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LM2750SD-ADJ Fiches technique(PDF) 2 Page - Texas Instruments

No de pièce LM2750SD-ADJ
Description  LM2750 Low Noise Switched Capacitor Boost Regulator
Download  24 Pages
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

LM2750SD-ADJ Fiches technique(HTML) 2 Page - Texas Instruments

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background image
Top View
1
2
3
4
5
10
9
8
7
6
VOUT
VOUT
GND/FB*
SD
GND
C+
VIN
VIN
C-
GND
Bottom View
10
9
8
7
6
1
2
3
4
5
Die-Attach
Pad (DAP)
GND
Die-Attach
Pad (DAP)
GND
VOUT
VOUT
GND/FB*
SD
GND
C+
VIN
VIN
C-
GND
* LM2750-5.0: Pin 3 = GND; LM2750-ADJ: Pin 3 = FB
LM2750
SNVS180L – APRIL 2002 – REVISED MAY 2013
www.ti.com
DESCRIPTION (CONTINUED)
A perfect fit for space-constrained, battery-powered applications, the LM2750 requires only 3 external
components: one input capacitor, one output capacitor, and one flying capacitor. Small, inexpensive ceramic
capacitors are recommended for use. These capacitors, in conjunction with the 1.7MHz fixed switching frequency
of the LM2750, yield low output voltage ripple, beneficial for systems requiring a low-noise supply. Pre-regulation
minimizes input current ripple, reducing input noise to negligible levels.
A tightly controlled soft-start feature limits inrush currents during part activation. Shutdown completely
disconnects the load from the input. Output current limiting and thermal shutdown circuitry protect both the
LM2750 and connected devices in the event of output shorts or excessive current loads.
Connection Diagram
Figure 1. LM2750 10-Pin WSON/SON (3mm X 3mm)
See Package Number NGY0010A or DSC0010A
Pin Names and Numbers apply to both NGY0010A and DSC0010A packages.
Pin Descriptions
Pin #(s)
Pin Name
Description
8, 9
VIN
Input Voltage - The pins must be connected externally.
1, 2
VOUT
Output Voltage - These pins must be connected externally.
10
CAP+
Flying Capacitor Positive Terminal
7
CAP-
Flying Capacitor Negative Terminal
Active-Low Shutdown Input. A 200k
Ω resistor is connected internally between this pin and
4
SD
GND to pull the voltage on this pin to 0V, and shut down the part, when the pin is left floating.
LM2750-5.0: GND
This pin must be connected externally to the ground pins (pins 5, 6, and the DAP).
3
LM2750-ADJ: FB
Feedback Pin
5, 6, DAP
GND
Ground - These pins must be connected externally.
2
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Copyright © 2002–2013, Texas Instruments Incorporated
Product Folder Links: LM2750


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