LM2670S-ADJ datasheet(7/36 Pages) TI

Part #	LM2670S-ADJ

Description	LM2670 SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator with Sync

PDF	36 Pages

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Manufacturer	TI [Texas Instruments]

Direct Link	http://www.ti.com

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7 / 36 page

LM2670

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SNVS036J – APRIL 2000 – REVISED APRIL 2013

Typical Performance Characteristics (continued)

Discontinuous Mode Switching Waveforms

Load Transient Response for Continuous Mode

VIN = 20V, VOUT = 5V, ILOAD = 500 mA

VIN = 20V, VOUT = 5V

L = 10

μH, COUT = 400 μF, COUTESR = 13 mΩ

L = 33

μH, COUT = 200 μF, COUTESR = 26 mΩ

A: Output Voltage, 100 mV//div, AC-Coupled

A: VSW Pin Voltage, 10 V/div

B: Load Current: 500 mA to 3A Load Pulse

B: Inductor Current, 1 A/div

C: Output Ripple Voltage, 20 mV/div AC-Coupled

Figure 16.

Figure 17.

Load Transient Response for Discontinuous Mode

VIN = 20V, VOUT = 5V,

L = 10

μH, COUT = 400 μF, COUTESR = 13 mΩ

A: Output Voltage, 100 mV/div, AC-Coupled

B: Load Current: 200 mA to 3A Load Pulse

Figure 18.

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LM2670S-ADJ Datasheet(PDF) 7 Page - Texas Instruments