(China (Mainland))
Product Summary
The NCP3170ADR2G is a high efficiency, wide input, high output current, synchronous PWM buck converter designed to operate from a 4.5 V to 13.2 V supply. The device is capable of producing an output voltage as low as 0.8 V. The NCP3170ADR2G can continuously output 6 A through MOSFET switches driven by an internally set 275 kHz oscillator. The 40-pin device provides an optimal level of integration to reduce size and cost of the power supply. The NCP3170ADR2G also incorporates an externally compensated transconductance error amplifier and a capacitor programmable soft-start function. Protection features include programmable short circuit protection and under voltage lockout (UVLO). The applications of the NCP3170ADR2G include Servers/Networking, DSP and FPGA Power Supply, DC-DC Regulator Modules.
Parametrics
NCP3170ADR2G absolute maximum ratings: (1)Control Circuitry Input Voltage, VCC: -0.3 V to 15 V; (2)Main Supply Voltage Input, PWRVCC: -0.3 V to 30 V; (3)Bootstrap Supply Voltage Input, BST: -0.3 V to 30 V wrt/GND 15 V wrt/PHASE; (4)Phase Node, PWRPHS: -0.7 V -5 V for < 50 nsec to 25 V; (5)Phase Node (Bootstrap Supply Return), CPHS: -0.7 V -5 V for < 50 nsec to 25 V; (6)Current Limit Set, BG: -0.3 V -2.0 V for < 200 nsec to 15 V; (7)Feedback, FB: -0.3 V to 5.5 V; (8)COMP/DISABLE, COMP/DIS: -0.3 V to 5.5 V.
Features
NCP3170ADR2G features: (1)Input Voltage Range from 4.5 V to 13.2 V; (2)275 kHz Internal Oscillator; (3)Greater than 90% Maximum Efficiency; (4)Boost Pin Operates to 25 V; (5)Voltage Mode PWM Control; (6)0.8 V ±1% Internal Reference Voltage; (7)Adjustable Output Voltage by Resistor Divider; (8)Capacitor Programmable Soft-Start; (9)80% Maximum Duty Cycle; (10)Input Undervoltage Lockout; (11)Resistor Programmable Current Limit; (12)This is a Pb-Free Device.
Diagrams
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 NCP3170ADR2G |
ON Semiconductor |
DC/DC Switching Converters 3A SWITCHING REGULATOR |
Data Sheet |
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