? Overview

The < MM3608 / MM3615 > is a 300 mA hyposaturation type regulator IC with a built-in thermal shutdown and temperature sensor.
From a safety perspective, there has also been an increase in market demand for thermal shutdown for the low-current compact LDO. In addition to overcurrent prevention with conventional current limiting, the inclusion of thermal shutdown that detects heat and shuts down the IC helps to increase safety.
The MM3615 with built-in temperature sensor provides monitoring of the temperature within the IC from the system side, which allows solutions to be developed to increase the safety of the overall system.

§Features

1.

Built-in thermal shutdown (MM3608 / MM3615):

Shuts down output when abnormal heat generation is detected on the IC to prevent damage from abnormal heat generation.

2.

Built-in temperature sensor (MM3615):

The temperature within the chip can be output. The output of the temperature sensor is available in two line-up options: the linear type MM3615A; and the SW type MM3615B.
The MM3615A outputs voltage linearly in relation to temperature, while the MM3615B switches between High/Low with Tj=100ºC as the threshold value.
When conventional LDO are used the thermal design is such that the temperature within the IC is calculated from parameters such as heat resistance, however as this product allows monitoring of the temperature within the IC using a built-in temperature sensor, a more precise thermal design is possible.


§Main specifications

Operating voltage

1.8 to 6.5V

Output current

0 to 300mA

Output voltage

0.8 to 5.0V (0.1V steps)

Output voltage precision

±1% (Io=1mA,Vout?2V)
±0.020V (Io=1mA,Vout<2V)

Unloaded consumption current

90?A typ.

Input voltage difference

0.24V typ. (Io=300mA,Vo=3.0V)

Ripple extraction ratio

70dB typ. (f=1kHz)

Thermal shutdown detection temperature

150ºC typ.

Temperature output (MM3615A)

2.060V typ. (Tj=30ºC)
1.690V typ. (Tj=100ºC)

Temperature SW output (MM3615B)

100ºC typ.

Output capacity

1?F

Package

SOT-25A

External dimensions

2.9×2.8×11.5 (Unit:mm)



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