6V 1A, ACOT^® Buck Converter in Thin SOT-563 Package

RT5760A/RT5760B/RT5760C/RT5760D

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The RT5760A/B/C/D is a simple, easy-to-use, 1A synchronous step-down DC-DC converter with an input supply voltage range from 2.5V to 6V. The device build-in an accurate 0.6V reference voltage and integrates low R_DS(ON) power MOSFETs to achieve high efficiency in a SOT-563 (FC) package.

The RT5760A/B/C/D adopts Advanced Constant On-Time (ACOT^®) control architecture to provide an ultrafast transient response with few external components and to operate in nearly constant switching frequency over the line, load, and output voltage range. The RT5760A/C operate in automatic PSM that maintain high efficiency during light load operation. The RT5760B/D operate in Forced PWM that help to meet tight voltage regulation accuracy requirements.

The RT5760A/B/C/D senses both FETs current for a robust over-current protection. The device features cycle-by-cycle current limit protection and prevent the device from the catastrophic damage in output short circuit, over current or inductor saturation. A built-in soft-start function prevents inrush current during start-up. The device also includes input under-voltage lockout, output under-voltage protection, and over-temperature protection to provide safe and smooth operation in all operating conditions.

應用

Mobile Phones and Handheld Devices
STB, Cable Modem, and xDSL Platforms
WLAN ASIC Power / Storage (SSD and HDD)
General Purpose for POL LV Buck Converter

主要規格

	RT5760A	RT5760B	RT5760C	RT5760D
Status	Active	Active	Active	Active
Vin (min) (V)	2.5	2.5	2.5	2.5
Vin (max) (V)	6	6	6	6
Number of Outputs	1	1	1	1
Vout (min) (V)	0.6	0.6	0.6	0.6
Vout (max) (V)	6	6	6	6
Output Adj. Method	Resistor	Resistor	Resistor	Resistor
Iout (max) (A)	1	1	1	1
Current Limit (typ) (A)	2.65	2.65	2.65	2.65
Freq (typ) (kHz)	2200	2200	2200	2200
Ext Sync	No	No	No	No
Ron_HS (typ) (mOhm)	120	120	120	120
Ron_LS (typ) (mOhm)	80	80	80	80
Iq (typ) (mA)	0.025	0.3	0.025	0.3
Features	100% Duty Cycle;ACOT Control;Cycle-by-Cycle Current Limit;Enable Input;Fast Transient Response;Internal Compensation;OCP;OTP;PSM;Power Good;Stable with Ceramic Capacitor;UVP	100% Duty Cycle;ACOT Control;Cycle-by-Cycle Current Limit;Enable Input;Fast Transient Response;Force PWM;Internal Compensation;OCP;OTP;Power Good;Stable with Ceramic Capacitor;UVP	100% Duty Cycle;ACOT Control;Cycle-by-Cycle Current Limit;Enable Input;Fast Transient Response;Internal Compensation;OCP;OTP;PSM;Stable with Ceramic Capacitor;UVP	100% Duty Cycle;ACOT Control;Cycle-by-Cycle Current Limit;Enable Input;Fast Transient Response;Force PWM;Internal Compensation;OCP;OTP;Stable with Ceramic Capacitor;UVP
Package Type	SOT-563(FC)	SOT-563(FC)	SOT-563(FC)	SOT-563(FC)