Name: RAA211650 - 60V 5A Integrated Switching Regulator
Brand: Renesas Electronics Corporation
SKU: RAA211650 - 60V 5A Integrated Switching Regulator
Price: 2.52052 USD
Availability: InStock

Features

4.5V to 60V input supply range
Integrated high-side (90mΩ) and low-side (37mΩ)MOSFETs
1% accurate voltage reference over temperature
Fixed-frequency operation with optional spread spectrum and external clock sync
Adjustable switching frequency from 200kHz to 2.5MHz
Programmable soft-start and soft-stop timing
Programmable startup and shutdown delays
Bidirectional overcurrent protection on both internal FETs
Extensive voltage and temperature protection
Compact 28 Ld 4x5mm QFN package

Find Other Products in Buck Regulators (Integrated FETs)

Description

The RAA211650 is an integrated 60V, 5A synchronous buck regulator with adjustable switching frequency from 200kHz up to 2.5MHz. It supports a wide input voltage range from 4.5V to 60V and adjustable output voltage (0.8V to maximum duty cycle * V_IN). The integrated low r_DS(ON) MOSFETs, gate drivers, and the controller make RAA211650 an efficient voltage step-down solution.

The device switches at a default frequency of 500kHz if the RT pin is tied to AVCC, however, it can be programmed to switch from 200kHz to 2.5MHz by using an external resistor on the RT pin. The MODE/SYNC pin can dither the oscillator frequency if the spread-spectrum operation is required. The internal oscillator can also be synchronized to an external clock through the MODE/SYNC pin. The integrated regulator also has options either to use internal fixed compensation or user-selected external compensation.

To limit inrush current during startup, RAA211650 has 2ms fixed internal soft-start time. It can also be programmed by an external capacitor.

The RAA211650 provides programmable startup delay time for sequencing purposes. Also, the RAA211650 provides comprehensive protections including undervoltage lockout, overcurrent (positive and negative), overvoltage, and over-temperature.

Parameters

Attributes	Value
Topology [Rail 1]	Buck
Outputs (#)	1
Input Voltage (Min) [Rail 1] (V)	4.5
Input Voltage (Max) [Rail 1] (V)	60 - 60
Output Voltage (Min) [Rail 1] (V)	0.8
Output Voltage (Max) [Rail 1] (V)	55
Output Current (Max) [Rail 1] (A)	5
Switching Frequency Range (Typical) (kHz)	200 - 2500
Control Type	Current Mode
Peak Efficiency (%)	90
IQ [Rail 1] (µA)	10
SYNCH Capability	Yes
Qualification Level	Standard
Temp. Range (°C)	-40 to +125°C

Package Options

Pkg. Type	Pkg. Dimensions (mm)	Lead Count (#)	Pitch (mm)
QFN	5.0 x 4.0 x 0.90	28	0.5

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