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부품번호 | MIC5164 기능 |
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기능 | Dual Regulator Controller | ||
제조업체 | Micrel Semiconductor | ||
로고 | |||
전체 23 페이지수
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
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 1.5kΩ in 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
4페이지 Micrel, Inc.
Functional Diagram
MIC5164
Figure 2. MIC5164 Block Diagram
June 2010
7 M9999-061510
7페이지 | |||
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다운로드 | [ MIC5164.PDF 데이터시트 ] |
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구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
MIC5162 | Dual Regulator Controller | Micrel Semiconductor |
MIC5162BMM | Dual Regulator Controller | Micrel Semiconductor |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |