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參數(shù)資料
| 型號： | EL7560CM |
| 廠商： | INTERSIL CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Programmable CPU Power Supply Unit |
| 中文描述： | 16 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO28 |
| 封裝： | SOIC-28 |
| 文件頁數(shù)： | 1/7頁 |
| 文件大小： | 371K |
| 代理商： | EL7560CM |
1
FN7294
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2003. All Rights Reserved. Elantec is a registered trademark of Elantec Semiconductor, Inc.
All other trademarks mentioned are the property of their respective owners.
EL7560
Programmable CPU Power Supply Unit
The EL7560 is the simplest, most cost
effective method for powering modern
high power CPUs which require a user
adjustable output voltage. Although it is particularly designed
to function with next generation CPUs, its simple design can
provide low cost solutions for any 5V to 3V application.
The circuit uses on chip resistorless current sensing for high
efficiency, stable current mode control. An on chip
temperature sensor resets the OT pin. The OT pin can be
tied directly to the OUTEN pin for automatic overtemperature
shutdown. The user can adjust the oscillator frequency as
well as the slope compensation.
The output voltage is adjustable using a 4-bit parallel
interface. A power OK signal "PWRGD' pulls high when the
FB pin is within -7% of the programmed value.
Pinout
EL7560
(28-PIN SOIC)
TOP VIEW
Features
3.3V @ 12.4amps continuous
Internal FETs
>90% efficiency
Synchronous switching
4-bit digitally adjustable output voltage
User adjustable slope compensation
Internal soft start
Over temperature indicator
Low current sleep mode
Low parts count
Pulse by pulse current limiting
High efficiency at light load
Operates up to 1MHz
1% output accuracy
Sync function
Power good signal
Applications
PC motherboards
Local high power CPU supplies
1
2
3
4
16
15
14
13
5
6
7
12
11
9
8
10
20
19
18
17
24
23
22
21
28
27
26
25
FB
CP-
CREF
CP+
CSLOPE
C2V
COSC
VSS
VDD
VHI
VIN
LX
VSSP
LX
VIN
LX
VSSP
LX
VSSP
LX
VID0
TEST
VID1
PWRGD
VID2
OT
VID3
OUTEN
+10V
D2
D1
1μF
C11
R1
100
C7
220p
+5V
4mF
C10
30
68p
D3
R3
1K
2.5μH
L1
VOUT
.1μF
C6
4.7μF
C8
5V
R2
10K
+2V - 3.5V
1μF
C5
PGND
L2
1.5μH
5V
C1
OUTPUT
VOLTAGE*
SELECT
C9
2mF
.1μF
C4
ACND
10
.1μF
* See VID Table on page 3
Note:
AGND and PGND should be connected at C10
D3 is 1.235V reference.
Ordering Information
PART
NUMBER
TEMP. RANGE
PACKAGE
PKG. NO.
EL7560CM
-40°C to +85°C
28-Pin SOIC
MDP0027
Data Sheet
August 21, 1998
NO REOBSOLETE PRODUCT
contact our Technical Support Center at
1-888-INTERSIL or www.intersil.com/tsc
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