LM3676SD-ADJ/NOPB National Semiconductor, LM3676SD-ADJ/NOPB Datasheet - Page 2

• Manufacturer Part Number: LM3676SD-ADJ/NOPB
• Description: IC CONV DC-DC 600MA ADJ 8-LLP
• Manufacturer: National Semiconductor
• Type: Step-Down (Buck)r

Specifications of LM3676SD-ADJ/NOPB

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 1.1 ~ 3.3 V
• Current - Output: 600mA
• Frequency - Switching: 2MHz
• Voltage - Input: 2.9 ~ 5.5 V
• Operating Temperature: -30°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-LLP
• Power - Output: 1.78W
• For Use With: LM3676SD-ADJEV - BOARD EVALUATION LM3676SD-ADJ
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM3676SD-ADJTR

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Connection Diagram and Package Mark Information
Pin Descriptions (8-Lead LLP)
Pin #
1
2
3
4
5
6
7
8
MODE
PGND
SGND
Name
VIN
SW
EN
NC
FB
FIGURE 2. Typical Application Circuit for ADJ version
LLP8 Package NS Package Number SDA08A
Description
Power Ground Pin.
Switching node connection to the internal PFET switch and NFET synchronous rectifier.
Mode Control Pin: > 1.0V selects continous PWM mode ; <0.4V selects Auto (PFM-PWM)
mode. Do not leave this pin floating.
Feedback analog input. Connect directly to the output filter capacitor for fixed voltage
versions. For adjustable version external resistor dividers are required (Figure 2). The
internal resistor dividers are disabled for the adjustable version.
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.
Not Connected. Leave Pin Floating. Do Not Connect to other pins
Signal Ground Pin.
Power Supply input. Connect to the input filter capacitor (Figure 1).
FIGURE 3.
2
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