LM3677LE-1.8EV National Semiconductor, LM3677LE-1.8EV Datasheet - Page 2
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LM3677LE-1.8EV
Manufacturer Part Number
LM3677LE-1.8EV
Description
BOARD EVAL FOR LM3677LE-1.8
Manufacturer
National Semiconductor
Series
PowerWise®r
Specifications of LM3677LE-1.8EV
Main Purpose
DC/DC, Step Down
Outputs And Type
1, Non-Isolated
Voltage - Output
1.8V
Current - Output
600mA
Voltage - Input
2.7 ~ 5.5V
Regulator Topology
Buck
Frequency - Switching
3MHz
Board Type
Fully Populated
Utilized Ic / Part
LM3677
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Power - Output
-
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LM3677TL-1.2 (Note 1)
LM3677TLX-1.2 (Note 1)
LM3677TL-1.3
LM3677TLX-1.3
LM3677TL-1.5
LM3677TLX-1.5
Connection Diagram and Package Mark Information
Pin Descriptions
Ordering Information
C1
C3
A1
A3
B2
Order Number
Pin #
5-Bump micro SMD Package
2, 5
1
6
3
4
NOPB
NOPB
NOPB
NOPB
NOPB
NOPB
Spec
Name
GND
SW
V
EN
FB
IN
FIGURE 3. 5 Bump Micro SMD Package
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.
FIGURE 4. 6 Pin LLP Package
Package Marking
V
X
3
2
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
NS Package Number TLA05FEA
Supplied As
30008400
30008444