![](http://datasheet.mmic.net.cn/80000/LTM8052EV-PBF_datasheet_2358173/LTM8052EV-PBF_13.png)
LTM8052
13
8052f
applicaTions inForMaTion
For most applications, the design process is straight
forward, summarized as follows:
1. Look at Table 1 and find the row that has the desired
input range and output voltage.
2. Apply the recommended CIN, COUT, RADJ and RT
values.
Whilethesecomponentcombinationshavebeentestedfor
proper operation, it is incumbent upon the user to verify
proper operation over the intended system’s line, load and
environmental conditions. Bear in mind that the maximum
output current is limited by junction temperature, the
relationship between the input and output voltage mag-
nitude and polarity and other factors. Please refer to the
Table 1. Recommended Component Values and Configuration.
(TA = 25°C. See Typical Performance Characteristics for Load Conditions)
VIN
VOUT
CIN
COUT CERAMIC COUT ELECTROLYTIC
RADJ fOPTIMAL RT(OPTIMAL) fMAX RT(MIN)
6V to 36V 1.2 10F, 50V, 1210 100F, 6.3V, 1210 470F, 6.3V, 9mΩ, Chemi-Con,
APXF6R3ARA471MH80G
Open 200kHz
210k
250kHz
169k
6V to 36V 1.5 10F, 50V, 1210 100F, 6.3V, 1210 470F, 6.3V, 9mΩ, Chemi-Con,
APXF6R3ARA471MH80G
38.3k 300kHz
140k
350kHz
118k
6V to 36V 1.8 10F, 50V, 1210 100F, 6.3V, 1210 470F, 6.3V, 9mΩ, Chemi-Con,
APXF6R3ARA471MH80G
19.6k 350kHz
118k
400kHz
102k
6V to 36V 2.5 10F, 50V, 1210 100F, 6.3V, 1210 330F, 4V, 27mΩ, OS-CON, 4SVPC330M
9.09k 450kHz
90.9k
525kHz 78.7k
6V to 36V 3.3 10F, 50V, 1210 100F, 6.3V, 1210 330F, 4V, 27mΩ, OS-CON, 4SVPC330M
5.62k 550kHz
75.0k
625kHz 64.9k
7V to 36V
5
10F, 50V, 1210 100F, 6.3V, 1210 120F, 16V, 27mΩ, OS-CON, 16SVPC120M
3.09k 600kHz
68.1k
700kHz 57.6k
10V to 36V
8
10F, 50V, 1210 100F, 10V, 1210 120F, 16V, 27mΩ, OS-CON, 16SVPC120M 1.74k 625kHz
64.9k
750kHz 53.6k
15V to 36V 12 10F, 50V, 1210 47F, 16V, 1210 120F, 16V, 27mΩ, OS-CON, 16SVPC120M 1.10k 650kHz
61.9k
800kHz 49.9k
22V to 36V 18 10F, 50V, 1210 22F, 25V, 1210 47F, 20V, 45mΩ, OS-CON, 20SVPS47M
604
675kHz
59.0k
900kHz 44.2k
28V to 36V 24 4.7F, 50V, 1210 10F, 50V, 1206 47F, 35V, 30mΩ, OS-CON, 35SVPC47M
523
700kHz
57.6k
1MHz
39.2k
9V to 15V 1.2 10F, 50V, 1210 100F, 6.3V, 1210 470F, 6.3V, 9mΩ, Chemi-Con,
APXF6R3ARA471MH80G
Open 200kHz
210k
525kHz 78.7k
9V to 15V 1.5 10F, 50V, 1210 100F, 6.3V, 1210 470F, 6.3V, 9mΩ, Chemi-Con,
APXF6R3ARA471MH80G
38.3k 300kHz
140k
650kHz 61.9k
9V to 15V 1.8 10F, 50V, 1210 100F, 6.3V, 1210 470F, 6.3V, 9mΩ, Chemi-Con,
APXF6R3ARA471MH80G
19.6k 350kHz
118k
800kHz 49.9k
9V to 15V 2.5 10F, 50V, 1210 100F, 6.3V, 1210 330F, 4V, 27mΩ, OS-CON, 4SVPC330M
9.09k 450kHz
90.9k
1MHz
39.2k
9V to 15V 3.3 10F, 50V, 1210 100F, 6.3V, 1210 330F, 4V, 27mΩ, OS-CON, 4SVPC330M
5.62k 550kHz
75.0k
1MHz
39.2k
9V to 15V
5
10F, 50V, 1210 100F, 6.3V, 1210 120F, 16V, 27mΩ, OS-CON, 16SVPC120M 3.09k 600kHz
68.1k
1MHz
39.2k
10V to 15V
8
10F, 50V, 1210 100F, 10V, 1210 120F, 16V, 27mΩ, OS-CON, 16SVPC120M 1.74k 625kHz
64.9k
1MHz
39.2k
18V to 36V 1.2 10F, 50V, 1210 100F, 6.3V, 1210 470F, 6.3V, 9mΩ, Chemi-Con,
APXF6R3ARA471MH80G
Open 200kHz
210k
250kHz
169k
18V to 36V 1.5 10F, 50V, 1210 100F, 6.3V, 1210 470F, 6.3V, 9mΩ, Chemi-Con,
APXF6R3ARA471MH80G
38.3k 300kHz
140k
350kHz
118k
18V to 36V 1.8 10F, 50V, 1210 100F, 6.3V, 1210 470F, 6.3V, 9mΩ, Chemi-Con,
APXF6R3ARA471MH80G
19.6k 350kHz
118k
400kHz
102k
18V to 36V 2.5 10F, 50V, 1210 100F, 6.3V, 1210 330F, 4V, 27mΩ, OS-CON, 4SVPC330M
9.09k 450kHz
90.9k
525kHz 78.7k
18V to 36V 3.3 10F, 50V, 1210 100F, 6.3V, 1210 330F, 4V, 27mΩ, OS-CON, 4SVPC330M
5.62k 550kHz
75.0k
625kHz 64.9k
18V to 36V
5
10F, 50V, 1210 100F, 6.3V, 1210 120F, 16V, 27mΩ, OS-CON, 16SVPC120M 3.09k 600kHz
68.1k
700kHz 57.6k
18V to 36V
8
10F, 50V, 1210 100F, 10V, 1210 120F, 16V, 27mΩ, OS-CON, 16SVPC120M 1.74k 625kHz
64.9k
750kHz 53.6k
18V to 36V 12 10F, 50V, 1210 47F, 16V, 1210 120F, 16V, 27mΩ, OS-CON, 16SVPC120M 1.10k 650kHz
61.9k
800kHz 49.9k
2.7V to
32.5V*
–3.3 10F, 50V, 1210 100F, 6.3V, 1210 330F, 4V, 27mΩ, OS-CON, 4SVPC330M
5.62k 550kHz
75.0k
625kHz 64.9k
2V to 31V* –5 10F, 50V, 1210 100F, 6.3V, 1210 120F, 16V, 27mΩ, OS-CON, 16SVPC120M 3.09k 600kHz
68.1k
700kHz 57.6k
2V to 28V* –8 10F, 50V, 1210 100F, 10V, 1210 120F, 16V, 27mΩ, OS-CON, 16SVPC120M 1.74k 625kHz
64.9k
750kHz 53.6k
3V to 24V* –12 10F, 50V, 1210 47F, 16V, 1210 120F, 16V, 27mΩ, OS-CON, 16SVPC120M 1.10k 650kHz
61.9k
800kHz 49.9k
*Running voltage. See the Typical Performance Characteristics section for starting requirements.
Note: An input bulk capacitor is required.