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FAN1654 데이터시트 PDF




Fairchild Semiconductor에서 제조한 전자 부품 FAN1654은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

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부품번호 FAN1654 기능
기능 1.5A LDO/ DDR Bus Termination Regulator
제조업체 Fairchild Semiconductor
로고 Fairchild Semiconductor 로고


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FAN1654 데이터시트, 핀배열, 회로
www.fairchildsemi.com
FAN1654
1.5A LDO, DDR Bus Termination Regulator
Features
• Sinks and sources 1A continuous, 1.5A peak
• -40°C to +125°C Operating Range
• Load regulation: (VDDQ/2) ± 40mV
• 5mA VREF buffer tracks VTT
• On-chip thermal limiting
• Power-enhanced eTSSOP™-16 package
• Low Current Shutdown Mode
• Output Short Circuit Protection
Applications
• DDR terminators
Description
The FAN1654 is a low-cost bi-directional LDO specifically
designed for terminating DDR memory bus. It can both sink
and source up to 1A continuous, 1.5A peak, providing
enough current for most DDR applications. Load regulation
meets the JEDEC spec, VTT = (VDDQ/2) ± 40mV.
The FAN1654 includes a buffered reference voltage capable
of supplying up to 5mA current. On-chip thermal limiting
provides protection against a combination of power overload
and ambient temperature that would create an excessive
junction temperature. A shutdown input puts the FAN1654
into a low power mode for laptop computer applications.
The FAN1654 regulator is available in a power-enhanced
eTSSOP™-16 package, and the standard SOIC-14
Block Diagram
VDDQ
VDD
VDD VDD SHDN
VREFOUT
VREFIN
200k
-
+
+
200k
FAN1655
VSSQ
-
VSS VSS VSS
VTTFORCE
VTTFORCE
VTTSENSE
REV. 1.0.5 4/17/02




FAN1654 pdf, 반도체, 판매, 대치품
PRODUCT SPECIFICATION
FAN1654
Absolute Maximum Ratings
Supply Voltage VDD, VDDQ
Junction Temperature, TJ
Storage Temperature
Lead Soldering Temperature, 10 seconds
Power Dissipation, PD
6V
150°C
-65 to 150°C
300°C
1.4W
Recommended Operating Conditions
Parameter
Supply Voltage VDD
Supply Voltage VDDQ
Ambient Operating Temperature
VREFIN
Conditions
Min.
2.3
2.2
-40
1.1
Typ.
2.5
2.5
1.25
Max.
3.6
3.0
125
1.5
Units
V
V
°C
V
Electrical Characteristics
(VDD = VDDQ = 2.5V ± 0.2V, and TA = 25˚C using circuit in Figure 1, unless otherwise noted.)
The • denotes specifications which apply over the specified operating temperature range.
Parameter
VTT Output Voltage
VTT Output Slew Rate
VTT Leakage Current
VTT Current Limit
VREFIN Input Impedance
VREFOUT Output Voltage
VREFOUT Output Current
VREFOUT Leakage Current
SHDN Logic High
SHDN Logic Low
IDD Supply Current
VDDQ Leakage Current
VDD Leakage Current
SHDN Input Current
Over-Temperature Shutdown
Over-Temperature Hysteresis
Conditions
IOUT = 0A, VREFIN = open
VDDQ = 2.3V
VDDQ = 2.5V
VDDQ = 2.7V
IOUT = +1A, VREFIN = open
VDDQ = 2.3V
VDDQ = 2.5V
VDDQ = 2.7V
Cload = 10µF
SHDN = 0V
No load
VREFIN = 1.150V
VREFIN = 1.250V
VREFIN = 1.350V
VDDQ = 2.3V
SHDN = 0V
No load, SHDN = 2.7V
SHDN = 0V
SHDN = 0V
SHDN = 2.7V
Min.
1.135
1.235
1.335
1.110
1.210
1.310
-50
1.145
1.245
1.345
-5
-10
1.667
Typ.
1.150
1.250
1.350
1.150
1.250
1.350
0.1
±2
100
1.150
1.250
1.350
3
6
3
50
155
30
Max. Units
1.165
1.265
1.365
V
V
V
1.190
1.290
1.390
V
V
V
V/µsec
50 µA
A
K
1.155
1.255
1.355
5
10
0.800
10
10
50
75
V
V
V
mA
µA
V
V
mA
µA
µA
µA
°C
°C
4 REV. 1.0.5 4/17/02

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FAN1654 전자부품, 판매, 대치품
PRODUCT SPECIFICATION
Ordering Information
Product Number
FAN1654MTF
FAN1654MTFX
FAN1654M
FAN1654MX
Package
eTSSOP-16
eTSSOP-16 in tape and reel
SOIC-14
SOIC-14 in tape and reel
FAN1654
LIFE SUPPORT POLICY
FAIRCHILDS PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES
OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR
CORPORATION. As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the body, or
(b) support or sustain life, and (c) whose failure to perform
when properly used in accordance with instructions for use
provided in the labeling, can be reasonably expected to
result in a significant injury of the user.
2. A critical component in any component of a life support
device or system whose failure to perform can be
reasonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
www.fairchildsemi.com
4/17/02 0.0m 004
Stock#DS30004854
2002 Fairchild Semiconductor Corporation

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