lm2798mm-2.0 National Semiconductor Corporation, lm2798mm-2.0 Datasheet - Page 2

• Manufacturer Part Number: lm2798mm-2.0
• Description: 120ma High Efficiency Step-down Switched Capacitor Voltage Converter With Voltage Monitoring
• Manufacturer: National Semiconductor Corporation

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