Datasheet

LM3691
SNVS506I –MAY 2008–REVISED MAY 2013 www.ti.com
Connection Diagram
Figure 3. 6-Bump Thin DSBGA Package, Large Bump
See Package Number YZR0006LCA
PIN DESCRIPTIONS
Pin DSBGA Name Description
Enable pin. The device is in shutdown mode when voltage to this pin is <0.4V and enabled when
A1 EN >1.2V.
Do not leave this pin floating.
Mode Pin: Mode = 1, Forced PWM
B1 MODE Mode = 0, ECO
Do not leave this pin floating.
C1 FB Feedback analog input. Connect directly to the output filter capacitor. (Figure 1)
A2 VIN Power supply input. Connect to the input filter capacitor. (Figure 1)
B2 SW Switching node connection to the internal PFET switch and NFET synchronous rectifier.
C2 GND Ground pin.
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
ORDERING INFORMATION
(1)(2)
DSBGA PACKAGE
ORDERABLE VOLTAGE OPTION (V)
LM3691TL-0.75/NOPB
0.75
LM3691TLX-0.75/NOPB
LM3691TL-1.0/NOPB
1
LM3691TLX-1.0/NOPB
LM3691TL-1.2/NOPB
1.2
LM3691TLX-1.2/NOPB
LM3691TL-1.5/NOPB
1.5
LM3691TLX-1.5/NOPB
LM3691TL-1.8/NOPB
1.8
LM3691TLX-1.8/NOPB
LM3691TL-2.5/NOPB
2.5
LM3691TLX-2.5/NOPB
LM3691TL-3.3/NOPB
3.3
LM3691TLX-3.3/NOPB
(1) For the most current package and ordering information, see the Package Option Addendum at the end
of this document, or see the TI web site at www.ti.com.
(2) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.
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