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LM2798MMX-2.0 Folha de dados(PDF) 2 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Nome de Peças LM2798MMX-2.0
Descrição Electrónicos  120mA High Efficiency Step-Down Switched Capacitor Voltage Converter with Voltage Monitoring
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Fabricante Electrônico  NSC [National Semiconductor (TI)]
Página de início  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM2798MMX-2.0 Folha de dados(HTML) 2 Page - National Semiconductor (TI)

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Connection Diagram
LM2797/98
Mini SO-10 (MSOP-10) Package
NS Package #: MUB10A
20044502
Top View
Pin Description
Pin
Name
Description
1V
OUT
Regulated Output Voltage
2
C1-
First Flying Capacitor: Negative Terminal
3
C1+
First Flying Capicitor: Positive terminal
4V
IN
Input Voltage. Recommended V
IN Range: 2.6V to 5.5V
5
POK
Power-OK Indicator: Output voltage sense. Open-drain NFET output. With an
external pull-up resistor tied to POK, V(POK) will be high when V
OUT is
regulating correctly. When V
OUT falls out of regulation, the internal open-drain
FET pulls the POK voltage low.
6
BATOK
Battery-OK Indicator: Input voltage sense. Open-drain NFET output. With an
external pull-up resistor tied to BATOK, V(BATOK) will be high when V
IN >
2.85V (typ). LM2797/98 pulls V(BATOK) low when V
IN < 2.65V (typ.) , and/or
when the part is in shutdown [V(EN) = 0].
7
EN
Enable Logic Input. High voltage = ON, Low voltage = SHUTDOWN
8
C2+
Second Flying Capacitor: Positive Terminal
9
GND
Ground Connection
10
C2-
Second Flying Capacitor: Negative Terminal
Ordering Information
Nominal
Output
Voltage
V
OUT(NOM)
Turn-on
Time
Order Number
Package Marking
Supplied As:
1.80V
100µs
LM2797MM-1.8
S80B
1000 units on Tape-and Reel
LM2797MMX-1.8
3500 units on Tape-and-Reel
1.50V
400µs
LM2798MM-1.5
S56B
1000 units on Tape-and Reel
LM2798MMX-1.5
3500 units on Tape-and-Reel
1.80V
400µs
LM2798MM-1.8
S57B
1000 units on Tape-and Reel
LM2798MMX-1.8
3500 units on Tape-and-Reel
2.00V
400µs
LM2798MM-2.0
S58B
1000 units on Tape-and Reel
LM2798MMX-2.0
3500 units on Tape-and-Reel
www.national.com
2


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