Datasheet LTC3406, LTC3406-1.5, LTC3406-1.8 (Analog Devices) - 3
| Hersteller | Analog Devices |
| Beschreibung | 1.5MHz, 600mA Synchronous Step-Down Regulator in ThinSOT |
| Seiten / Seite | 16 / 3 — ELECTRICAL CHARACTERISTICS. The |
| Dateiformat / Größe | PDF / 247 Kb |
| Dokumentensprache | Englisch |
ELECTRICAL CHARACTERISTICS. The
Modelllinie für dieses Datenblatt
Textversion des Dokuments
LTC3406 LTC3406-1.5/LTC3406-1.8
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
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 3:
TJ is calculated from the ambient temperature TA and power of a device may be impaired. dissipation PD according to the following formula:
Note 2:
The LTC3406E is guaranteed to meet performance specifications LTC3406: TJ = TA + (PD)(250°C/W) from 0°C to 70°C. Specifications over the –40°C to 85°C operating
Note 4:
The LTC3406 is tested in a proprietary test mode that connects temperature range are assured by design, characterization and correlation VFB to the output of the error amplifier. with statistical process controls.
Note 5:
Dynamic supply current is higher due to the gate charge being delivered at the switching frequency.
W U TYPICAL PERFOR A CE CHARACTERISTICS (From Figure1a Except for the Resistive Divider Resistor Values) Efficiency vs Input Voltage Efficiency vs Output Current Efficiency vs Output Current
100 95 95 VOUT = 1.2V VOUT = 1.5V 95 IOUT = 100mA IOUT = 10mA 90 VIN = 2.7V 90 90 VIN = 2.7V 85 IOUT = 1mA 85 85 VIN = 4.2V 80 IOUT = 600mA VIN = 4.2V 80 80 75 VIN = 3.6V VIN = 3.6V 70 75 75 EFFICIENCY (%) IOUT = 0.1mA EFFICIENCY (%) EFFICIENCY (%) 65 70 70 60 65 65 55 VOUT = 1.8V 50 60 60 2 3 4 5 6 0.1 1 10 100 1000 0.1 1 10 100 1000 INPUT VOLTAGE (V) OUTPUT CURRENT (mA) OUTPUT CURRENT (mA) 3406 G01 3406 G02 3406 G03
Reference Voltage vs Oscillator Frequency vs Efficiency vs Output Current Temperature Temperature
100 0.614 1.70 VOUT = 2.5V VIN = 3.6V VIN = 3.6V 95 1.65 VIN = 2.7V 0.609 90 1.60 VIN = 3.6V 0.604 85 1.55 VIN = 4.2V 80 0.599 1.50 75 1.45 EFFICIENCY (%) 0.594 FREQUENCY (MHz) 70 REFERENCE VOLTAGE (V) 1.40 0.589 65 1.35 60 0.584 1.30 0.1 1 10 100 1000 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 OUTPUT CURRENT (mA) TEMPERATURE (°C) TEMPERATURE (°C) 3406 G04 3406 G05 3406 G06 3406fa 3
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
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 3:
TJ is calculated from the ambient temperature TA and power of a device may be impaired. dissipation PD according to the following formula:
Note 2:
The LTC3406E is guaranteed to meet performance specifications LTC3406: TJ = TA + (PD)(250°C/W) from 0°C to 70°C. Specifications over the –40°C to 85°C operating
Note 4:
The LTC3406 is tested in a proprietary test mode that connects temperature range are assured by design, characterization and correlation VFB to the output of the error amplifier. with statistical process controls.
Note 5:
Dynamic supply current is higher due to the gate charge being delivered at the switching frequency.
W U TYPICAL PERFOR A CE CHARACTERISTICS (From Figure1a Except for the Resistive Divider Resistor Values) Efficiency vs Input Voltage Efficiency vs Output Current Efficiency vs Output Current
100 95 95 VOUT = 1.2V VOUT = 1.5V 95 IOUT = 100mA IOUT = 10mA 90 VIN = 2.7V 90 90 VIN = 2.7V 85 IOUT = 1mA 85 85 VIN = 4.2V 80 IOUT = 600mA VIN = 4.2V 80 80 75 VIN = 3.6V VIN = 3.6V 70 75 75 EFFICIENCY (%) IOUT = 0.1mA EFFICIENCY (%) EFFICIENCY (%) 65 70 70 60 65 65 55 VOUT = 1.8V 50 60 60 2 3 4 5 6 0.1 1 10 100 1000 0.1 1 10 100 1000 INPUT VOLTAGE (V) OUTPUT CURRENT (mA) OUTPUT CURRENT (mA) 3406 G01 3406 G02 3406 G03
Reference Voltage vs Oscillator Frequency vs Efficiency vs Output Current Temperature Temperature
100 0.614 1.70 VOUT = 2.5V VIN = 3.6V VIN = 3.6V 95 1.65 VIN = 2.7V 0.609 90 1.60 VIN = 3.6V 0.604 85 1.55 VIN = 4.2V 80 0.599 1.50 75 1.45 EFFICIENCY (%) 0.594 FREQUENCY (MHz) 70 REFERENCE VOLTAGE (V) 1.40 0.589 65 1.35 60 0.584 1.30 0.1 1 10 100 1000 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 OUTPUT CURRENT (mA) TEMPERATURE (°C) TEMPERATURE (°C) 3406 G04 3406 G05 3406 G06 3406fa 3