参数资料
| 型号： | MIC2150YML TR |
| 厂商： | Micrel Inc |
| 文件页数： | 4/27页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM 24MLF |
| 标准包装： | 1 |
| PWM 型： | 电流/电压模式 |
| 输出数： | 2 |
| 频率 - 最大： | 550kHz |
| 占空比： | 80% |
| 电源电压： | 4.5 V ~ 14.5 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： | 24-VFQFN 裸露焊盘，24-MLF? |
| 包装： | 标准包装 |
| 其它名称： | 576-3746-6 |
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Micrel, Inc.
Absolute Maximum Ratings (1)
Supply Voltage (V IN ) ........................................ –0.3V to 15V
Bootstrap Pin Voltage (BST & HSD) ....................... V IN + 6V
FB, COMP, SS, V DD , LSD & A VDD .................... –0.3V to 6V
CS, SW & EN .................................................. –0.3V to 15V
Power Good (P GOOD ) ........................................ AV DD + 0.3V
Storage Temperature (T S )......................... –65 ° C to +150 ° C
Lead Temperature (Soldering 10 seconds) ............... 260°C
ESD Rating (3) .............HBM = 2kV, MM = 200V, CDM = 2kV
MIC2150
Operating Ratings (2)
Supply Voltage (V IN )................................... +4.5V to +14.5V
Output Voltage Range................................ 0.7V to 0.83×V IN
Junction Temperature Range ............. –40 ° C ≤ T J ≤ +125 ° C
Package Thermal Resistance
MLF ? ( θ JA )..........................................................60 ° C/W
MLF ? ( θ JC )............................................................6 ° C/W
Electrical Characteristics (4)
T J = 25°C; V EN = V IN = 12V; unless otherwise specified. Bold values indicate –40 ° C ≤ T J ≤ +125 ° C
Parameter
Condition
Min
Typ
Max
Units
V IN , V EN , V DD Supply
Total Supply Current,
PWM mode supply
V FB = 0.7V (both O/Ps)
(Outputs switching but excluding external MOSFET gate current.)
4.2
10
mA
current
Shutdown Current
V EN = 0V
50
100
μ A
V IN UVLO Start Voltage
V IN UVLO Stop Voltage
V IN rising
V IN falling
1.5
1.5
2.03
2
2.4
2.4
V
V
V IN UVLO Hysteresis
30
mV
V DD UVLO Start Voltage
V DD UVLO Stop Voltage
V DD rising
V DD falling
3.0
2.8
3.3
3.1
3.6
3.4
V
V
V IN UVLO Hysteresis
200
mV
V EN Threshold 1
V EN Threshold 2
V EN Hysteresis
(each threshold)
0.8
1.7
1
2
30
1.2
2.3
V
V
mV
Internal Bias Voltages
(V DD )
V DD Load Current
IV DD = -50mA
V IN = 6V to 14.5V
4.5
5
5.5
75
V
mA
Oscillator / PWM Section
V IN = 5.5V
50
mA
PWM Frequency
See design note
(Internal Oscillator = 2X PWM frequency)
MIC2150
MIC2151
450
270
500
300
550
330
kHz
kHz
Maximum Duty Cycle
(Each Channel)
MIC2150
MIC2151
80
83
%
%
Minimum On-Time
(5,6)
(Each Channel)
30
50
ns
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.
5. Minimum on-time before automatic cycle skipping begins. See applications section.
6. Guaranteed by design.
August 2009
4
M9999-082809-A
(408) 944-0800
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| MIC2151 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:2-Phase Dual Output PWM Synchronous Buck Control IC |
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