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參數(shù)資料
| 型號： | MIC2172BN |
| 廠商： | MICREL INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| 中文描述： | 3.5 A SWITCHING REGULATOR, 115 kHz SWITCHING FREQ-MAX, PDIP8 |
| 封裝： | PLASTIC, DIP-8 |
| 文件頁數(shù)： | 15/20頁 |
| 文件大?。?/td> | 906K |
| 代理商： | MIC2172BN |
Micrel
MIC2172/3172
April 2006
4
M9999-041806
(408) 955-1690
Absolute Maximum Ratings MIC2172
Input Voltage.................................................................. 40V
Switch Voltage ............................................................... 65V
Sync Current............................................................... 50mA
Feedback Voltage (Transient, 1ms) ............................
±15V
Operating Temperature Range
8-pin PDIP .................................................–40 to +85
°C
8-pin SOIC ................................................–40 to +85
°C
Junction Temperature................................–55
°C to +150°C
Thermal Resistance
θ
JA 8-pin PDIP ................................................. 130°C/W
θ
JA 8-pin SOIC................................................. 120
°C/W
Storage Temperature ................................–65
°C to +150°C
Soldering (10 sec.) ...................................................+300
°C
Electrical Characteristics MIC2172
Note 1, 3. Unless otherwise specified, VIN = 5V.
Parameter
Condition
Min
Typ
Max
Units
Reference Section
Pin 2 tied to pin 3
Feedback Voltage (VFB)
1.220
1.214
1.240
1.264
1.274
V
Feedback Voltage Line
Regulation
3V
≤ VIN ≤ 40V
0.03
%/V
Feedback Bias Current
(IFB)
310
750
1100
nA
Error Amplifier Section
Transconductance
(
ICOMP/VFB)
ICOMP = ±25A
3.0
2.4
3.9
6.0
7.0
A/mV
Voltage Gain
(
VCOMP/VFB)
0.9V
≤ VCOMP ≤ 1.4V
500
800
2000
V/V
Output Current
VCOMP = 1.5V
125
100
175
350
400
A
Output Swing
High Clamp, VFB = 1V
Low Clamp, VFB = 1.5V
1.8
0.25
2.1
0.35
2.3
0.52
V
Compensation Pin
Threshold
Duty Cycle = 0
0.8
0.6
0.9
1.08
1.25
V
Output Switch Section
ON Resistance
ISW = 1A, VFB = 0.8V
0.76
1
1.1
Current Limit
Duty Cycle = 50%, TJ ≥ 25°C
Duty Cycle = 50%, TJ < 25°C
Duty Cycle = 80%, Note 2
1.25
1
3
3.5
2.5
A
Breakdown Voltage (BV)
3V
≤ VIN ≤ 40V
ISW = 5mA
65
75
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, 1.5k in series with 100pF.
4. Specification for packaged product only.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MIC2172YM | 功能描述:直流/直流開關調節(jié)器 1.25A 100kHz Switching Regulator (Lead Free) RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| MIC2172YM TR | 功能描述:直流/直流開關調節(jié)器 1.25A 100kHz Switching Regulator (Lead Free) RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| MIC2172YMTR | 制造商:Micrel 功能描述:Current Mode PWM Controller 65V 1.25A |
| MIC2172YM-TR | 制造商:Micrel Inc 功能描述: |
| MIC2172YN | 功能描述:直流/直流開關調節(jié)器 2.5A 100kHz Switching Regulator (Lead Free) RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
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