Unless otherwise specified the following conditions apply: VIN
= 13.5 V, fSW = 400 kHz, L = 3.3 µH, CSENSE = 141 µF,
CPA_BUS = 1 µF, CPB_BUS = 1 µF, ILIM = GND,
TA = 25 °C.
Unless otherwise specified the following conditions apply: VIN
= 13.5 V, fSW = 400 kHz, L = 3.3 µH, CSENSE = 141 µF,
CPA_BUS = 1 µF, CPB_BUS = 1 µF, ILIM = GND,
TA = 25 °C.![Buck Only
Efficiency GUID-C7E421FA-5DEF-471E-B437-F7A65265A93E-low.gif](/ods/images/JAJSMQ9/GUID-C7E421FA-5DEF-471E-B437-F7A65265A93E-low.gif)
VSET = GND |
fSW = 400
kHz |
L = 3.3 uH |
Figure 11-3 Buck Only
Efficiency. Unless otherwise specified the following conditions apply: VIN
= 13.5 V, fSW = 400 kHz, L = 3.3 µH, CSENSE = 141 µF,
CPA_BUS = 1 µF, CPB_BUS = 1 µF, ILIM = GND,
TA = 25 °C.
Figure 11-5 Load
Regulation![Load Transient Without
Cable Compensation GUID-20201102-CA0I-SXLK-35G0-V62TV2BTCJ6K-low.gif](/ods/images/JAJSMQ9/GUID-20201102-CA0I-SXLK-35G0-V62TV2BTCJ6K-low.gif)
VSET =
VSENSE |
IPA_BUS = 0 A to 3 A |
IPB_BUS = 2.4
A |
fSW = 400
kHZ |
Figure 11-7 Load Transient Without
Cable Compensation![Load Transient Without
Cable Compensation GUID-20201102-CA0I-MG4H-GM2X-KJMBQ0DQ3FLG-low.gif](/ods/images/JAJSMQ9/GUID-20201102-CA0I-MG4H-GM2X-KJMBQ0DQ3FLG-low.gif)
VSET =
VSENSE |
IPA_BUS = 0.75 A to 2.25 A |
IPB_BUS = 0
A |
fSW = 400
kHZ |
Figure 11-9 Load Transient Without
Cable Compensation![Load Transient With Cable
Compensation GUID-20201102-CA0I-PDKW-KZHW-9V82P69CDW8W-low.gif](/ods/images/JAJSMQ9/GUID-20201102-CA0I-PDKW-KZHW-9V82P69CDW8W-low.gif)
VSET = GND |
IPB_BUS = 0.75 A to 2.25 A |
IPA_BUS = 0
A |
fSW = 400
kHZ |
Figure 11-11 Load Transient With Cable
Compensation![6-A Output Ripple GUID-20201102-CA0I-ZNLB-HCPT-02TXJ5PJN86F-low.gif](/ods/images/JAJSMQ9/GUID-20201102-CA0I-ZNLB-HCPT-02TXJ5PJN86F-low.gif)
VSET = GND |
IPA_BUS = 3
A |
IPB_BUS = 2.4
A |
fSW = 400 kHZ |
Figure 11-13 6-A Output Ripple![No Load Output
Ripple GUID-20201102-CA0I-WQ1F-MCBQ-LN62RSP5QPWR-low.gif](/ods/images/JAJSMQ9/GUID-20201102-CA0I-WQ1F-MCBQ-LN62RSP5QPWR-low.gif)
VSET = GND |
IPA_BUS = 0
A |
IPB_BUS = 0
A |
fSW = 400 kHZ |
Figure 11-15 No Load Output
Ripple![Shutdown Relate to
VIN GUID-5C4DEBA5-FEAB-41F4-8F4A-C80C074357D4-low.gif](/ods/images/JAJSMQ9/GUID-5C4DEBA5-FEAB-41F4-8F4A-C80C074357D4-low.gif)
VIN = 13.5 V to 0 V |
PA_CC1 =
Rd |
IPA_BUS = 3
A |
Figure 11-17 Shutdown Relate to
VIN![Shutdown Relate to
EN GUID-7F3157D0-36FD-4A61-B764-EA51CE707879-low.gif](/ods/images/JAJSMQ9/GUID-7F3157D0-36FD-4A61-B764-EA51CE707879-low.gif)
EN = 5 V to 0 V |
|
IPB_BUS = 2.4
A |
Figure 11-19 Shutdown Relate to
EN![Rd Desert GUID-7E7615E6-9FD6-4357-B971-373FDD0478E3-low.gif](/ods/images/JAJSMQ9/GUID-7E7615E6-9FD6-4357-B971-373FDD0478E3-low.gif)
PA_CC1 = Rd to
Open |
PA_CC2 = Open |
IPA_BUS = 3
A |
Figure 11-21 Rd Desert
Figure 11-23 Short Circuit
Recovery
Figure 11-25 1-Ω Load Recovery
Figure 11-27 PA_CC2 Hot Short to
GND![OUT Hot Short to
GND GUID-2BE121CC-E187-4F76-A8B0-2706DF625C5A-low.gif](/ods/images/JAJSMQ9/GUID-2BE121CC-E187-4F76-A8B0-2706DF625C5A-low.gif)
PA_CC1 =
Rd |
OUT = GND |
PA/B_BUS NO LOAD |
Figure 11-29 OUT Hot Short to
GND![Thermal Sensing - NTC
Temperature HOT Behavior GUID-9E9F85CB-CDB1-4C5E-BB4E-9008EC096398-low.gif](/ods/images/JAJSMQ9/GUID-9E9F85CB-CDB1-4C5E-BB4E-9008EC096398-low.gif)
|
VTS = 0 V to 4
V |
PA_CC1 =
Rd |
PA_CC2 = OPEN |
|
Figure 11-31 Thermal Sensing - NTC
Temperature HOT Behavior![400-khz EMI Results
(Without CM Filter) GUID-20210315-CA0I-MLSH-X6D0-RV9K45BV3N3S-low.gif](/ods/images/JAJSMQ9/GUID-20210315-CA0I-MLSH-X6D0-RV9K45BV3N3S-low.gif)
Load = 6 A |
fSW = 400
kHz |
L = 3.3 uH |
Figure 11-4 400-khz EMI Results
(Without CM Filter)
Figure 11-6 Line
Regulation![Load Transient Without
Cable Compensation GUID-F410F0F3-DC66-44E8-8023-6B2380249266-low.png](/ods/images/JAJSMQ9/GUID-F410F0F3-DC66-44E8-8023-6B2380249266-low.png)
VSET =
VSENSE |
IPB_BUS = 0 A to 2.4 A |
IPA_BUS = 3
A |
fSW = 400
kHZ |
Figure 11-8 Load Transient Without
Cable Compensation![Load Transient With Cable
Compensation GUID-11B96E3F-720E-4C20-9653-C8C2913A32A1-low.png](/ods/images/JAJSMQ9/GUID-11B96E3F-720E-4C20-9653-C8C2913A32A1-low.png)
VSET = GND |
IPB_BUS = 0 A to 2.4 A |
IPA_BUS = 3 A |
fSW = 400 kHZ |
Figure 11-10 Load Transient With Cable
Compensation
Figure 11-12 Dropout
Characteristic![100-mA Output
Ripple GUID-20201102-CA0I-79NM-SRM5-47NV1KJZND8K-low.gif](/ods/images/JAJSMQ9/GUID-20201102-CA0I-79NM-SRM5-47NV1KJZND8K-low.gif)
VSET = GND |
IPA_BUS = 0.1
A |
IPB_BUS = 0
A |
fSW = 400 kHZ |
Figure 11-14 100-mA Output
Ripple![Startup Relate to
VIN GUID-B0880FC2-93C4-443C-85D0-7D571EC1136B-low.gif](/ods/images/JAJSMQ9/GUID-B0880FC2-93C4-443C-85D0-7D571EC1136B-low.gif)
VIN = 0 V to 13.5 V |
PA_CC1 =
Rd |
IPA_BUS = 3
A |
Figure 11-16 Startup Relate to
VIN![Startup Relate to
EN GUID-6F927A0A-E7CE-4274-AB56-68363FBF1E30-low.gif](/ods/images/JAJSMQ9/GUID-6F927A0A-E7CE-4274-AB56-68363FBF1E30-low.gif)
EN = 0 V to 5 V |
|
IPB_BUS = 2.4
A |
Figure 11-18 Startup Relate to
EN![Rd Assert GUID-4845565F-1E7E-47FB-8008-751E12D868FC-low.gif](/ods/images/JAJSMQ9/GUID-4845565F-1E7E-47FB-8008-751E12D868FC-low.gif)
PA_CC1 = Open to
Rd |
PA_CC2 = Open |
IPA_BUS = 3
A |
Figure 11-20 Rd Assert![Enable Into Short GUID-0520CFF3-A5CF-4E4D-90DB-5504F5DC1B24-low.gif](/ods/images/JAJSMQ9/GUID-0520CFF3-A5CF-4E4D-90DB-5504F5DC1B24-low.gif)
EN to High |
PA_BUS = GND |
PB_BUS = GND |
Figure 11-22 Enable Into Short![Enable Into 1-Ω
Load GUID-20201102-CA0I-ZRHT-DL73-FZNKWG8GGG1G-low.gif](/ods/images/JAJSMQ9/GUID-20201102-CA0I-ZRHT-DL73-FZNKWG8GGG1G-low.gif)
EN to High |
PA_BUS = 1 Ω |
PB_BUS = 1 Ω |
Figure 11-24 Enable Into 1-Ω
Load
Figure 11-26 VBUS Hot Short to
GND![OUT short to 5.1-Ω
Load GUID-20024563-126B-41E9-8A98-D572E4933D27-low.gif](/ods/images/JAJSMQ9/GUID-20024563-126B-41E9-8A98-D572E4933D27-low.gif)
PA_CC1 =
Rd |
OUT = 5.1 Ω |
PA/B_BUS NO LOAD |
Figure 11-28 OUT short to 5.1-Ω
Load![Thermal Sensing - NTC
Temperature WARM Behavior GUID-E4D4C289-B9A5-4060-9FE2-894BB36452B0-low.gif](/ods/images/JAJSMQ9/GUID-E4D4C289-B9A5-4060-9FE2-894BB36452B0-low.gif)
VTS = 0 V to 2.6
V |
PA_CC1 =
Rd |
PA_CC2 = OPEN |
Figure 11-30 Thermal Sensing - NTC
Temperature WARM Behavior