TLE6389G50 ,Step-Down DC/DC ControllerFunctional descriptionThe TLE6389 step-down DC-DC switching controllers provide high efficiency ove ..
TLE6389G50 ,Step-Down DC/DC ControllerFunctional descriptionThe TLE6389 step-down DC-DC switching controllers provide high efficiency ove ..
TLE6389G50 ,Step-Down DC/DC ControllerFeatures• Operation from 5V to 60V Input Voltage• 100% Maximum Duty Cycle• Efficiency >90%• Output ..
TLE6389G50-1 ,Step-Down DC/DC Controller Step-Down DC/DC Controller TLE 6389Target Datasheet
TLE6389G50-1 ,Step-Down DC/DC Controller Step-Down DC/DC Controller TLE 6389Target Datasheet
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TLE6389G 50-TLE6389G50-TLE6389G50-1
Step-Down DC/DC Controller
Step-Down DC/DC Controller
Target Datasheet
TLE 6389
Functional descriptionThe TLE6389 step-down DC-DC switching controllers provide high efficiency over loads
ranging from 1mA up to 3A. A unique PWM/PFM control scheme operates with up to a
100% duty cycle, resulting in very low dropout voltage. This control scheme eliminates
minimum load requirements and reduces the supply current under light loads to 100µA.
These step-down controllers drive an external P-channel MOSFET, allowing design
FeaturesOperation from 5V to 60V Input Voltage100% Maximum Duty CycleEfficiency >90%Output Current up to 3ALess than 100µA Quiescent Current2µA Max Shutdown CurrentUp to 350kHz Switching FrequencyAdjustable and Fixed 5V and
3.3V Output Voltage versions3% output voltage accuracy
(PWM Mode)Current-Mode Control SchemeOn Chip Low Battery DetectorAmbient operation range
-40°C to 125°C
TLE 6389operation in continuous-conduction mode allow the use of tiny surface-mount inductors.
Output capacitor requirements are also reduced, minimizing PC board area and system
costs. The output voltage is preset at 5V (TLE6389-50) or 3.3V (TLE6389-33) and
adjustable for the TLE6389. Input voltages can be up to 60V.
Pin Configuration (top view)
Pin Definitions and Functions
TLE 6389 TLE 6389Absolute Maximum Ratings
TLE 6389Absolute Maximum Ratings (cont’d)
TLE 6389Note:Maximum ratings are absolute ratings; exceeding any one of these values may
cause irreversible damage to the integrated circuit.
Absolute Maximum Ratings (cont’d)
TLE 6389Operating RangeElectrical Characteristics
5Vall voltages with respect to ground; positive current defined flowing into the pin; unless otherwise specified
TLE 6389Electrical Characteristics (cont’d)
5Vall voltages with respect to ground; positive current defined flowing into the pin; unless otherwise specified
TLE 6389Electrical Characteristics (cont’d)
5Vall voltages with respect to ground; positive current defined flowing into the pin; unless otherwise specified
TLE 6389Electrical Characteristics (cont’d)
5Vall voltages with respect to ground; positive current defined flowing into the pin; unless otherwise specified
TLE 6389Electrical Characteristics (cont’d)
5Vall voltages with respect to ground; positive current defined flowing into the pin; unless otherwise specified
TLE 6389Electrical Characteristics (cont’d)
5Vall voltages with respect to ground; positive current defined flowing into the pin; unless otherwise specified
