- TD1728
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- 发布者:凌晔科技
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详细信息
品牌:泰德
封装:TDFN 3x3
批号:18+
数量*:2800000
描述:产品详情:
The TD1728 is a single-phase, constant-on-time, synchronous PWM controller, which drives N-channel MOSFETs. The TD1728 steps down high voltage to generate low-voltage chipset or RAM supplies in notebook computers.
The TD1728 provides excellent transient response and accurate DC voltage output in either PFM or PWM Mode. In Pulse Frequency Mode (PFM), the TD1728 provides very high efficiency over light to heavy loads with loading- modulated switching frequencies. In PWM Mode, the converter works nearly at constant frequency for low-noise requirements.
The TD1728 is equipped with accurate positive current- limit, output under-voltage, and output over-voltage protections, perfect for NB applications. The Power-On- Reset function monitors the voltage on VCC to prevent wrong operation during power-on. The TD1728 has a 1ms digital soft-start and built-in an integrated output discharge method for soft-stop. An internal integrated soft-start ramps up the output voltage with programmable slew rate to reduce the start-up current. A soft-stop function actively discharges the output capacitors with controlled reverse inductor current.
The TD1728 is available in 10pin TDFN 3x3 package.
Features
Adjustable Output Voltage from +0.7V to +5.5V
0.7V Reference Voltage
±1% Accuracy Over-Temperature
Operates from an Input Battery Voltage Range of +1.8V to +32V
Power-On-Reset Monitoring on VCC Pin
Excellent Line and Load Transient Responses
PFM Mode for Increased Light Load Efficiency
Selectable PWM Frequency from 4 Preset Values
Integrated MOSFET Drivers
Integrated Bootstrap Forward P-CH MOSFET
Adjustable Integrated Soft-Start and Soft-Stop
Selectable Forced PWM or Automatic PFM/PWM Mode
Power Good Monitoring
70% Under-Voltage Protection
125% Over-Voltage Protection
Adjustable Current-Limit Protection
Using Sense Low-Side MOSFET’s RDS(ON)
Over-Temperature Protection
TDFN-10 3x3 Package
Lead Free and Green Devices Available (RoHS Compliant)
Applications
Notebook
Table PC
Hand-Held Portable
AIO PC
LCD Monitor / TV
Battery Charger
ADSL Modem
深圳市凌晔科技有限公司
广东省深圳市福田区华强广场C座13L
Tel:0755-83660559
qq:869030400
E-mail:869030400@qq.com
封装:TDFN 3x3
批号:18+
数量*:2800000
描述:产品详情:
The TD1728 is a single-phase, constant-on-time, synchronous PWM controller, which drives N-channel MOSFETs. The TD1728 steps down high voltage to generate low-voltage chipset or RAM supplies in notebook computers.
The TD1728 provides excellent transient response and accurate DC voltage output in either PFM or PWM Mode. In Pulse Frequency Mode (PFM), the TD1728 provides very high efficiency over light to heavy loads with loading- modulated switching frequencies. In PWM Mode, the converter works nearly at constant frequency for low-noise requirements.
The TD1728 is equipped with accurate positive current- limit, output under-voltage, and output over-voltage protections, perfect for NB applications. The Power-On- Reset function monitors the voltage on VCC to prevent wrong operation during power-on. The TD1728 has a 1ms digital soft-start and built-in an integrated output discharge method for soft-stop. An internal integrated soft-start ramps up the output voltage with programmable slew rate to reduce the start-up current. A soft-stop function actively discharges the output capacitors with controlled reverse inductor current.
The TD1728 is available in 10pin TDFN 3x3 package.
Features
Adjustable Output Voltage from +0.7V to +5.5V
0.7V Reference Voltage
±1% Accuracy Over-Temperature
Operates from an Input Battery Voltage Range of +1.8V to +32V
Power-On-Reset Monitoring on VCC Pin
Excellent Line and Load Transient Responses
PFM Mode for Increased Light Load Efficiency
Selectable PWM Frequency from 4 Preset Values
Integrated MOSFET Drivers
Integrated Bootstrap Forward P-CH MOSFET
Adjustable Integrated Soft-Start and Soft-Stop
Selectable Forced PWM or Automatic PFM/PWM Mode
Power Good Monitoring
70% Under-Voltage Protection
125% Over-Voltage Protection
Adjustable Current-Limit Protection
Using Sense Low-Side MOSFET’s RDS(ON)
Over-Temperature Protection
TDFN-10 3x3 Package
Lead Free and Green Devices Available (RoHS Compliant)
Applications
Notebook
Table PC
Hand-Held Portable
AIO PC
LCD Monitor / TV
Battery Charger
ADSL Modem
深圳市凌晔科技有限公司
广东省深圳市福田区华强广场C座13L
Tel:0755-83660559
qq:869030400
E-mail:869030400@qq.com
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