Datasheet

A3
Top View Bottom View
A1
C1
A3
C3
EN
FB
SW
GND
V
IN
EN
GND
SW
FB
B2
V
IN
A1
C3
C1
B2
V
IN
1
GND
2
EN
3
FB
4
SW
5
1
2
5
43
V
IN
SW
FB
EN
GND
L1: 2.2 PH
V
OUT
C
OUT
10 PF
C
IN
4.7 PF
LM3671-
ADJ
V
IN
2.7V to 5.5V
R1
R2
C1
C2
LM3671
LM3671Q
SNVS294Q –NOVEMBER 2004–REVISED NOVEMBER 2013 www.ti.com
DESCRIPTION (CONTINUED)
The LM3671 is available in SOT-23, tiny 5-bump DSBGA, and a 6-pin USON packages in leaded (PB) and lead-
free (NO PB) versions. A high-switching frequency of 2 MHz (typ.) allows use of tiny surface-mount components.
Only three external surface-mount components, an inductor and two ceramic capacitors, are required.
Figure 2. Typical Application Circuit for ADJ version
Connection Diagrams
Figure 3. Top View
SOT-23 Package
See Package Number DBV (2.92 mm x 2.84 mm x 1.2 mm)
Figure 4. 5-Bump DSBGA Package
See Package Number YZR0005 (1.05 mm x 1.38 mm x 0.6 mm)
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