Unless otherwise specified, the following conditions apply: VIN = 13.5 V,
TA = 25°C. Table 8-4 shows the circuit with the appropriate BOM from Figure 8-44.
![LM63615-Q1 LM63625-Q1 Efficiency LM63615-Q1 LM63625-Q1 Efficiency](/ods/images/SNVSB55H/GUID-2BC65A15-72E5-4ED2-828E-EFBE43348050-low.gif)
|
LM63625 |
VOUT
= 5 V |
ƒSW
= 400 kHz (AUTO) |
|
Figure 8-8 Efficiency![LM63615-Q1 LM63625-Q1 Efficiency LM63615-Q1 LM63625-Q1 Efficiency](/ods/images/SNVSB55H/GUID-4FA47337-3158-440A-B76D-44684318B3E6-low.gif)
LM63615 |
VOUT = 5
V |
ƒSW = 400 kHz
(AUTO) |
Figure 8-10 Efficiency![LM63615-Q1 LM63625-Q1 Efficiency LM63615-Q1 LM63625-Q1 Efficiency](/ods/images/SNVSB55H/GUID-7B274C91-7B78-422D-9A23-7146E47EDB6D-low.gif)
LM63625 |
VOUT = 3.3
V |
ƒSW = 400 kHz
(AUTO) |
Figure 8-12 Efficiency![LM63615-Q1 LM63625-Q1 Efficiency LM63615-Q1 LM63625-Q1 Efficiency](/ods/images/SNVSB55H/GUID-C9B28EB6-BA41-4E83-B20F-BD1A244A2F99-low.gif)
LM63615 |
VOUT = 3.3
V |
ƒSW = 400 kHz
(AUTO) |
Figure 8-14 Efficiency![LM63615-Q1 LM63625-Q1 Line
and Load Regulation LM63615-Q1 LM63625-Q1 Line
and Load Regulation](/ods/images/SNVSB55H/GUID-D0BEADE9-9A29-4854-9657-FD82B8639807-low.gif)
LM63625 |
VOUT = 5
V |
ƒSW = 2100 kHz
(AUTO) |
Figure 8-16 Line
and Load Regulation![LM63615-Q1 LM63625-Q1 Line
and Load Regulation LM63615-Q1 LM63625-Q1 Line
and Load Regulation](/ods/images/SNVSB55H/GUID-2C760828-18B3-483D-AADE-BBC9F76193A0-low.gif)
LM63615 |
VOUT = 5
V |
ƒSW = 2100 kHz
(AUTO) |
Figure 8-18 Line
and Load Regulation![LM63615-Q1 LM63625-Q1 Switching Frequency versus Output Current LM63615-Q1 LM63625-Q1 Switching Frequency versus Output Current](/ods/images/SNVSB55H/GUID-F1060184-2991-4AD6-9ECF-3E73096505FB-low.gif)
LM63625 |
VIN = 13.5
V |
ƒSW = 2100 kHz
(AUTO) |
Figure 8-20 Switching Frequency versus Output Current![LM63615-Q1 LM63625-Q1 Switching Frequency versus Input Voltage LM63615-Q1 LM63625-Q1 Switching Frequency versus Input Voltage](/ods/images/SNVSB55H/GUID-BDD48EA7-9F7D-429C-B8A2-6B447530CD07-low.gif)
LM63625 |
VOUT = 3.3
V |
ƒSW = 2100 kHz
(FPWM) |
Figure 8-22 Switching Frequency versus Input Voltage![LM63615-Q1 LM63625-Q1 Switching Frequency versus Input Voltage LM63615-Q1 LM63625-Q1 Switching Frequency versus Input Voltage](/ods/images/SNVSB55H/GUID-066E83E9-E37E-4FEE-9311-2EBFFBC875FE-low.gif)
LM63615 |
VOUT = 3.3
V |
ƒSW = 2100 kHz
(FPWM) |
Figure 8-24 Switching Frequency versus Input Voltage![LM63615-Q1 LM63625-Q1 Load
Transient LM63615-Q1 LM63625-Q1 Load
Transient](/ods/images/SNVSB55H/GUID-5FB16C3D-55DB-4F8E-B189-3936F4D842DC-low.gif)
LM63625 |
VOUT
= 3.3 V |
ƒSW
= 2100 kHz |
0 A to 2.5 A, 2 µs |
FPWM |
|
Figure 8-26 Load
Transient![LM63615-Q1 LM63625-Q1 Load
Transient LM63615-Q1 LM63625-Q1 Load
Transient](/ods/images/SNVSB55H/GUID-71019563-8308-4485-A840-3C9B5F84B5B6-low.gif)
LM63625 |
VOUT
= 5 V |
ƒSW
= 2100 kHz |
0 A to 2.5 A, 2 µs |
FPWM |
|
Figure 8-28 Load
Transient![LM63615-Q1 LM63625-Q1 Load
Transient LM63615-Q1 LM63625-Q1 Load
Transient](/ods/images/SNVSB55H/GUID-9D46C942-F3ED-486D-83CF-3F27EAFFE260-low.gif)
LM63625 |
VOUT
= 3.3 V |
ƒSW
= 2100 kHz |
1.5 A to 2.5 A, 2
µs |
AUTO |
|
Figure 8-30 Load
Transient![LM63615-Q1 LM63625-Q1 Load
Transient LM63615-Q1 LM63625-Q1 Load
Transient](/ods/images/SNVSB55H/GUID-C0BCB9F5-F89D-4F97-BBE0-68B89941218A-low.gif)
LM63625 |
VOUT
= 5 V |
ƒSW
= 2100 kHz |
1.5 A to 2.5 A, 2
µs |
AUTO |
|
Figure 8-32 Load
Transient![LM63615-Q1 LM63625-Q1 Dropout Voltage versus Output Current for -1% Drop LM63615-Q1 LM63625-Q1 Dropout Voltage versus Output Current for -1% Drop](/ods/images/SNVSB55H/GUID-612F34F0-BF7C-49CA-BCC2-E29500161709-low.gif)
LM63625 |
ƒSW = 140 kHz (AUTO) |
Figure 8-34 Dropout Voltage versus Output Current for -1% Drop![LM63615-Q1 LM63625-Q1 Dropout Voltage versus Output Current for -1% Drop LM63615-Q1 LM63625-Q1 Dropout Voltage versus Output Current for -1% Drop](/ods/images/SNVSB55H/GUID-008A8546-5E57-4205-9E2C-96260B25B5CC-low.gif)
LM63615 |
ƒSW = 140 kHz (AUTO) |
Figure 8-36 Dropout Voltage versus Output Current for -1% Drop![LM63615-Q1 LM63625-Q1 Input
Supply Current versus Input Voltage LM63615-Q1 LM63625-Q1 Input
Supply Current versus Input Voltage](/ods/images/SNVSB55H/GUID-7BF51520-6182-419D-B83B-0E94A44FF7B9-low.gif)
LM63625 |
IOUT = 0
A |
ƒSW = 2100 kHz
(AUTO) |
Figure 8-38 Input
Supply Current versus Input Voltage![LM63615-Q1 LM63625-Q1 Input
Supply Current versus Output Current LM63615-Q1 LM63625-Q1 Input
Supply Current versus Output Current](/ods/images/SNVSB55H/GUID-6AF0B6E5-5F28-44E5-A598-B9F4DABA6515-low.gif)
LM63625 |
VOUT = 5
V |
ƒSW = 2100 kHz
(AUTO) |
Figure 8-40 Input
Supply Current versus Output Current![LM63615-Q1 LM63625-Q1 Input
Supply Current versus Output Current LM63615-Q1 LM63625-Q1 Input
Supply Current versus Output Current](/ods/images/SNVSB55H/GUID-C51AE7D4-1433-4232-A026-2A25C686463F-low.gif)
LM63625 |
VOUT = 3.3
V |
ƒSW = 2100 kHz
(AUTO) |
Figure 8-42 Input
Supply Current versus Output Current![LM63615-Q1 LM63625-Q1 Efficiency LM63615-Q1 LM63625-Q1 Efficiency](/ods/images/SNVSB55H/GUID-3146A42D-D34C-4FEB-A41A-E0AE8B577933-low.gif)
LM63625 |
VOUT = 5
V |
ƒSW = 2100 kHz
(AUTO) |
Figure 8-9 Efficiency![LM63615-Q1 LM63625-Q1 Efficiency LM63615-Q1 LM63625-Q1 Efficiency](/ods/images/SNVSB55H/GUID-D7EAB54E-7BD0-4417-B976-CFB61193BBFB-low.gif)
LM63615 |
VOUT = 5
V |
ƒSW = 2100 kHz
(AUTO) |
Figure 8-11 Efficiency![LM63615-Q1 LM63625-Q1 Efficiency LM63615-Q1 LM63625-Q1 Efficiency](/ods/images/SNVSB55H/GUID-14A2E3CD-5CFB-4203-9402-F26E35E4F848-low.gif)
LM63625 |
VOUT = 3.3
V |
ƒSW = 2100 kHz
(AUTO) |
Figure 8-13 Efficiency![LM63615-Q1 LM63625-Q1 Efficiency LM63615-Q1 LM63625-Q1 Efficiency](/ods/images/SNVSB55H/GUID-8CCC9D1D-A3AB-475B-AB2E-7720A85C3BB7-low.gif)
LM63615 |
VOUT = 3.3
V |
ƒSW = 2100 kHz
(AUTO) |
Figure 8-15 Efficiency![LM63615-Q1 LM63625-Q1 Line
and Load Regulation LM63615-Q1 LM63625-Q1 Line
and Load Regulation](/ods/images/SNVSB55H/GUID-F225D0C9-1746-4429-A58E-3621D3FA5982-low.gif)
LM63625 |
VOUT = 3.3
V |
ƒSW = 2100 kHz
(AUTO) |
Figure 8-17 Line
and Load Regulation![LM63615-Q1 LM63625-Q1 Line
and Load Regulation LM63615-Q1 LM63625-Q1 Line
and Load Regulation](/ods/images/SNVSB55H/GUID-D33974F8-AD60-4C10-AA9F-27D28C8C3AEF-low.gif)
A.
LM63615 |
VOUT = 3.3
V |
ƒSW = 2100 kHz
(AUTO) |
Figure 8-19 Line
and Load Regulation![LM63615-Q1 LM63625-Q1 Switching Frequency versus Output Current LM63615-Q1 LM63625-Q1 Switching Frequency versus Output Current](/ods/images/SNVSB55H/GUID-59AC0B06-055B-4F24-8D71-E4A1F2B73A60-low.gif)
LM63615 |
VIN = 13.5
V |
ƒSW = 2100 kHz
(AUTO) |
Figure 8-21 Switching Frequency versus Output Current![LM63615-Q1 LM63625-Q1 Switching Frequency versus Input Voltage LM63615-Q1 LM63625-Q1 Switching Frequency versus Input Voltage](/ods/images/SNVSB55H/GUID-936B8882-7266-4409-880F-18C3054EE54B-low.gif)
LM63625 |
VOUT = 5
V |
ƒSW = 2100 kHz
(FPWM) |
Figure 8-23 Switching Frequency versus Input Voltage![LM63615-Q1 LM63625-Q1 Switching Frequency versus Input Voltage LM63615-Q1 LM63625-Q1 Switching Frequency versus Input Voltage](/ods/images/SNVSB55H/GUID-EA3E6F0D-070F-46ED-9144-A9FDDD428686-low.gif)
LM63615 |
VOUT = 5
V |
ƒSW = 2100 kHz
(FPWM) |
Figure 8-25 Switching Frequency versus Input Voltage![LM63615-Q1 LM63625-Q1 Load
Transient LM63615-Q1 LM63625-Q1 Load
Transient](/ods/images/SNVSB55H/GUID-7C3EC3A8-E270-424B-8897-07A387918F96-low.gif)
LM63615 |
VOUT
= 3.3 V |
ƒSW
= 2100 kHz |
0 A to 1.5 A, 2 µs |
FPWM |
|
Figure 8-27 Load
Transient![LM63615-Q1 LM63625-Q1 Load
Transient LM63615-Q1 LM63625-Q1 Load
Transient](/ods/images/SNVSB55H/GUID-FE03B6C8-06D6-4636-8B4C-57847E60B959-low.gif)
LM63615 |
VOUT
= 5 V |
ƒSW
= 2100 kHz |
0 A to 1.5 A, 2 µs |
FPWM |
|
Figure 8-29 Load
Transient![LM63615-Q1 LM63625-Q1 Load
Transient LM63615-Q1 LM63625-Q1 Load
Transient](/ods/images/SNVSB55H/GUID-8044F6B9-1A7F-4C52-8A49-18CBBDAE5F8C-low.gif)
LM63615 |
VOUT
= 3.3 V |
ƒSW
= 2100 kHz |
0.5 A to 1.5 A, 2
µs |
AUTO |
|
Figure 8-31 Load
Transient![LM63615-Q1 LM63625-Q1 Load
Transient LM63615-Q1 LM63625-Q1 Load
Transient](/ods/images/SNVSB55H/GUID-70843760-F3C2-4FC1-8F81-3AEECA4DD280-low.gif)
LM63615 |
VOUT
= 5 V |
ƒSW
= 2100 kHz |
0.5 A to 1.5 A, 2
µs |
AUTO |
|
Figure 8-33 Load
Transient![LM63615-Q1 LM63625-Q1 Dropout Voltage versus Output Current to 1.85 MHz LM63615-Q1 LM63625-Q1 Dropout Voltage versus Output Current to 1.85 MHz](/ods/images/SNVSB55H/GUID-930F1D80-BE09-4D52-88F8-8CFA50CD288F-low.gif)
LM63625 |
ƒSW = 1850 kHz (AUTO) |
Figure 8-35 Dropout Voltage versus Output Current to 1.85 MHz![LM63615-Q1 LM63625-Q1 Dropout Voltage versus Output Current to 1.85 MHz LM63615-Q1 LM63625-Q1 Dropout Voltage versus Output Current to 1.85 MHz](/ods/images/SNVSB55H/GUID-9AA17BDD-115A-48E9-BFB0-3D1DB0BABFAE-low.gif)
LM63615 |
ƒSW = 1850 kHz (AUTO) |
Figure 8-37 Dropout Voltage versus Output Current to 1.85 MHz![LM63615-Q1 LM63625-Q1 Input
Supply Current versus Input Voltage LM63615-Q1 LM63625-Q1 Input
Supply Current versus Input Voltage](/ods/images/SNVSB55H/GUID-E17BFD36-745B-46FE-922F-E473EC06A9DB-low.gif)
LM63615 |
IOUT = 0
A |
ƒSW = 2100 kHz
(AUTO) |
Figure 8-39 Input
Supply Current versus Input Voltage![LM63615-Q1 LM63625-Q1 Input
Supply Current versus Output Current LM63615-Q1 LM63625-Q1 Input
Supply Current versus Output Current](/ods/images/SNVSB55H/GUID-B2F684AE-D830-4CFA-BFC1-023CE84A4FDE-low.gif)
LM63615 |
VOUT = 5
V |
ƒSW = 2100 kHz
(AUTO) |
Figure 8-41 Input
Supply Current versus Output Current![LM63615-Q1 LM63625-Q1 Input
Supply Current versus Output Current LM63615-Q1 LM63625-Q1 Input
Supply Current versus Output Current](/ods/images/SNVSB55H/GUID-BB8EFAA4-7580-4020-A415-04C5F93D4A8D-low.gif)
LM63615 |
VOUT = 3.3
V |
ƒSW = 2100 kHz
(AUTO) |
Figure 8-43 Input
Supply Current versus Output Current
Unless otherwise specified, the following conditions apply: VIN = 13.5 V,
TA = 25°C. Figure 8-44 shows the
circuit with the appropriate BOM from Table 8-4.
Table 8-4 BOM for Typical Application
Curves
VOUT(1) |
FREQUENCY |
OUTPUT CURRENT |
COUT |
L |
U1 |
3.3 V |
400 kHz |
2.5 A |
3 × 22 µF |
6.8 µH, 22 mΩ |
LM63625D |
3.3 V |
2100 kHz |
2.5 A |
3 × 22 µF |
2.2 µH, 15 mΩ |
LM63625D |
5 V |
400 kHz |
2.5 A |
3 × 22 µF |
6.8 µH, 22 mΩ |
LM63625D |
5 V |
2100 kHz |
2.5 A |
3 × 22 µF |
2.2 µH, 15 mΩ |
LM63625D |
3.3 V |
400 kHz |
1.5 A |
2 × 22 µF |
10 µH, 40 mΩ |
LM63615D |
3.3 V |
2100 kHz |
1.5 A |
1 × 10 µF |
4.7 µH, 30 mΩ |
LM63615D |
5 V |
400 kHz |
1.5 A |
2 × 22 µF |
10 µH, 40 mΩ |
LM63615D |
5 V |
2100 kHz |
1.5 A |
1 × 10 µF |
4.7 µH, 30 mΩ |
LM63615D |
(1) The values in
this table were selected to enhance certain performance criteria and may not
represent typical values.