Datasheet LTC3564 (Analog Devices) - 3
| Manufacturer | Analog Devices |
| Description | 2.25MHz, 1.25A Synchronous Step-Down Regulator |
| Pages / Page | 20 / 3 — ELECTRICAL CHARACTERISTICS The |
| File Format / Size | PDF / 269 Kb |
| Document Language | English |
ELECTRICAL CHARACTERISTICS The
Model Line for this Datasheet
Text Version of Document
LTC3564
ELECTRICAL CHARACTERISTICS The
●
denotes specifications which apply over the full operating junction temperature range, otherwise specifications are TA = 25
°
C. VIN = 3.6V unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
IS Input DC Bias Current (Note 5) Active Mode VFB = 0.5V or VOUT = 90%, ILOAD = 0A 300 400 μA Sleep Mode VFB = 0.62V or VOUT = 103%, ILOAD = 0A 20 35 μA Shutdown VRUN = 0V, VIN = 4.2V 0.1 1 μA fOSC Oscillator Frequency VFB = 0.6V or VOUT = 100% ● 1.8 2.25 2.7 MHz RPFET RDS(ON) of P-Channel FET S5 Package 0.15 0.2 Ω DCB Package 0.15 Ω RNFET RDS(ON) of N-Channel FET S5 Package 0.15 0.2 Ω DCB Package 0.15 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 tSOFTSTART Soft-Start Time VFB from 10% to 90% Full Scale 0.6 0.9 1.2 ms
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 3:
TJ is calculated from the ambient temperature TA and power may cause permanent damage to the device. Exposure to any Absolute dissipation PD according to the following formula: Maximum Rating condition for extended periods may affect device LTC3564ES5: TJ = TA + (PD)(215°C/W) reliabilty and lifetime. LTC3564EDCB: TJ = TA + (PD)(64°C/W)
Note 2:
The LTC3564E is guaranteed to meet performance specifications
Note 4:
The LTC3564 is tested in a proprietary test mode. from 0°C to 125°C junction temperature. Specifications over the –40°C to
Note 5:
Dynamic supply current is higher due to the gate charge being 125°C operating junction termperature range are assured by design, delivered at the switching frequency. characterization and correlation with statistical process controls. The LTC3564I is guaranteed over the full –40°C to 125°C operating junction
Note 6:
This IC includes overtemperature protection that is intended to temperature range. High junction temperatures degrade operating protect the device during momentary overload conditions. Junction lifetimes. Operating lifetime is derated at junction temperatures greater temperature will exceed 125°C when overtemperature protection is active. than 125°C. Continuous operation above the specified maximum operating junction temperature may impair device reliability. 3564f 3
ELECTRICAL CHARACTERISTICS The
●
denotes specifications which apply over the full operating junction temperature range, otherwise specifications are TA = 25
°
C. VIN = 3.6V unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
IS Input DC Bias Current (Note 5) Active Mode VFB = 0.5V or VOUT = 90%, ILOAD = 0A 300 400 μA Sleep Mode VFB = 0.62V or VOUT = 103%, ILOAD = 0A 20 35 μA Shutdown VRUN = 0V, VIN = 4.2V 0.1 1 μA fOSC Oscillator Frequency VFB = 0.6V or VOUT = 100% ● 1.8 2.25 2.7 MHz RPFET RDS(ON) of P-Channel FET S5 Package 0.15 0.2 Ω DCB Package 0.15 Ω RNFET RDS(ON) of N-Channel FET S5 Package 0.15 0.2 Ω DCB Package 0.15 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 tSOFTSTART Soft-Start Time VFB from 10% to 90% Full Scale 0.6 0.9 1.2 ms
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 3:
TJ is calculated from the ambient temperature TA and power may cause permanent damage to the device. Exposure to any Absolute dissipation PD according to the following formula: Maximum Rating condition for extended periods may affect device LTC3564ES5: TJ = TA + (PD)(215°C/W) reliabilty and lifetime. LTC3564EDCB: TJ = TA + (PD)(64°C/W)
Note 2:
The LTC3564E is guaranteed to meet performance specifications
Note 4:
The LTC3564 is tested in a proprietary test mode. from 0°C to 125°C junction temperature. Specifications over the –40°C to
Note 5:
Dynamic supply current is higher due to the gate charge being 125°C operating junction termperature range are assured by design, delivered at the switching frequency. characterization and correlation with statistical process controls. The LTC3564I is guaranteed over the full –40°C to 125°C operating junction
Note 6:
This IC includes overtemperature protection that is intended to temperature range. High junction temperatures degrade operating protect the device during momentary overload conditions. Junction lifetimes. Operating lifetime is derated at junction temperatures greater temperature will exceed 125°C when overtemperature protection is active. than 125°C. Continuous operation above the specified maximum operating junction temperature may impair device reliability. 3564f 3
