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POWER SUPPLY ICs


2ch Synchronous Step-down DC/DC Converter + 1ch LDO + 2ch P-GOOD Monolithic IC MM3558 Series
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[Outline]

This IC is a compound power supply IC which built in Synchronous Step-down DC/DC converter 2ch, LDO1ch, and P-GOOD2ch.
The ripple of the input current is decreased so that the DC/DC converter of 2ch may work by the opposite phase, and a low noise is achieved. Because the output voltage can be set by external resistance, it is possible to use it according to various output conditions.

[Features]

1.	Input Operating Voltage Range	3.0V ~ 5.5V
2.	Shutdown Supply Current	0.1µA (Typ.)
3.	Temperature Range	-30 ~ +80°C
4.	DC/DC converters
	Output Voltage	1.0V ~ PVIN	Accuracy ±2%
	Maximum Output Current	1.5A / 1ch
	Oscillator Frequency	2MHz (Typ.)
	Output Voltage is changeable in external parts.
	Built-in start/stop sequence circuit.
	Output OverVoltage Protection function	0.72V (Typ.)
	Built-in SoftStart circuit	1.5ms (Typ.)
	Built-in OverCurrent detection timer	1.5ms (Typ.)
5.	LDO
	Output Voltage	3.3V	Accuracy ±1%
	Dropout voltage	0.10V (Typ.)
	Current limit	40mA (Typ.)
6.	P-GOOD
6.	Input/Output Over Voltage/Low Voltage, Over Current, and Thermal detection.

[Package]

SQFN-16A

[Applications]

1. Printer
2. Composit device

[Pin Assignment]

SQFN-16A
(TOP VIEW)

1	P_GOOD2	9	PGND2
2	EN1	10	SW2
3	SW1	11	EN23
4	PGND1	21	P_GOOD1
5	FB1	13	PVIN2
6	TP	14	AVIN
7	PVOUT3	15	AGND
8	FB2	16	PVIN1

[NOTE]
-Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification.
-The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.