S6AP413A
4ch DC/DC Converter with I2C Interface
and Internal SW FETs
S6AP413A contains 3ch buck DC/DC converter and 1ch buck-boost DC/DC converter. S6AP413A can supply the main power line in
several systems by using only its chip. The current mode control is adopted for the DC/DC converter, and it is possible to use the
small chip inductor with the high switching frequency operation which contains internal switching FETs. S6AP413A contains the
output setting resistor and the phase compensation circuit, and contributes to reduce the number of external components and its
mount area. Also it contains the CTL input pin which can control the ON/OFF for each DC/DC converter, the Power Good signal
output pin and I2C communication interface, therefore it is easy to design the power supply sequence. It is possible to tune in the
output voltage exactly using the I2C communication.
Features
Operating input voltage range: 2.5V to 5.5V (Maximum rating: 6.5V)
Output voltage setting range: DD1*:0.7V to 1.32V (20mV/step)
DD2*:1.2V to 1.95V (50mV/step)
DD3*:2.8Vto 3.5V (100mV/step)
DD4*:0.7V to 1.32V (20mV/step)
Maximum output current: DD1:2A, DD2:1.2A, DD3:0.6A, DD4:2A
Internal switching FETs, output voltage setting resistor, phase compensation circuit and output discharge resistor (all DC/DC
converters)
Buck-boost DC/DC converter is seamless to change operation mode
Soft start time setting range: 1 ms to 16 ms (approximately 1ms/step)
Switching frequency for the DC/DC converter: 3 MHz
Communication interface: I2C (ON/OFF, Output voltage, Soft start time)
Internal PFM/PWM auto switching mode
Each DC/DC converter Power Good function (open drain)
Several protection functions: Under voltage lockout (UVLO), Over current protection (OCP), Thermal shut down (TSD)
Small package: QFN32 (5mm × 5mm × 0.71mm, 0.5mm pitch)
*: DD1, DD2, DD3, and DD4: DC/DC converter blocks 1,2,3,4
Applications
Network equipment, Factory automation, Security system, Surveillance camera, Electrical music instrument, Multi-function printer,
Scanner, Printer, Copy machine, Home appliances, Data storage (HDD, SSD), Mobile equipment for Li+ battery (1 cell)
Cypress Semiconductor Corporation
Document Number: 002-08448 Rev.*A
•
198 Champion Court
•
San Jose, CA 95134-1709
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408-943-2600
Revised February 26, 2016