SC1210 View Datasheet(PDF) - Semtech Corporation
Part Name
Description
MFG CO.
'SC1210' PDF : 9 Pages View PDF
POWER MANAGEMENT
Pin Configuration
Top View
DRN 1
8
TG 2
7
BST 3
6
CO 4
5
PGND
BG
VREG
VIN
SC1210
Ordering Information
Device (1)
Package
Temp Range (TJ)
SC1210STR
SO-8
0° to 125°C
Note:
(1) Only available in tape and reel packaging. A reel
contains 2500 devices.
(SO-8)
Pin Descriptions
Pin # Pin Name
Pin Function
1
DRN The drain node of the low-side MOSFET (or switching node) of the synchronous buck converter.
2
TG
Output gate drive for the switching (top) MOSFET.
3
BST
Bootstrap pin. A capacitor is connected between BST and DRN pins to develop the floating
bootstrap voltage for the high-side MOSFET. The capacitor value is typically 1µF (ceramic).
4
CO
Logic level PWM input signal to the SC1210 supplied by external controller. An internal 50kohm
resistor is connected from this pin to PGND.
5
VIN
Supply power for LDO. Connect to input power rail of the converter.
6
VREG LDO output. Decouple with 1µF to 4.7µF (ceramic) with lead length no more than 0.2" (5mm).
7
BG
Output gate drive for the synchronous (bottom) MOSFET.
8
PGND Ground. Keep this pin close to the synchronous MOSFETs source.
2003 Semtech Corp.
5
www.semtech.com
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