LM27342 datasheet(5/42 Pages) TI1

No de pièce	LM27342

Description	2 MHz 1.5A/2A Wide Input Range Step-Down DC-DC Regulator with Frequency Synchronization

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LM27341, LM27342, LM27341Q, LM27342Q

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SNVS497D – NOVEMBER 2008 – REVISED FEBRUARY 2010

Typical Performance Characteristics

All curves taken at VIN = 12V, VBOOST - VSW = 4.3V and TA = 25°C, unless specified otherwise.

Efficiency vs Load Current

Load Transient

VOUT = 5V, fSW = 2 MHz

VOUT = 5V, IOUT = 100 mA - 2A @ slewrate = 2A / µs

Refer to Figure 40

Figure 5.

Figure 6.

Efficiency vs Load Current

Load Transient

VOUT = 3.3V, fSW = 2 MHz

VOUT = 3.3V, IOUT = 100 mA - 2A @ slewrate = 2A / µs

Refer to Figure 46

Figure 7.

Figure 8.

Efficiency vs Load Current

Load Transient

VOUT = 1.8V, fSW = 2 MHz

VOUT = 1.8V, IOUT = 100 mA - 2A @ slewrate = 2A / µs

Refer to Figure 55

Figure 9.

Figure 10.

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