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MIC5164 데이터시트 PDF




Micrel Semiconductor에서 제조한 전자 부품 MIC5164은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


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부품번호 MIC5164 기능
기능 Dual Regulator Controller
제조업체 Micrel Semiconductor
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MIC5164 데이터시트, 핀배열, 회로
MIC5164
Dual Regulator Controller for DDR3
GDDR3/4/5 Memory and High-Speed
Bus Termination
General Description
Features
The MIC5164 is a dual regulator controller designed for
high speed bus termination. It offers a simple, low-cost
JEDEC-compliant solution for terminating high-speed, low-
voltage digital buses (i.e. DDR, DDR2, DDR3, SCSI, GTL,
SSTL, HSTL, LV-TTL, Rambus, LV-PECL, LV-ECL, etc)
with a Power Good (PG) signal.
The MIC5164 controls two external N-Channel MOSFETs
to form two separate regulators. It operates by switching
between either the high-side MOSFET or the low-side
MOSFET depending on whether the current is being
sourced to the load or sunk by the regulator.
Designed to provide a universal solution for bus
termination regardless of input voltage, output voltage, or
load current, the desired MIC5164 output voltage can be
programmed by forcing the reference voltage externally to
the desired voltage.
The MIC5164 operates from an input of 1.35V to 6V, with
a second bias supply input required for operation. It is
available in the tiny MSOP-10 package with an operating
junction temperature range of 40°C to +125°C.
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
Input voltage range: 1.35V to 6V
Up to 7A VTT Current
Tracking programmable output
Power Good (PG) signal
Wide bandwidth
Logic controlled enable input
Requires minimal external components
DDR, DDR2, DDR3, memory termination
• −40°C < TJ < +125°C
JEDEC-compliant bus termination for SCSI, GTL, SSTL,
HSTL, LV-TTL, Rambus, LV-PECL, LV-ECL, etc
Tiny MSOP-10 package
Applications
Desktop computers
Notebook computers
Communication systems
Video cards
DDR/DDR2/DDR3 memory termination
____________________________________________________________________________________________________________
Typical Application
Typical SSTL-2 Application
(Two MOSFETs Support a 3.5A Application)
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
June 2010
M9999-061510




MIC5164 pdf, 반도체, 판매, 대치품
Micrel, Inc.
MIC5164
Electrical Characteristics(4) (Continued)
TA = 25°C = VDDQ = 1.5V; VCC = 5V, VEN = VCC, bold values indicate –40°C TJ +125°C, unless otherwise specified.
See test circuit 1 for test circuit configuration.
Parameter
Condition
Min. Typ. Max. Units
Power Good Output
Power Good Deglitch (Note 9)
Time after VFB voltage has gone outside of PG
window
5 10 μs
Driver
High-Side Gate Drive Voltage
Low-Side Gate Drive Voltage
High-Side MOSFET Fully ON
High-Side MOSFET Fully OFF
Low-Side MOSFET Fully ON
Low-Side MOSFET Fully OFF
4.8 4.97
V
0.03 0.2 V
4.8 4.97
V
0.03 0.2 V
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. The device is not guaranteed to function outside its operating rating.
3. Devices are ESD sensitive. Handling precautions recommended. Human body model 1.5kin series with 100pF.
4. Specification for packaged product only.
5. The VTT voltage accuracy is measured as a delta voltage from the reference output (VTT - VREF).
6. Shutdown current is measured only on the VCC pin. The VDDQ pin will always draw a minimum amount of current when voltage is applied.
7. Start-up time is defined as the amount of time from EN = VCC to VHD = 90% of VCC.
8. Power Good startup delay is defined as the amount of time from EN =VCC and VFB is within ±10% of ½VDDQ to VPG = 90% of VCC (VFB = VREF),
during startup (VFB is the sense of VTT).
9. Power Good deglitch is defined as the amount of time from the voltage at FB node going out of PG window (with 10mV overdrive voltage) to PG =
LOW.
June 2010
4 M9999-061510

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MIC5164 전자부품, 판매, 대치품
Micrel, Inc.
Functional Diagram
MIC5164
Figure 2. MIC5164 Block Diagram
June 2010
7 M9999-061510

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