SC1454-18IMSTR View Datasheet(PDF) - Semtech Corporation
Part Name
Description
MFG CO.
'SC1454-18IMSTR' PDF : 14 Pages View PDF
SC1454
POWER MANAGEMENT
Pin Configuration
(Top View)
Voltage Options
Replace X in the part number (SC1454XIMS) by the
letter shown below for the corresponding voltage option:
X
A
B
C
MSOP-8
D
Ordering Information
E
Part Numbers
Package
F
SC1454XIMSTR(1)(2)
MSOP-8
G
Notes:
H
(1) Where X denotes voltage options - see Voltage
Options table.
J
(2) Only available in tape and reel packaging. A reel
K
contains 2500 devices.
VOUTA (V)
1.8
2.5
2.8
3.0
3.3
3.0
3.0
3.0
3.3
3.3
VOUTB (V)
1.8
2.5
2.8
3.0
3.3
2.5
1.8
2.8
2.5
2.8
Pin Descriptions
Pin #
1
2
3
4
Pin Name
OUTA
OUTB
GND
SETA
5
ENB
6
BYP
7
ENA
8
IN
Pin Function
Regulator A output.
Regulator B output.
Ground pin.
Connecting this pin to ground results in the internally preset value for VOUT.
Connecting to an external resistor divider changes VOUTA to:
VOUTA
= 1.250 • 1 +
R1
R2
Active high enable pin for output B. CMOS compatible input. Connect to IN if not
being used.
Bypass pin for bandgap reference. Connect a 10nF capacitor, CBYP, between
this pin and ground for low noise operation.
Active high enable pin for output A. CMOS compatible input. Connect to IN if not
being used.
Input pin for both regulators.
ã 2000 Semtech Corp.
4
www.semtech.com
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