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LM2751SDX-B bảng dữ liệu(PDF) 2 Page - Texas Instruments

tên linh kiện LM2751SDX-B
Giải thích chi tiết về linh kiện  LM2751 Regulated 2X, 1.5X Switched Capacitor White LED Driver
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nhà sản xuất  TI [Texas Instruments]
Trang chủ  http://www.ti.com
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LM2751SDX-B bảng dữ liệu(HTML) 2 Page - Texas Instruments

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Die-Attach Pad: GND
VOUT
C1+
VIN
CS0
CS1
C2+
C1-
GND
C2-
EN
1
2
3
4
5
10
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6
Die-Attach Pad: GND
VOUT
C1+
VIN
CS0
CS1
C2+
C1-
GND
C2-
EN
Top View
Bottom View
LM2751
SNVS299B – APRIL 2005 – REVISED MAY 2013
www.ti.com
DESCRIPTION (CONTINUED)
The LM2751 provides excellent efficiency without the use of an inductor by operating the charge pump in a gain
of 3/2 or 2. The proper gain for maintaining regulation is chosen so that efficiency is maximized over the input
voltage range.
LM2751 uses constant frequency pre-regulation to minimize conducted noise on the input and provide a
predictable switching frequency. The switching frequency is programmable to 725kHz, 300kHz, 37kHz, or
9.5kHz.
LM2751 is available in a 10-pin SON No-Pullback Package.
Connection Diagram
Figure 1. 10-pin SON No Pullback Package (3mm × 3mm × 0.8mm)
See Package Number DSC0010A
PIN DESCRIPTIONS
Pin #
Name
Description
1
VOUT
Pre-Regulated Output.
2
C1+
Flying Capacitor C1 Connection.
3
VIN
Input Supply Range: 2.8V to 5.5V.
4
CS0
Frequency Select Input 0.
5
CS1
Frequency Select Input 1.
6
EN
Enable Pin Logic Input.
7
C2−
Flying Capacitor C2 Connection.
8
GND
Ground.
9
C1−
Flying Capacitor C1 Connection.
10
C2+
Flying Capacitor C2 Connection.
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.
2
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Copyright © 2005–2013, Texas Instruments Incorporated
Product Folder Links: LM2751


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