LM3370 datasheet(11/33 Pages) TI1

Part #	LM3370

Description	Dual Synchronous Step-Down DC-DC Converter

PDF	33 Pages

Scroll/Zoom	100%

Manufacturer	TI1 [Texas Instruments]

Direct Link	http://www.ti.com

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11 / 33 page

LM3370

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SNVS406N – NOVEMBER 2005 – REVISED MAY 2013

Typical Performance Characteristics (continued)

LM3370, Circuit of Typical Application Circuit, VIN = 3.6V, VOUT1 = 1.5V and VOUT2 = 2.5V, L = 2.2 µH (NR3015T2R2M), CIN =

4.7 µF (0805) and COUT = 10 µF (0805) and TA = 25°C, unless otherwise noted.

Typical Operation Waveform

VIN = 3.6V, VOUT1 = 1.5V, VOUT2 = 2.5V,

Startup at PWM for BUCK1

Load = 600 mA Each

(VIN = 3.6V, VOUT = 1.5V, Load = 200 mA)

Figure 21.

Figure 22.

Startup at PWM for BUCK2

Line Transient

(VIN = 3.6V, VOUT = 2.5V, Load = 200 mA)

(VOUT1 = 1.2V)

Figure 23.

Figure 24.

Line Transient

Load Transient in PFM MODE

(VOUT2 = 1.8V)

(VOUT1 = 1.5V)

Figure 25.

Figure 26.

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LM3370 Datasheet(PDF) 11 Page - Texas Instruments