LM3670MFX-ADJ/NOPB National Semiconductor, LM3670MFX-ADJ/NOPB Datasheet - Page 14
LM3670MFX-ADJ/NOPB
Manufacturer Part Number
LM3670MFX-ADJ/NOPB
Description
IC CONV DC/DC STEP-DOWN SOT23-5
Manufacturer
National Semiconductor
Series
PowerWise®r
Type
Step-Down (Buck)r
Datasheet
1.LM3670MFX-ADJNOPB.pdf
(17 pages)
Specifications of LM3670MFX-ADJ/NOPB
Internal Switch(s)
Yes
Synchronous Rectifier
No
Number Of Outputs
1
Voltage - Output
0.7 ~ 3.3 V
Current - Output
350mA
Frequency - Switching
1MHz
Voltage - Input
2.5 ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
SOT-23-5, SC-74A, SOT-25
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power - Output
-
Other names
LM3670MFX-ADJ
LM3670MFX-ADJTR
LM3670MFX-ADJTR
www.national.com
Application Information
VOUT (V)
1.875
1.24
1.24
1.1
1.2
1.5
1.6
1.7
2.5
R1 (KΩ)
240
280
300
221
402
442
487
549
806
TABLE 3. Adjustable LM3670 Configurations for Various V
R2 (KΩ)
200
200
200
150
200
200
200
200
200
(Continued)
C1 (pF)
68
56
56
75
39
39
33
30
22
14
C2 (pF)
none
none
none
none
none
none
none
120
82
L (µH)
4.7
4.7
4.7
4.7
10
10
10
10
10
OUT
(Continued)
CIN (µF)
4.7
4.7
4.7
4.7
4.7
4.7
4.7
4.7
4.7
COUT (µF)
Note: (10 ||
14.7
10
10
10
10
10
10
10
22
4.7)