Unless otherwise specified the following conditions apply: VIN = 13.5 V, fSW = 400 kHz, L = 10 µH, COUT_CSP = 66 µF, COUT_CSN = 0.1 µF, CBUS = 1 µF, TA = 25 °C.
Unless otherwise specified the following conditions apply: VIN = 13.5 V, fSW = 400 kHz, L = 10 µH, COUT_CSP = 66 µF, COUT_CSN = 0.1 µF, CBUS = 1 µF, TA = 25 °C.VOUT = 5.1 V | fSW = 400 kHz | |
Figure 11-2 Buck Only Efficiency. Unless otherwise specified the following conditions apply: VIN = 13.5 V, fSW = 400 kHz, L = 10 µH, COUT_CSP = 66 µF, COUT_CSN = 0.1 µF, CBUS = 1 µF, TA = 25 °C. RSENS = 15 mΩ | fSW = 400 kHz | |
Figure 11-4 Efficiency With Sense ResistorVOUT = 5.1 V | fSW = 400 kHz | |
Figure 11-6 Load Regulation
ILOAD = 0 A to 3.5 A |
RIMON = 0
Ω |
Figure 11-8 Load Transient Without Cable Compensation
ILOAD = 0 A to 3.5 A |
RIMON
= 13 kΩ |
Figure 11-10 Load Transient With Cable CompensationFigure 11-12 Dropout Characteristic Figure 11-14 100-mA Output Ripple
VIN = 0 V to 13.5 V |
CC1 = Rd |
ILOAD = 3
A |
Figure 11-16 Startup Relate to VIN
EN = 0 V to 5 V |
CC1 = Rd |
ILOAD = 3
A |
Figure 11-18 Startup Relate to EN
CC1 = Open to
Rd |
CC2 = Open |
ILOAD = 3
A |
Figure 11-20 Rd Assert
EN to High |
VBUS = GND |
RLIMIT = 13
kΩ |
Figure 11-22 Enable Into Short Without External FET
EN to High |
VBUS = GND |
RLIMIT = 13
kΩ |
Figure 11-24 Enable Into 1-Ω Load Without External FET
EN to High |
VBUS = GND |
RLIMIT = 6.8
kΩ |
Figure 11-26 Enable Into Short With External FETFigure 11-28 VBUS Hot Short to GND Without External FET Figure 11-30 CC2 Hot Short to GND
CC1 = Rd |
CC2 = OPEN |
NO LOAD |
Figure 11-32 VBUS Short to BAT Recovery With External FET
CC1 = Rd |
CC2 = OPEN |
NO LOAD |
Figure 11-34 CC Short to BAT Recovery
CC1 = Rd |
CC2 = OPEN |
NO LOAD |
Figure 11-36 DP Short to BAT Recovery
VNTC = 0 V to 4
V |
CC1 = Rd |
CC2 = OPEN |
Figure 11-38 Thermal Sensing With NTC Behavior 2VOUT = 5.1 V | fSW = 2100 kHz | L = 2.2uH |
Figure 11-3 Buck Only EfficiencyRSENS = 15 mΩ | fSW = 2100 kHz | L = 2.2uH |
Figure 11-5 Efficiency With Sense ResistorVOUT = 5.1 V | fSW = 400 kHz | |
Figure 11-7 Line Regulation
ILOAD = 0.75 A to 2.25 A |
RIMON = 0
Ω |
Figure 11-9 Load Transient Without Cable Compensation
ILOAD = 0.75 A to 2.25 A |
RIMON = 13
kΩ |
Figure 11-11 Load Transient With Cable CompensationFigure 11-13 3.5-A Output Ripple Figure 11-15 No Load Output Ripple
VIN = 13.5 V to 0 V |
CC1 = Rd |
ILOAD = 3
A |
Figure 11-17 Shutdown Relate to VIN
EN = 5 V to 0 V |
CC1 = Rd |
ILOAD = 3
A |
Figure 11-19 Shutdown Relate to EN
CC1 = Rd to
Open |
CC2 = Open |
ILOAD = 3
A |
Figure 11-21 Rd DesertFigure 11-23 Short Circuit Recovery Without External FET Figure 11-25 1-Ω Load Recovery Without External FET Figure 11-27 Short Circuit Recovery With External FET Figure 11-29 VBUS Hot Short to GND With External FET
CC1 = Rd |
CC2 = OPEN |
NO LOAD |
Figure 11-31 VBUS Short to BAT With External FET
CC1 = Rd |
CC2 = OPEN |
NO LOAD |
Figure 11-33 CC Short to BAT
CC1 = Rd |
CC2 = OPEN |
NO LOAD |
Figure 11-35 DP Short to BAT
VNTC = 0 V to 3
V |
CC1 = Rd |
CC2 = OPEN |
Figure 11-37 Thermal Sensing With NTC Behavior 1