and Source Current (V 5-LEAD PLASTIC TSOT-23 IN = 3V) .. 1.3A Operating Temperature Range (Note 2) .. – 40°C to 85°C TJMAX = 125°C, θJA = 250°C/ W, θJC = 90°C/ W Junction Temperature (Notes 3, 5) .. 125°C ORDER PART NUMBER S5 PART MARKING Storage Temperature Range .. – 65°C to 150°C Lead Temperature (Soldering, 10 sec)... 300°C LTC3406ES5-1.2 LTBMQ
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 TA = 25
°
C. VIN = 3.6V unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VOUT Regulated Output Voltage IOUT = 100mA ● 1.164 1.2 1.236 V ∆VOVL Output Overvoltage Lockout ∆VOVL = VOVL – VOUT 2.5 6.25 10 % ∆VOUT Output Voltage Line Regulation VIN = 2.5V to 5.5V ● 0.04 0.4 %/V IPK Peak Inductor Current VIN = 3V, VOUT = 1.08V, Duty Cycle < 35% 0.75 1 1.25 A VLOADREG Output Voltage Load Regulation 0.5 % VIN Input Voltage Range ● 2.5 5.5 V IS Input DC Bias Current (Note 4) Active Mode VOUT = 1.08V, ILOAD = 0A 300 400 µA Sleep Mode VOUT = 1.236V, ILOAD = 0A 20 35 µA Shutdown VRUN = 0V, VIN = 5.5V 0.1 1 µA fOSC Oscillator Frequency VOUT = 1.2V ● 1.2 1.5 1.8 MHz VOUT = 0V 210 kHz RPFET RDS(ON) of P-Channel FET ISW = 100mA 0.4 0.5 Ω RNFET RDS(ON) of N-Channel FET ISW = –100mA 0.35 0.45 Ω ILSW SW Leakage VRUN = 0V, VSW = 0V or 5V, VIN = 5V ±0.01 ±1 µA VRUN RUN Threshold ● 0.3 1 1.5 V IRUN RUN Leakage Current ● ±0.01 ±1 µA
Note 1:
Absolute Maximum Ratings are those values beyond which the life
Note 4:
Dynamic supply current is higher due to the gate charge being of a device may be impaired. delivered at the switching frequency.
Note 2:
The LTC3406E-1.2 is guaranteed to meet performance
Note 5:
This IC includes overtemperature protection that is intended to specifications from 0°C to 70°C. Specifications over the –40°C to 85°C protect the device during momentary overload conditions. Junction operating temperature range are assured by design, characterization and temperature will exceed 125°C when overtemperature protection is active. correlation with statistical process controls. Continuous operation above the specified maximum operating junction
Note 3:
T temperature may impair device reliability. J is calculated from the ambient temperature TA and power dissipation PD according to the following formula: LTC3406-1.2: TJ = TA + (PD)(250°C/W) 340612fa 2