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.![Buck Only
Efficiency GUID-593B7D8A-CBA0-482C-8320-A14770042665-low.gif](/ods/images/ZHCSK24D/GUID-593B7D8A-CBA0-482C-8320-A14770042665-low.gif)
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. ![Efficiency with Sense Resistor GUID-9A0409BE-F264-4DB4-ACE0-B24A78FB4409-low.gif](/ods/images/ZHCSK24D/GUID-9A0409BE-F264-4DB4-ACE0-B24A78FB4409-low.gif)
VOUT = 5.1
V |
fSW = 400
kHz |
RSENS = 15
mΩ |
Figure 11-4 Efficiency with Sense Resistor![Load
Regulation GUID-ED2E14E7-B3A3-43FA-A075-F76D9C0FA521-low.gif](/ods/images/ZHCSK24D/GUID-ED2E14E7-B3A3-43FA-A075-F76D9C0FA521-low.gif)
VOUT = 5.1
V |
fSW = 400
kHz |
|
Figure 11-6 Load
Regulation![Load Transient Without Cable Compensation GUID-15541E35-C060-4547-B92F-CEB586AB32AE-low.gif](/ods/images/ZHCSK24D/GUID-15541E35-C060-4547-B92F-CEB586AB32AE-low.gif)
ILOAD = 0 A to 3.5A |
RIMON = 0
Ω |
Figure 11-8 Load Transient Without Cable Compensation![Load Transient With Cable Compensation GUID-A22FCCF5-D0C8-407C-B7AB-320351A8E743-low.gif](/ods/images/ZHCSK24D/GUID-A22FCCF5-D0C8-407C-B7AB-320351A8E743-low.gif)
ILOAD = 0 A to 3.5A |
RIMON
= 13 kΩ |
Figure 11-10 Load Transient With Cable Compensation
Figure 11-12 Dropout Characteristic
Figure 11-14 100-mA Output Ripple![Startup Relate to VIN GUID-39C2969D-A910-4E39-985F-A1558C4F5089-low.gif](/ods/images/ZHCSK24D/GUID-39C2969D-A910-4E39-985F-A1558C4F5089-low.gif)
VIN = 0 V to 13.5 V |
CC1 = Rd |
ILOAD =
3A |
Figure 11-16 Startup Relate to VIN![Startup Relate to EN GUID-35F47DC0-9B38-45BD-987F-E1A0F7EB8EB4-low.gif](/ods/images/ZHCSK24D/GUID-35F47DC0-9B38-45BD-987F-E1A0F7EB8EB4-low.gif)
EN = 0V to 5V |
CC1 = Rd |
ILOAD =
3A |
Figure 11-18 Startup Relate to EN![Rd Assert GUID-3023DFE7-F7D5-4E54-93AB-4A65DD6A773E-low.gif](/ods/images/ZHCSK24D/GUID-3023DFE7-F7D5-4E54-93AB-4A65DD6A773E-low.gif)
CC1 = Open to
Rd |
CC2 = Open |
ILOAD =
3A |
Figure 11-20 Rd Assert![Enable into Short Without External FET GUID-5BCCA994-BE3B-4A25-984E-BBC5B09DF060-low.gif](/ods/images/ZHCSK24D/GUID-5BCCA994-BE3B-4A25-984E-BBC5B09DF060-low.gif)
EN to High |
VBUS = GND |
RLIMIT = 13
kΩ |
Figure 11-22 Enable into Short Without External FET![Enable into 1-Ω Load Without External FET GUID-29A45ECF-6E41-4CFF-AF5A-84F5B7216CA8-low.gif](/ods/images/ZHCSK24D/GUID-29A45ECF-6E41-4CFF-AF5A-84F5B7216CA8-low.gif)
EN to High |
VBUS = GND |
RLIMIT = 13
kΩ |
Figure 11-24 Enable into 1-Ω Load Without External FET![Enable into Short With External FET GUID-CBFA30FB-6161-4E6D-83C6-84CA88349A49-low.gif](/ods/images/ZHCSK24D/GUID-CBFA30FB-6161-4E6D-83C6-84CA88349A49-low.gif)
EN to High |
VBUS = GND |
RLIMIT = 6.8
kΩ |
Figure 11-26 Enable into Short With External FET
Figure 11-28 VBUS Hot Short to GND Without External FET
Figure 11-30 CC2 Hot Short to GND![Thermal Sensing with NTC Behavior 2 GUID-E0237725-970B-4738-BB7A-F1DB8CC031D8-low.gif](/ods/images/ZHCSK24D/GUID-E0237725-970B-4738-BB7A-F1DB8CC031D8-low.gif)
VNTC = 0 V to 4
V |
CC1 = Rd |
CC2 = OPEN |
Figure 11-32 Thermal Sensing with NTC Behavior 2![Buck Only
Efficiency GUID-BF167601-AF99-4520-93CE-A786902B7BFC-low.gif](/ods/images/ZHCSK24D/GUID-BF167601-AF99-4520-93CE-A786902B7BFC-low.gif)
VOUT = 5.1
V |
fSW = 2100
kHz |
|
Figure 11-3 Buck Only
Efficiency![Efficiency with Sense Resistor GUID-B4813AC1-92BD-4B69-8E59-3D628CB4992A-low.gif](/ods/images/ZHCSK24D/GUID-B4813AC1-92BD-4B69-8E59-3D628CB4992A-low.gif)
VOUT = 5.1
V |
fSW = 2100
kHz |
RSENS = 15
mΩ |
Figure 11-5 Efficiency with Sense Resistor![Line
Regulation GUID-0B21B79D-848E-42A3-AFB8-E5E2374E406E-low.gif](/ods/images/ZHCSK24D/GUID-0B21B79D-848E-42A3-AFB8-E5E2374E406E-low.gif)
VOUT = 5.1
V |
fSW = 400
kHz |
|
Figure 11-7 Line
Regulation![Load Transient Without Cable Compensation GUID-1569200C-5631-4D1E-B50E-CB3CA888250D-low.gif](/ods/images/ZHCSK24D/GUID-1569200C-5631-4D1E-B50E-CB3CA888250D-low.gif)
ILOAD = 0.75 A to 2.25A |
RIMON = 0
Ω |
Figure 11-9 Load Transient Without Cable Compensation![Load Transient With Cable Compensation GUID-3BEA1F48-00AD-4C37-BCA9-42D5E8DE582C-low.gif](/ods/images/ZHCSK24D/GUID-3BEA1F48-00AD-4C37-BCA9-42D5E8DE582C-low.gif)
ILOAD = 0.75 A to 2.25A |
RIMON = 13
kΩ |
Figure 11-11 Load Transient With Cable Compensation
Figure 11-13 3.5-A Output Ripple
Figure 11-15 No Load Output Ripple![Shutdown Relate to VIN GUID-93633391-0583-4D15-971E-02ABAF85427B-low.gif](/ods/images/ZHCSK24D/GUID-93633391-0583-4D15-971E-02ABAF85427B-low.gif)
VIN = 13.5 V to 0 V |
CC1 = Rd |
ILOAD =
3A |
Figure 11-17 Shutdown Relate to VIN![Shutdown Relate to EN GUID-F72E5193-853E-4015-BC27-99C46DD100A6-low.gif](/ods/images/ZHCSK24D/GUID-F72E5193-853E-4015-BC27-99C46DD100A6-low.gif)
EN = 5V to 0V |
CC1 = Rd |
ILOAD =
3A |
Figure 11-19 Shutdown Relate to EN![Rd Desert GUID-C59DD347-8BBC-477E-80A1-E3EC3F549253-low.gif](/ods/images/ZHCSK24D/GUID-C59DD347-8BBC-477E-80A1-E3EC3F549253-low.gif)
CC1 = Rd to
Open |
CC2 = Open |
ILOAD =
3A |
Figure 11-21 Rd Desert
Figure 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![Thermal Sensing with NTC Behavior 1 GUID-27AFFEAB-2B40-4E43-89E7-75D5CB294850-low.gif](/ods/images/ZHCSK24D/GUID-27AFFEAB-2B40-4E43-89E7-75D5CB294850-low.gif)
VNTC = 0V to
3V |
CC1 = Rd |
CC2 = OPEN |
Figure 11-31 Thermal Sensing with NTC Behavior 1