lm2770sdx-12157 National Semiconductor Corporation, lm2770sdx-12157 Datasheet - Page 2

• Manufacturer Part Number: lm2770sdx-12157
• Description: High Efficiency Switched Capacitor Step-down Dc/dc Regulator With Sleep Mode
• Manufacturer: National Semiconductor Corporation

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Connection Diagram and Package Mark Information
Pin Description
Order Information
Output Voltages
1.2V / 1.5V
1.2V / 1.5V
1.2V / 1.575V
1.2V / 1.575V
Pin #
10
1
2
3
4
5
9
8
7
6
Order Number
LM2770SD-1215
LM2770SDX-1215
LM2770SD-12157
LM2770SDX-12157
SLEEP
Name
V
GND
V
C2+
C1+
C2-
C1-
EN
V
OUT
SEL
IN
10-Pin Non-Pullback Leadless Frame Package (LLP-10)
National Semiconductor Package Number SDA10A
Output Voltage Select Logic Input. If V
is low, V
options)
Enable Pin Logic Input. If high, part is enabled. If low, part is in shutdown.
Flying Capacitor 2: Positive Termial
Ground
Flying Capacitor 2: Negative terminal
Sleep Mode Logic Input. If high, the part operates in sleep mode, and the
output is driven by a low power linear regulator. If low, the part operates in
full-power mode, and the output is driven by the switched capacitor regulator
Input Voltage. Recommended V
Flying Capacitor 1: Positive Terminal
Flying Capacitor 1: Negative Terminal
Output Voltage
Package Mark ID
OUT
L162B
L162B
L166B
L166B
= low voltage. (See Order Information for available voltage
2
Non-Pullback LLP
Package
SDA10A
IN
Description
operating range: 2.7V to 5.5V
SEL
is high, V
Supplied as:
1000 Units, Tape and Reel
4500 Units, Tape and Reel
1000 Units, Tape and Reel
4500 Units, Tape and Reel
OUT
= high voltage. If V
20126002
SEL