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部品番号 MT3608
部品説明 High Efficiency 1.2MHz 2A Step Up Converter
メーカ AEROSEMI
ロゴ AEROSEMI ロゴ 
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MT3608 Datasheet, MT3608 PDF,ピン配置, 機能
AEROSEMI
FEATURES
• Integrated 80mΩ Power MOSFET
• 2V to 24V Input Voltage
• 1.2MHz Fixed Switching Frequency
• Internal 4A Switch Current Limit
• Adjustable Output Voltage
• Internal Compensation
• Up to 28V Output Voltage
• Automatic Pulse Frequency Modulation
Mode at Light Loads
• up to 97% Efficiency
• Available in a 6-Pin SOT23-6 Package
APPLICATIONS
• Battery-Powered Equipment
• Set-Top Boxed
• LCD Bais Supply
• DSL and Cable Modems and Routers
• Networking cards powered from PCI
or PCI express slots
MT3608
High Efficiency 1.2MHz
2A Step Up Converter
GENERAL DESCRIPTION
The MT3608 is a constant frequency, 6-pin SOT23
current mode step-up converter intended for small,
low power applications. The MT3608 switches at
1.2MHz and allows the use of tiny, low cost
capacitors and inductors 2mm or less in height.
Internal soft-start results in small inrush current and
extends battery life.
The MT3608 features automatic shifting to pulse
frequency modulation mode at light loads. The
MT3608 includes under-voltage lockout, current
limiting, and thermal overload protection to prevent
damage in the event of an output overload. The
MT3608 is available in a small 6-pin SOT-23
package.
TYPICAL APPLICATION
Efficiency
Figure 1. Basic Application Circuit
Aerosemi Technology Co., Ltd
Iout (mA)
Figure 2. Efficiency Curve
1

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MT3608 pdf, 電子部品, 半導体, ピン配列
ELECTRICAL CHARACTERISTICS
MT3608
(VIN=VEN=5V, TA = 25°C, unless otherwise noted.)
Parameter
Conditions
MIN TYP MAX unit
Operating Input Voltage
2 24 V
Under Voltage Lockout
1.98 V
Under Voltage Lockout Hysteresis
100 mV
Current (Shutdown)
Quiescent Current (PFM)
Quiescent Current (PWM)
Switching Frequency
VEN= 0V
VFB=0.7VNo switch
VFB=0.5Vswitch
0.1 1 µA
100 200 µA
1.6 2.2 mA
1.2 MHz
Maximum Duty Cycle
EN Input High Voltage
VFB = 0V
90
1.5
%
V
EN Input Low Voltage
0.4 V
FB Voltage
0.588 0.6 0.612
V
FB Input Bias Current
VFB = 0.6V
-50 -10
nA
SW On Resistance (1)
80 150 mΩ
SW Current Limit (1)
VIN= 5V, Duty cycle=50%
4
A
SW Leakage
VSW = 20V
1 μA
Thermal Shutdown
155
Note:
1) Guaranteed by design, not tested.
Aerosemi Technology Co., Ltd
3





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