Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.NET

X  

Preview PDF HTML

SC2446 Datasheet(PDF) 8 Page - Semtech Corporation

Part # SC2446
Description  Dual-Phase Single or Two Output Synchronous Step-Down Controllers
PDF  38 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC2446 Datasheet(HTML) 8 Page - Semtech Corporation

Back Button SC2446 Datasheet HTML 4Page - Semtech Corporation SC2446 Datasheet HTML 5Page - Semtech Corporation SC2446 Datasheet HTML 6Page - Semtech Corporation SC2446 Datasheet HTML 7Page - Semtech Corporation SC2446 Datasheet HTML 8Page - Semtech Corporation SC2446 Datasheet HTML 9Page - Semtech Corporation SC2446 Datasheet HTML 10Page - Semtech Corporation SC2446 Datasheet HTML 11Page - Semtech Corporation SC2446 Datasheet HTML 12Page - Semtech Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 8 / 38 page
background image
8
 2004 Semtech Corp.
www.semtech.com
POWER MANAGEMENT
SC2446
Block Diagram
Figure 3. SC2446 Block Diagram (Channel 1 PWM Control Only)
SYNC
OSCILLATOR
EA1
SLOPE
COMP
+
110mV
ILIM+
CLK2
R
Q
S
OL
Soft-Start And
Overload
Hiccup
Control
UVLO
4.3/4.5V
Non-Overlapping
Conduction
Control
PWM
ROSC
IN1-
REF/IN1+
CS1+
CS1-
CLK1
-
-
+
REFERENCE
0.5V
+
ILIM-
ISEN
+
-
75mV
OCN
COMP2
IN2-
REFIN/IN2+
REFOUT
AGND
EA2
Σ
DSBL
AVCC
BST1
GDH1
PVCC
GDL1
PGND
SS1/EN1
VIN2
VPN2
COMP1
+
-
-
+
VPN1
7
23
25
26
27
22
9
10
12
28
16
18
17
24
2
8
4
5
3
6
1
11
GDH2
20
GDL2
21
+
-
UVLO
-
-
+
+
+
0.72 VREFOUT
0.75 VREF
Figure 4. Soft-Start and Overload Hiccup Control Circuit
OL
0.5V/3.2V
S
Q
R
-
0.9V/1.2V
DSBL
2µΑ
3.4µΑ
IN-
OCN
SS/EN
UVLO
/ 0.72(VREFOUT)
+
0.75(VREF)



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38


Datasheet Download

Go To PDF Page


Link URL



Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link to Datasheet    |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com