LM3677_0810 Datasheet, PDF (2/24 Pages) National Semiconductor (TI) – 3MHz, 600mA Miniature Step-Down DC-DC Converter for Ultra Low Voltage Circuits

Connection Diagram and Package Mark Information
5-Bump micro SMD Package
NS Package Number TLA05FEA
FIGURE 3. 5 Bump Micro SMD Package
30008444
FIGURE 4. 6 Pin LLP Package
30008400
Pin Descriptions
Pin #
A1
1
A3
6
C1
3
C3
4
B2
2, 5
Name
V_IN
GND
EN
FB
SW
Ordering Information
Order Number
LM3677TL-1.2 (Note 1)
LM3677TLX-1.2 (Note 1)
LM3677TL-1.3
LM3677TLX-1.3
LM3677TL-1.5
LM3677TLX-1.5
Spec
NOPB
NOPB
NOPB
NOPB
NOPB
NOPB
Description
Power supply input. Connect to the input filter capacitor (Figure 1).
Ground pin.
Enable pin. The device is in shutdown mode when voltage to this pin is < 0.4V and
enabled when > 1.0V. Do not leave this pin floating.
Feedback analog input. Connect directly to the output filter capacitor ( FIGURE 1).
Switching node connection to the internal PFET switch and NFET synchronous
rectifier.
Package Marking
3
V
X
Supplied As
250 units, Tape-and-Reel
3000 units, Tape-and-Reel
250 units, Tape-and-Reel
3000 units, Tape-and-Reel
250 units, Tape-and-Reel
3000 units, Tape-and-Reel
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