■Overview
When a capacitor is connected to the output of a conventional regulator, a rush current is generated as it charges during the output startup.
The main pain power supply unit, including the transistor that forms the pre-stage to the regulator, must therefore be capable of withstanding the rush current.
The startup of the <MM192x Series>, on the other hand, is softened by a capacitor connected to the soft start terminal, and the rush current can be suppressed.
The output capacitor can then be a 1 F ceramic capacitor, leading to space savings on the IC mounting as well as in the main power supply unit, and thus enabling cost reductions.
§ Features
1. | Soft start function |
2. | Compatible with 1 µF ceramic output capacitor |
3. | Maximum output current: 1A |
4. | ON/OFF control terminal included |
5. | Packaging: 2 Types (TO-252-5, HSOP-8) |
§ Main specifications
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Power supply voltage |
2.4 E12.0V |
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Output voltage |
1.5 E5.1V (0.1V step) |
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Output voltage accuracy |
±2% (Vo<1.5V ±30mV) |
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Unloaded current consumption |
1mA typ. |
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OFF current consumption |
1µA max. |
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I/O voltage difference |
0.3V max. (Io=500mA), 0.6V max. (Io=1A) |
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Line regulation |
10mV typ. (Io=250 mA, Vin=Vo+1.5 ~ 2.5V) |
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Load regulation |
20mV typ. (Io=1mA ~ 1A) |
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Output voltage temperature coeff |
±100ppm/°C typ. |
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External dimensions |
6.60 × 9.90 × 2.30 (T0-252-5: including terminals)
5.00 × 6.20 × 1.55 (HSOP-8: including terminals) (Unit:mm) |
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