参数资料
| 型号： | MIC2174-1YMM TR |
| 厂商： | Micrel Inc |
| 文件页数： | 4/27页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM 10-MSOP |
| 产品培训模块： | MIC2124 Synchronous Current Mode DC-DC Buck Controller |
| 标准包装： | 2,500 |
| 系列： | Hyper Speed Control™ |
| PWM 型： | 混合物 |
| 输出数： | 1 |
| 频率 - 最大： | 375kHz |
| 占空比： | 87% |
| 电源电压： | 3 V ~ 40 V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 包装： | 带卷 (TR) |
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Micrel, Inc.
Absolute Maximum Ratings (1)
IN, FB, EN to GND .......................................... ? 0.3V to +6V
BST to LX ........................................................ ? 0.3V to +6V
BST to GND .................................................. ? 0.3V to +46V
DH to LX............................................ ? 0.3V to (V BST + 0.3V)
DL, COMP to GND.............................. ? 0.3V to (V IN + 0.3V)
HSD to GND.................................................... ? 0.3V to 42V
PGND to GND .............................................. ? 0.3V to +0.3V
Junction Temperature .............................................. +150°C
Storage Temperature (T S )......................... ? 65 ° C to +150 ° C
Lead Temperature (soldering, 10sec)........................ 260°C
MIC2174/MIC2174C
Operating Ratings (2)
Input Voltage (V IN )............................................ 3.0V to 5.5V
Supply Voltage (V HSD ) ....................................... 3.0V to 40V
Junction Temperature (T J ) ........................ ? 40 ° C to +125 ° C
Junction Thermal Resistance
MSOP ( θ JA ) ..................................................130.5 ° C/W
Continuous Power Dissipation (T A = 70°C) .......421mW
(derate 5.6mW/°C above 70°C)
.
Electrical Characteristics (4)
V BST ? V LX = 5V; T A = 25°C, unless noted. Bold values indicate ? 40°C ≤ T J ≤ +125°C.
Parameter
Condition
Min.
Typ.
Max.
Units
General
Operating Input Voltage (V IN ) (5)
HSD Voltage Range (V HSD )
3.0
3.0
5.5
40
V
V
Quiescent Supply Current
Standby Supply Current
Undervoltage Lockout Trip Level
UVLO Hysteresis
(V FB = 1.5V, output switching but excluding external
MOSFET gate current)
V IN = V BST = 5.5V, V HSD = 40V, LX = unconnected, EN =
GND (6)
2.4
1.4
0.8
2.7
50
3.0
2
3
mA
mA
V
mV
DC-DC Controller
Output-Voltage Adjust Range (V OUT )
3.0V ≤ V HSD ≤ 28V
28V < V HSD ≤ 40V
0.8
0.8
5.5
3.6
V
Error Amplifier
FB Regulation Voltage
FB Input Leakage Current
0°C ≤ T J ≤ 85°C (MIC2174)
? 40°C ≤ T J ≤ 125°C (MIC2174)
T J = 25°C (MIC2174C)
V FB = 0.8V (MIC2174)
-1
-2
-3
103
5
130
1
2
3
500
162
%
nA
Current-Limit Threshold
V FB = 0V (MIC2174)
V FB = 0.8V(MIC2174C)
V FB = 0V (MIC2174C)
19
95
15
48
130
48
77
170
80
mV
Notes:
1.
2.
3.
4.
5.
6.
Exceeding the absolute maximum rating may damage the device.
The device is not guaranteed to function outside its operating rating.
Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF.
Specification for packaged product only.
The application is fully functional at low IN (supply of the control section) if the external MOSFETs have enough low voltage V TH .
The current will come only from the internal 100k ? pull-up resistor sitting on the EN Input and tied to IN.
September 2010
4
M9999-091310-C
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| MIC2174C | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Synchronous Buck Controller Featuring Adaptive On-Time Control 40V Input, 300kHz |
| MIC2174C-1YMM | 功能描述:DC/DC 开关控制器 Low Cost 40V Synchronous Buck Controller RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
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| MIC2176-1YMM | 功能描述:DC/DC 开关控制器 76V Synchronous Buck Controller RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
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