KT6008-1A升压型DC-DC芯片
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KT6008
High Efficiency 1MHz, 2A Step Up Regulator Preliminary Specification
General Description
TheKT6008 SY7208 is a high efficiency, with an integrated NMOSFET current-mode and fixed frequency boost converter. The KT6008 SY7208 integrated a very low Rds-on of NMOSFTET and feedback voltage to reduce power loss and achieve high efficiency. 1MHz operate frequency and internal compensation network minimizes as few external component counts and small L and C value. SOT23-6 package provides the best solution for PCB space saving and total BOM cost.
Block Diagram
KT6008
KT6008
Absolute Maximum Ratings (Note 1)
LX, IN, EN ---------------------------------------------------------------------------------------------------------- 26V All other pins-------------------------- ------------------------------------------------------------------------------ 6V Power Dissipation, PD @ TA = 25°C SOT23-6 ----------------------------------------------------------------- 0.6W Package Thermal Resistance (Note 2) θ JA -------------------------------------------------------------------------------------------------------- 170°C/W θ JC -------------------------------------------------------------------------------------------------------- 130°C/W Junction Temperature Range ------------------------------------------------------------------------------------- 125°C Lead Temperature (Soldering, 10 sec.) ------------------------------------------------------------------------- 260°C Storage Temperature Range ------------------------------------------------------------------------------------- 65°C to 150°C ESD Susceptibility (Note 2) HBM (Human Body Mode) ---------------------------------------------------------------------------------------2kV MM (Machine Mode) ---------------------------------------------------------------------------------------------- 200V Dynamic LX voltage in 50ns duration --------------------------------------------------------------------- IN+3V to GND-4V
Symbol VIN IQ ISHDN Rds(on) ILIM1 Fsw VREF VIN,UVLO UVLO,HYS TSD VENH VENL IEN
Test Conditions VFB=0.66V EN=0
Min 1.0
Typ 100 1 150
Biblioteka Baidu
Max 25 5
Unit V µA µA mΩ
2 0.8 0.588 1 0.6
2.6 1.2 0.612 1.0 0.1 150
A MHz V V V °C V V nA
1.0 0 0.4 100
Note 1: Stresses listed as the above “Absolute Maximum Ratings” may cause permanent damage to the device. These are for stress ratings. Functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may remain possibility to affect device reliability. Note 2: θ JA is measured in the natural convection at TA = 25°C on a low effective single layer thermal conductivity test board of JEDEC 51-3 thermal measurement standard. Test condition: Device mounted on 2” x 2” FR-4 substrate PCB, 2oz copper, with minimum recommended pad on top layer and thermal vias to bottom layer ground plane. Note 3: The device is not guaranteed to function outside its operating conditions. Note 4: IC can start up in 1.0V.
Recommended Operating Conditions (Note 3)
Input Voltage Supply ------------------- --------------------------------------------------------------------------- 3V to 25V Junction Temperature Range ------------------------------------------------------------------------------------- -40°C to 125°C Ambient Temperature Range ------------------------------------------------------------------------------------- -40°C to 85°C
Ordering Information
KT6008 □(□□)
Applications
E:SOT-23-6 P:Green
• • • •
White LED Display Backlighting Cell Phone and Smart Phone PDA, PMP, MP3 Digital Camera
KT6008
Typical Performance Characteristics
KT6008
Output Ripple
Features
• • • • • • • • • • •
Wide input range: 3-25V bias input, 25Vout max 1MHz switching frequency Low RDS(ON): 150mΩ Up to 90% efficiency Under-Voltage lockout Protection Over-Temperature Protection Internal Soft Start 1uA Shutdown current RoHS Compliant and Halogen Free Accurate Reference: 0.6VREF Compact package: SOT23-6
Typical Applications
Figure 1. Schematic Diagram
Figure 2. Efficiency vs Load Current
KT6008
Pinout (top view)
(SOT23-6)
Top Mark: CAxyz (Device code: CA, x=year code, y=week code, z= lot number code Pin Name IN GND LX FB EN NC SOT23-6 5 2 1 3 4 6 Pin Description Power Input pin. Ground pin Inductor node. Connect an inductor between IN pin and LX pin. Feedback pin. Connect a resistor R1 between VOUT and FB, and a resistor R2 between FB and GND to program the output voltage: VOUT=0.6V*(R1/R2+1). Enable control. High to turn on the part. Don’t leave it floated. No connection.
KT6008
Electrical Characteristics
(VIN = 5V, VOUT=12V, IOUT=100mA, TA = 25°C unless otherwise specified)
Parameter Input Voltage Range Quiescent Current Shutdown Current Low Side Main FET RON Main FET Current Limit Switching Frequency Feedback Reference Voltage IN UVLO Rising Threshold UVLO Hysteresis Thermal Shutdown Temperature EN Rising Threshold EN Falling Threshold EN Pin Input Current
High Efficiency 1MHz, 2A Step Up Regulator Preliminary Specification
General Description
TheKT6008 SY7208 is a high efficiency, with an integrated NMOSFET current-mode and fixed frequency boost converter. The KT6008 SY7208 integrated a very low Rds-on of NMOSFTET and feedback voltage to reduce power loss and achieve high efficiency. 1MHz operate frequency and internal compensation network minimizes as few external component counts and small L and C value. SOT23-6 package provides the best solution for PCB space saving and total BOM cost.
Block Diagram
KT6008
KT6008
Absolute Maximum Ratings (Note 1)
LX, IN, EN ---------------------------------------------------------------------------------------------------------- 26V All other pins-------------------------- ------------------------------------------------------------------------------ 6V Power Dissipation, PD @ TA = 25°C SOT23-6 ----------------------------------------------------------------- 0.6W Package Thermal Resistance (Note 2) θ JA -------------------------------------------------------------------------------------------------------- 170°C/W θ JC -------------------------------------------------------------------------------------------------------- 130°C/W Junction Temperature Range ------------------------------------------------------------------------------------- 125°C Lead Temperature (Soldering, 10 sec.) ------------------------------------------------------------------------- 260°C Storage Temperature Range ------------------------------------------------------------------------------------- 65°C to 150°C ESD Susceptibility (Note 2) HBM (Human Body Mode) ---------------------------------------------------------------------------------------2kV MM (Machine Mode) ---------------------------------------------------------------------------------------------- 200V Dynamic LX voltage in 50ns duration --------------------------------------------------------------------- IN+3V to GND-4V
Symbol VIN IQ ISHDN Rds(on) ILIM1 Fsw VREF VIN,UVLO UVLO,HYS TSD VENH VENL IEN
Test Conditions VFB=0.66V EN=0
Min 1.0
Typ 100 1 150
Biblioteka Baidu
Max 25 5
Unit V µA µA mΩ
2 0.8 0.588 1 0.6
2.6 1.2 0.612 1.0 0.1 150
A MHz V V V °C V V nA
1.0 0 0.4 100
Note 1: Stresses listed as the above “Absolute Maximum Ratings” may cause permanent damage to the device. These are for stress ratings. Functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may remain possibility to affect device reliability. Note 2: θ JA is measured in the natural convection at TA = 25°C on a low effective single layer thermal conductivity test board of JEDEC 51-3 thermal measurement standard. Test condition: Device mounted on 2” x 2” FR-4 substrate PCB, 2oz copper, with minimum recommended pad on top layer and thermal vias to bottom layer ground plane. Note 3: The device is not guaranteed to function outside its operating conditions. Note 4: IC can start up in 1.0V.
Recommended Operating Conditions (Note 3)
Input Voltage Supply ------------------- --------------------------------------------------------------------------- 3V to 25V Junction Temperature Range ------------------------------------------------------------------------------------- -40°C to 125°C Ambient Temperature Range ------------------------------------------------------------------------------------- -40°C to 85°C
Ordering Information
KT6008 □(□□)
Applications
E:SOT-23-6 P:Green
• • • •
White LED Display Backlighting Cell Phone and Smart Phone PDA, PMP, MP3 Digital Camera
KT6008
Typical Performance Characteristics
KT6008
Output Ripple
Features
• • • • • • • • • • •
Wide input range: 3-25V bias input, 25Vout max 1MHz switching frequency Low RDS(ON): 150mΩ Up to 90% efficiency Under-Voltage lockout Protection Over-Temperature Protection Internal Soft Start 1uA Shutdown current RoHS Compliant and Halogen Free Accurate Reference: 0.6VREF Compact package: SOT23-6
Typical Applications
Figure 1. Schematic Diagram
Figure 2. Efficiency vs Load Current
KT6008
Pinout (top view)
(SOT23-6)
Top Mark: CAxyz (Device code: CA, x=year code, y=week code, z= lot number code Pin Name IN GND LX FB EN NC SOT23-6 5 2 1 3 4 6 Pin Description Power Input pin. Ground pin Inductor node. Connect an inductor between IN pin and LX pin. Feedback pin. Connect a resistor R1 between VOUT and FB, and a resistor R2 between FB and GND to program the output voltage: VOUT=0.6V*(R1/R2+1). Enable control. High to turn on the part. Don’t leave it floated. No connection.
KT6008
Electrical Characteristics
(VIN = 5V, VOUT=12V, IOUT=100mA, TA = 25°C unless otherwise specified)
Parameter Input Voltage Range Quiescent Current Shutdown Current Low Side Main FET RON Main FET Current Limit Switching Frequency Feedback Reference Voltage IN UVLO Rising Threshold UVLO Hysteresis Thermal Shutdown Temperature EN Rising Threshold EN Falling Threshold EN Pin Input Current