Product Summary
The 78st305hc is a wide input voltage, 3 terminal Integrated Switching Regulator (ISR). Employing a ceramic substrate, the 78st305hc has a maximum output current of 3A. The output voltage is laser trimmed for high accuracy. The 78st305hc regulator has internal short-circuit and overtemperature protection and may be used in a wide variety of applications.
Parametrics
78st305hc absolute maximum ratings: (1)Output Current: 0.1* to 3.0 A; (2)Input Voltage Range: 8 to 20 V; (3)Output Voltage Tolerance: ±1.0 to ±2.0 %Vo; (4)Line Regulation: ±0.4 to ±0.8 %Vo; (5)Load Regulation: ±0.2 to ±0.4 %Vo; (6)Ripple/Noise: 1 %Vo; (7)Transient Response (with 100μF output cap: 5.0 %Vo; (8)Efficiency: 80 %; (9)Switching Frequency: 0.95 to 1.05 MHz; (10)Absolute Maximum: -40 to +70 ℃; (11)Operating Temperature Range:; (12)Recommended Operating: -40 to +70 ℃; (13)Thermal Resistance: 35 ℃/W; (14)Storage Temperature: -40 to +125 ℃; (15)Mechanical Shock: 500 G’s; (16)Mechanical Vibration: 10 G’s.
Features
78st305hc features: (1)High Efficiency > 80%; (2)Wide Input Range; (3)Self-Contained Inductor; (4)Short-Circuit Protection; (5)Over-Temperature Protection; (6)Fast Transient Response.
Diagrams

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![]() 78ST305HC |
![]() Texas Instruments |
![]() DC/DC Converters 5Vout 3A Wide Input Adj Step-Down ISR |
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| Image | Part No | Mfg | Description | ![]() |
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![]() 78ST105VC |
![]() Texas Instruments |
![]() DC/DC Converters 5Vout 1.5A Wide Inp Pos Step-Down ISR |
![]() Data Sheet |
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![]() 78ST133SC |
![]() Texas Instruments |
![]() DC/DC Converters 3.3Vout 1.5A Wide Pos Step-Down ISR |
![]() Data Sheet |
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![]() 78ST205SC |
![]() Texas Instruments |
![]() DC/DC Converters 5Vout 2A Wide Inp Pos Step-Down ISR |
![]() Data Sheet |
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![]() 78ST212HC |
![]() Texas Instruments |
![]() DC/DC Converters 12Vout 2Amp 24V-In put Pos Step-Dwn ISR |
![]() Data Sheet |
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![]() 78ST205HC |
![]() Texas Instruments |
![]() DC/DC Converters 5Vout 2Amp Wide- Inp Pos Step-Dwn ISR |
![]() Data Sheet |
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![]() 78ST115HC |
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![]() REGULATOR 15.0V HORIZONTAL |
![]() Data Sheet |
![]() Negotiable |
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(China (Mainland))









