Datasheet LTC3423, LTC3424 (Analog Devices) - 3
| Fabricante | Analog Devices |
| Descripción | Low Output Voltage, 3MHz Micropower Synchronous Boost Converters |
| Páginas / Página | 12 / 3 — ELECTRICAL CHARACTERISTICS The |
| Formato / tamaño de archivo | PDF / 211 Kb |
| Idioma del documento | Inglés |
ELECTRICAL CHARACTERISTICS The
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LTC3423/LTC3424
ELECTRICAL CHARACTERISTICS The
●
denotes specifications that apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. VIN = 1.2V, VOUT = 3.3V unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX UNITS
SHDN Input High VSHDN = VIN = VOUT 1 V SHDN Input Low 0.4 V SHDN Input Current VSHDN = 5.5V 0.01 1 µA
Note 1:
Absolute Maximum Ratings are those values beyond which the life
Note 3:
Current is measured into VDD since the supply current is of a device may be impaired. bootstrapped to the VDD pin. The outputs are not switching.
Note 2:
The LTC3423/LTC3424 are guaranteed to meet performance
Note 4:
Once the output is started, the IC is not dependant upon the VIN specifications from 0°C to 70°C. Specifications over the –40°C to 85°C supply. operating temperature range are assured by design, characterization and correlation with statistical process controls.
W U TYPICAL PERFOR A CE CHARACTERISTICS Transient Response Switching Waveform on SW Pin 150mA to 450mA
VOUT 100mV/DIV SW AC COUPLED 0.5V/DIV 450mA IOUT 0V 150mA ILOAD = 500mA 100ns/DIV 3423/24 G01 COUT = 44µF 200µs/DIV 3423/24 G02 VOUT 1.8V L = 2.2µH fOSC = 1MHz
Burst Mode Operation Burst Mode Operation at 500
µ
A Load at 10mA Load
VOUT VOUT 100mV/DIV 100mV/DIV AC COUPLED AC COUPLED SW SW 1V/DIV 1V/DIV VIN = 1.2V 1ms/DIV 3423/24 G03 VIN = 1.2V 500µs/DIV 3423/24 G04 VOUT = 1.8V VOUT = 1.8V COUT = 44µF COUT = 44µF MODE/SYNC PIN = HIGH MODE/SYNC PIN = HIGH 34234f 3
ELECTRICAL CHARACTERISTICS The
●
denotes specifications that apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. VIN = 1.2V, VOUT = 3.3V unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX UNITS
SHDN Input High VSHDN = VIN = VOUT 1 V SHDN Input Low 0.4 V SHDN Input Current VSHDN = 5.5V 0.01 1 µA
Note 1:
Absolute Maximum Ratings are those values beyond which the life
Note 3:
Current is measured into VDD since the supply current is of a device may be impaired. bootstrapped to the VDD pin. The outputs are not switching.
Note 2:
The LTC3423/LTC3424 are guaranteed to meet performance
Note 4:
Once the output is started, the IC is not dependant upon the VIN specifications from 0°C to 70°C. Specifications over the –40°C to 85°C supply. operating temperature range are assured by design, characterization and correlation with statistical process controls.
W U TYPICAL PERFOR A CE CHARACTERISTICS Transient Response Switching Waveform on SW Pin 150mA to 450mA
VOUT 100mV/DIV SW AC COUPLED 0.5V/DIV 450mA IOUT 0V 150mA ILOAD = 500mA 100ns/DIV 3423/24 G01 COUT = 44µF 200µs/DIV 3423/24 G02 VOUT 1.8V L = 2.2µH fOSC = 1MHz
Burst Mode Operation Burst Mode Operation at 500
µ
A Load at 10mA Load
VOUT VOUT 100mV/DIV 100mV/DIV AC COUPLED AC COUPLED SW SW 1V/DIV 1V/DIV VIN = 1.2V 1ms/DIV 3423/24 G03 VIN = 1.2V 500µs/DIV 3423/24 G04 VOUT = 1.8V VOUT = 1.8V COUT = 44µF COUT = 44µF MODE/SYNC PIN = HIGH MODE/SYNC PIN = HIGH 34234f 3