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參數資料
| 型號： | SC2616 |
| 廠商： | Semtech Corporation |
| 英文描述： | Complete DDR Power Solution |
| 中文描述： | 完整的DDR電源解決方案 |
| 文件頁數： | 1/17頁 |
| 文件大小： | 414K |
| 代理商： | SC2616 |
POWER MANAGEMENT
Description
1
www.semtech.com
SC2616
Complete DDR Power Solution
Features
Applications
Power solution for DDR memory per ACPI
motherboard specification
High speed data line termination
Memory cards
Revision 3, March 2003
Typical Application Circuit
The SC2616 is a fully integrated DDR power solution pro-
viding power for the VDDQ and the VTT rails. The SC2616
also completely adheres to the ACPI sleep state power
requirements. A synchronous buck controller provides
the high current of the VDDQ at high efficiency, while a
linear sink/source regulator provides the termination
voltage with 2 Amp Source/Sink capability. This approach
makes the best trade-off between cost and perfor-
mance. Additional logic and UVLOs complete the func-
tionality of this single chip DDR power solution in compli-
ance with S3 and S5 motherboard signals.
The SC2616 is capable of sourcing up to 20A at the
switcher output, and 2A source/sink at the VTT output.
The MLP package provides excellent thermal impedance
while keeping small footprint. VDDQ current limit as well
as 3 independent thermal shutdown circuits assure safe
operation under all fault conditions.
High efficiency (90%) switcher for
VDDQ supplies
20 Amps
High current gate drives
Single chip solution complies fully with ACPI power
sequencing specifications
Internal S3 state LDO
supplies high standby
VDDQ current (0.65Amp Min.)
ACPI sleep state controlled
2 Amp VTT source/sink capability
UVLO on 5V and 12V
Independent thermal shutdown for VDDQ and VTT
Fast transient response
18 pin MLP package
0.1uF
10k
VTT
1uF
10k
12V
0.1uF
S5
L
Suspend to RAM
U4 SC2616
1
8
6
7
4
3
2
5
9
18
17
16
15
14
13
12
11
10
1
FB
VDDQIN
VTT
VDDQSTBY
5VSBY
LGND
VTTSNS
VTT
5VCC
SS/EN
COMP
12VCC
TG
BG
PGND
AGND
SLP_S3
SLP_S5
H
Suspend to disk
5V STBY
S3
0.1uF
10uF
Cout
Cin
0.1uF
VDDQ
0.1uF
5V
相關PDF資料 |
PDF描述 |
|---|---|
| SC2616MLTR | Complete DDR Power Solution |
| SC2618 | Miniature PWM Controller for Buck Regulator |
| SC2618SKTRT | Miniature PWM Controller for Buck Regulator |
| SC2620 | Dual 2A, 30V Step-down Regulator with Programmable Frequency up to 1.4MHz |
| SC2620EVB | Dual 2A, 30V Step-down Regulator with Programmable Frequency up to 1.4MHz |
相關代理商/技術參數 |
參數描述 |
|---|---|
| SC2616_03 | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Complete DDR Power Solution |
| SC2616ML.TR | 制造商:Semtech Corporation 功能描述: |
| SC2616ML.TRT | 制造商:SEMTECH 功能描述:I.C. |
| SC2616MLTR | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Complete DDR Power Solution |
| SC2616MLTRT | 制造商:Semtech Corporation 功能描述:DDR Power Solution 18-Pin MLP T/R |
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