|
|
|
부품번호 | MIC5166 기능 |
|
|
기능 | 3A High-Speed Low V DDR Terminator | ||
제조업체 | Micrel Semiconductor | ||
로고 | |||
전체 25 페이지수
MIC5166
3A High-Speed Low VIN DDR Terminator
General Description
The MIC5166 is a 3A, high-speed, linear, low VIN, double
data rate (DDR), memory terminator power supply. The
part is small and requires small output capacitors making it
a tiny overall solution. This allows it to be conveniently
placed close to the DDR memory, minimizing circuit board
layout inductance which may cause excessive voltage
ripple at the DDR memory.
The MIC5166 contains a precision voltage divider network
in order to take in the VDDQ voltage as a reference voltage
and conveniently output the terminator voltage (VTT) at one
half of the VDDQ input voltage.
The MIC5166 is capable of sinking and sourcing up to 3A.
It is stable with only two 10µF ceramic output capacitors.
The part is available in a small 3mm × 3mm MLF®
thermally-enhanced package.
The MIC5166 has a high-side NMOS output stage offering
very-low output impedance, and very-high bandwidth. The
NMOS output stage offers a unique ability to respond very
quickly to sudden load changes such as is required for
DDR memory termination power supply applications.
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
Features
• Operating voltage range:
• VDDQ Supply: 0.9V to 3.6V
• Bias Supply: 2.5V to 5.5V
• High bandwidth – very fast transient response
• Stable with two 10µF ceramic output capacitors
• Two 10µF output capacitors used in most applications
• High output voltage accuracy:
• 0.015% line regulation
• 1.5% load regulation
• Logic level enable input
• Power Good (PG)
• Thermally-enhanced 3mm × 3mm MLF®
• Junction temperature range –40°C to +125°C
Applications
• Desktop computers
• Notebook computers
• Datacom systems
• Servers
• Video cards
_________________________________________________________________________________________________________________________
Typical Application
Ramp Control is a trademark of Micrel, Inc
MLF and MicroLeadFrame are registered trademarks of Amkor Technology, Inc.
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 2012
M9999-060612-A
Micrel, Inc.
MIC5166
Electrical Characteristics(6) (Continued)
VIN = 1.5V, VBIAS = 3.3V, VDDQ = 1.5V, TA = 25°C, unless noted. Bold values indicate –40°C ≤ TJ ≤ +125°C.
Parameter
Condition
Min. Typ.
VREF Output
VREF Voltage Accuracy
Bias Supply Dropout Voltage
Variation from (VDDQ/2), IREF = -10mA to 10mA
−1
Dropout Voltage (VBIAS – VTT)
Dropout Voltage (VBIAS – VTT)
Dropout Voltage (VBIAS – VTT)
Enable Control
IOUT = 100mA
IOUT = 500mA
IOUT = 3.0A
1.15
1.25
1.65
EN Logic High Level
Logic High
1.2
EN Logic Low Level
Logic Low
EN Current
Start-Up Time
Short-Current Protection
VEN = 0.2V
VEN = 1.2V
From EN pin going high to VTT 90% of VREF
1.0
6.0
55
Sourcing Current Limit
VIN = 2.7V, VTT = 0V
3.1 4.9
Sinking Current Limit
Internal FETs
VIN = 2.7V, VTT = VIN
−3.1 −4.9
Top-MOSFET RDS(ON)
Bottom-MOSFET RDS(ON)
Power Good (PG)
Source, IOUT = 3A (VTT to PGND)
Sink, IOUT = -3A (VIN to VTT)
130
130
PG Window
Hysteresis
Threshold % of VTT from VREF
≥90
2
PG Output Low Voltage
PG Leakage Current
Thermal Protection
IPG = 4mA (sinking)
VPG = 5.5V, VSNS = VREF
430
Over-Temperature Shutdown
Over-Temperature Shutdown
Hysteresis
TJ Rising
150
10
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5kΩ in series with 100pF.
3. The device is not guaranteed to function outside its operating rating.
4. If VBIAS ≤ 3.6V, then VIN(MAX) = VBIAS.
5. If VBIAS ≤ 4V, then VDDQ(MAX) = 2 × (VBIAS − 2.2V). If VBIAS > 4V, then VDDQ(MAX) = 3.6V.
6. Specification for packaged product only.
Max.
1
2.2
0.2
7.8
−7.8
190
190
≤110
1.0
Units
%
V
V
V
V
V
µA
µs
A
A
mΩ
mΩ
%
%
mV
μA
°C
°C
June 2012
4 M9999-060612-A
4페이지 Micrel, Inc.
Typical Characteristics (Continued)
VIN Shutdown Current
vs. Temperature
0.5
VIN = 1.5V
0.4
VBIAS =5V
VDDQ = 1.2V
VEN = 0V
0.3
0.2
0.1
0.0
-50 -25 0 25 50 75 100 125
TEMPERATURE (°C)
VIN UVLO Threshold
vs. Temperature
1.0
0.9
RISING
VVBIBAISAS==5.50.V0V
VVDDDQDQ= 1=.21V.2V
VIOVITOUTTTU=TT===00.A006AV.6V
VEN = VBIAS
0.8
0.7
FALLING
0.6
-50 -25 0 25 50 75 100 125
TEMPERATURE (°C)
MIC5166
1.0000
Enable Threshold
vs. Temperature
0.9000
0.8000
RISING
0.7000
0.6000
VIN = 1.5V
VBIAS = 5V
VDDQ = 1.2V
VTT = 0.6V
FALLING
0.5000
-50
-25 0 25 50 75 100
TEMPERATURE (°C)
125
Sourcing Load Regulation
vs. Temperature
1.0%
0.5%
0.0%
-0.5%
-1.0%
-1.5%
-2.0%
-50
VIN = 1.5V
VBIAS = 5V
VDDQ = 1.2V
VTT = 0.6V
IOUT = 0A to 3A
VEN = VBIAS
-25 0 25 50 75 100 125
TEMPERATURE (°C)
1.0%
0.5%
0.0%
-0.5%
Sinking Load Regulation
vs. Temperature
VIN = 1.5V
VBIAS = 5.5V
VDDQ = 1.2V
VTT = 0.6V
IOUT = 0A to -3A
VEN = VBIAS
-1.0%
-1.5%
-2.0%
-50
-25 0 25 50 75 100 125
TEMPERATURE (°C)
VREF/VDDQ Tracking Ratio
vs. Temperature
0.601
0.600
0.599
0.598
VIN = 1.5V
VBIAS = 5V
VDDQ = 1.2V
VTT = 0.6V
IOUT = 0A
VEN = VBIAS
0.597
-50 -25 0 25 50 75 100 125
TEMPERATURE (°C)
0.6010
Output Voltage
vs. Temperature
0.6000
0.5990
0.5980
VIN = 1.5V
VBIAS = 5V
VDDQ = 1.2V
VTT = 0.6V
IOUT = 0A
VEN = VBIAS
0.5970
-50 -25 0 25 50 75 100 125
TEMPERATURE (°C)
Current Limit
vs. Temperature
5.5
VIN = 1.5V
VBIAS = 5V
5.3 VDDQ = 1.2V
SOURCING
VTT = 0.6V
VEN = VBIAS
5.0
SINKING
4.8
4.5
-50
-25 0 25 50 75 100
TEMPERATURE (°C)
125
Enable Pin Current
vs. Temperature
VIN = 1.5V
2 VBIAS = 5V
VDDQ = 1.2V
VEN = VIN
1
0
-50 -25 0 25 50 75 100 125
TEMPERATURE (°C)
June 2012
7 M9999-060612-A
7페이지 | |||
구 성 | 총 25 페이지수 | ||
다운로드 | [ MIC5166.PDF 데이터시트 ] |
당사 플랫폼은 키워드, 제품 이름 또는 부품 번호를 사용하여 검색할 수 있는 |
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 |