Rainbow-electronics MAX15040 Manual do Utilizador descarregar pdf (Página 3)

MAX15040

High-Efficiency, 4A, Step-Down Regulator with

Integrated Switches in 2mm x 2mm Package

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS (continued)

= V

= 3.3V, T

= -40°C to +85°C. Typical values are at T

= +25°C, circuit of Figure 1, unless otherwise noted.) (Note 3)

PARAMETER CONDITIONS MIN TYP MAX UNITS

ERROR AMPLIFIER

FB Regulation Accuracy Using internal reference 0.594 0.600 0.606 V

Open-Loop Voltage Gain 1kΩ from COMP to GND (Note 4) 115 dB

Error-Amplifier Unity-Gain

Bandwidth

Series 5kΩ, 100nF from COMP to GND (Note 4) 26 MHz

= 2.4V to 2.6V 0 V

- 1.80

Error-Amplifier Common-Mode

Input Range

= 2.6V to 3.6V 0 V

- 1.85

COMP

= 1.2V, sinking 500

Error-Amplifier Minimum Output

Current

COMP

= 1.0V, sourcing 1000

µA

FB Input Bias Current V

= 0.7V, using internal reference, T

= +25°C -200 -100 nA

REFIN/SS

REFIN/SS Charging Current V

REFIN/SS

= 0.45V 7 8 9 µA

REFIN/SS Discharge Resistance 520 Ω

= 2.4V to 2.6V 0 V

- 1.80

REFIN/SS Common-Mode Range

= 2.6V to 3.6V 0 V

- 1.85

= +25°C 30 µV

REFIN/SS Offset Voltage Error amplifier offset

-4.5 +4.5 mV

LX (ALL BUMPS COMBINED)

= V

BST

- V

= 2.5V 21

LX On-Resistance, High Side I

= -0.4A

= V

BST

- V

= 3.3V 19

mΩ

= 2.5V 16

LX On-Resistance, Low Side I

= 0.4A

= 3.3V 15

mΩ

High-side sourcing 5.5 7

LX Peak Current-Limit Threshold V

= 2.5V

Low-side sinking 5.5 7

= 0V -2

= +25°C

= 3.6V +2LX Leakage Current V

= 3.6V, V

= 0V

= +85°C 0.2

µA

LX Switching Frequency V

= 2.5V to 3.3V, T

= +25°C 0.92 1 1.03 MHz

LX Maximum Duty Cycle V

= 2.5V to 3.3V, T

= +25°C 92 96 %

LX Minimum On-Time 80 ns

RMS LX Output Current 4A

ENABLE

EN Input Logic-Low Threshold 0.7 V

EN Input Logic-High Threshold 1.7 V

= +25°C 1

EN Input Current

= 0 or 3.6V,

= V

= 3.6V

= +85°C 0.3

µA

1 2 3 4 5 6 7 8 ... 14 15

MAX15040 1

Comentários a estes Manuais

Sem comentários

Rainbow-electronics MAX15040 Manual do Utilizador Página 3

Comentários a estes Manuais

Manuais e produtos relacionados com Sensores Rainbow-electronics MAX15040