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SC2616MLTR Datasheet

  • SC2616MLTR

  • Complete DDR Power Solution

  • 17頁

  • SEMTECH   SEMTECH

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Complete DDR Power Solution
POWER MANAGEMENT
Description
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.
SC2616
Features
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
Applications
Power solution for DDR memory per ACPI
motherboard specification
High speed data line termination
Memory cards
Typical Application Circuit
5V
12V
10uF
5V STBY
0.1uF
Suspend to RAM
Suspend to disk
S3
S5
16
4
11
10
18
17
0.1uF
12
3
2
0.1uF
Cin
10k 10k
U4 SC2616
12VCC
5VSBY
SLP_S3
SLP_S5
SS/EN
COMP
HSINKPAD
AGND
LGND
VTTSNS
5VCC
TG
BG
PGND
VDDQSTBY
VDDQIN
FB
VTT
VTT
1uF
9
15
14
13
7
8
1
6
5
0.1uF
VTT
L
0.1uF
Cout
VDDQ
19
Revision 3, March 2003
1
www.semtech.com

SC2616MLTR 產(chǎn)品屬性

  • 0現(xiàn)貨

  • 停產(chǎn)

  • -

  • 卷帶（TR）

  • 停產(chǎn)

  • 轉(zhuǎn)換器，DDR

  • 4.5V ~ 14V

  • 2

  • 1.25V

  • 0°C ~ 70°C（TA）

  • 表面貼裝型

  • 18-VFDFN 裸露焊盤

  • 18-MLP（6x5）

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