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LM3207 数据表(PDF) 2 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
部件名 LM3207
功能描述  650mA Miniature, Adjustable, Step-Down DC-DC Converter for RF Power Amplifiers with Integrated Vref LDO
Download  19 Pages
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制造商  NSC [National Semiconductor (TI)]
网页  http://www.national.com
标志 NSC - National Semiconductor (TI)

LM3207 数据表(HTML) 2 Page - National Semiconductor (TI)

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Connection Diagrams
20165399
9–Bump Thin Micro SMD Package, Large Bump
NS Package Number TLA09TTA
Order Information
Order Number
Package Marking (Note)
Supplied As
LM3207TL
XVS/34
250 units, Tape-and-Reel
LM3207TLX
XVS/34
3000 units, Tape-and-Reel
Note: The actual physical placement of the package marking will vary from part to part. The package marking “X” designates the date
code. “V” is a NSC internal code for die traceability. “S” designates the device type as switcher device. Both will vary considerably. “34”
identifies the device (part number, option, etc.).
Pin Descriptions
Pin #
Name
Description
A1
PV
IN
Power Supply Voltage Input.
B1
EN
LDO
LDO Enable Input. Set this digital input high to turn on LDO (EN pin must also be set high). For
shutdown, set low.
C1
FB
Feedback Analog Input. Connect to the output at the output filter capacitor.
C2
V
CON
Voltage Control Analog input. V
CON controls VOUT in PWM mode.
C3
LDO
LDO Output Voltage.
B3
SGND
Analog and Control Ground.
A3
PGND
Power Ground.
A2
SW
Switch node connection to the internal PFET switch and NFET synchronous rectifier. Connect to
an inductor with a saturation current rating that exceeds the maximum Switch Peak Current Limit
specification of the LM3207.
B2
EN
PWM enable Input. Set this digital input high for normal operation. For shutdown, set low.
www.national.com
2


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