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| LM3668_15 Datasheet, PDF (10/30 Pages) Texas Instruments – 1-A, High-Efficiency Dual-Mode Single-Inductor Buck-Boost DC-DC Converter | |||
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LM3668
SNVS449O â JUNE 2007 â REVISED APRIL 2015
www.ti.com
Typical Characteristics (continued)
Typical Application Circuit (see Figure 46): VIN = 3.6 V, L = 2.2 µH, CIN = 10 µF, COUT = 22 µF(4), TA = 25°C , unless otherwise
stated.
Figure 25. Load Transient in Boost Mode (Forced PWM
Mode) VIN = 2.7 V, VOUT = 3 V, Load = 0 to 500 mA
Figure 26. Load Transient in Buck-Boost Mode (Forced
PWM Mode) VIN = 3.05 V, VOUT = 3 V, Load = 0 to 500 mA
Figure 27. Load Transient in Buck Mode (Auto Mode) VIN =
4.2 V, VOUT = 3.3 V, Load = 50 to 150 mA
Figure 28. Load Transient in Boost Mode (Auto Mode) VIN =
2.7 V, VOUT = 3.3 V, Load = 50 to 150 mA
Figure 29. Load Transient in Buck-Boost Mode (Auto Mode)
VIN = 3.6 V, VOUT = 3.3 V, Load = 50-150 mA
Figure 30. Load Transient in Buck Mode (Forced PWM
Mode) VIN = 5.5 V, VOUT = 5 V, Load = 0 to 500 mA
10
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