Texas Instruments LM3242 6MHz, 750mA Miniature, Adjustable, Step-Down DC-DC EVM LM3242TM-EV/NOPB LM3242TM-EV/NOPB Ficha De Dados
Códigos do produto
LM3242TM-EV/NOPB
VCON
FB
NC
SGND
BPEN
EN
VIN
SW
PGND
VCON
FB
NC
SGND
BPEN
EN
VIN
SW
PGND
SNOSB48D – OCTOBER 2011 – REVISED MARCH 2013
Connection Diagrams
The actual physical placement of the package marking will vary from part to part.
Figure 1. 9-Bump Thin DSBGA Package
Large Bump (0.4 mm Pitch)
Package Number YFQ0009
PIN DESCRIPTIONS
Pin #
Name
Description
Voltage Control Analog input. VCON controls V
OUT
in PWM and ECO modes. VCON may also
A1
VCON
be used to force bypass condition by setting VCON > V
IN
/2.5.
A2
SGND
Signal ground for analog and control circuitry.
A3
PGND
Power ground for the Power MOSFETs and gate drive circuitry
Enable Input. Set this digital input high for normal operation. For shutdown, set low. Do not leave
B1
EN
EN pin floating.
B2
NC
Do not connect to PGND directly — Internally connected to SGND.
Switching Node connection to the internal PFET switch and NFET synchronous rectifier. Connect
B3
SW
to an inductor with a saturation current rating that exceeds the maximum Switch Peak Current
Limit specification of the LM3242.
Limit specification of the LM3242.
Bypass Enable input. Set this digital input high to force bypass operation. For normal operation
C1
BPEN
with automatic bypass, set low or connect to ground. Do not leave this pin floating.
Feedback Analog Input and Bypass FET output. Connect to the output at the output filter
C2
FB
capacitor.
C3
VIN
Voltage supply input for SMPS converter.
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.
during storage or handling to prevent electrostatic damage to the MOS gates.
2
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