RAA210040 5V, 4A Step-Down DC/DC Mini Module with Integrated Inductor
■Based on a peak current mode control scheme, the RAA210040 provides fast transient response and excellent loop stability. The output voltage can be set as low as 0.6V, with setpoint accuracy better than 1.5% over line, load, and temperature. The operating frequency has a 2MHz default setting; however, it can also be set from 500kHz to 4MHz by an external resistor. The external synchronization is supported with an external clock signal up to 4MHz. The RAA210040 supports a 100% duty cycle operation to minimize the switching losses and allows less than 200mV dropout voltage. A dedicated enable pin and power-good flag allows for easy system power rails sequencing.
■An array of protection features, including input Undervoltage Lockout (UVLO), Overcurrent Protection (OCP), output Overvoltage Protection (OVP), and Over-temperature Protection (OTP), ensures safe operations under abnormal operating conditions
■Features
▲4A complete power supply
●Integrates controller, gate driver, MOSFETs, and inductor
▲2.7V to 5.5V input voltage range
▲Adjustable output voltage
●As low as 0.6V with ±1.5% accuracy over line,
load, and temperature
●Up to 95% efficiency
▲Default 2MHz current mode control operation
●500kHz to 4MHz resistor adjustable
●External synchronization up to 4MHz
●100% duty cycle
▲Dedicated enable pin and power-good flag
▲Internal 1ms soft start-up time
▲Soft-stop output discharge
▲UVLO, OCP, negative OCP, OVP, and OTP
●OCP/Short-Circuit Protection (SCP) hiccup mode
▲Compact RoHS compliant 3mmx3mmx1.7mm dual flat no-lead (DFN) package
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RAA210040 、 RAA2100404GLG#HD0 、 RAA2100404GLG#MD0 、 RTKA210040DR0000BU |
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Step-Down DC/DC Mini Module 、 power module 、 synchronous step-down, non-isolated complete power supply |
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[ Telecom ][ Industrial ][ optical ][ medical equipment ][ Point-of-load conversions ][ MCU ][ MPU ][ DSP ][ FPGA ] |
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Datasheet |
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Please see the document for details |
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DFN |
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English Chinese Chinese and English Japanese |
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Apr 13, 2021 |
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Rev.1.0 |
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R16DS0137EU0100 |
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1.6 MB |
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