LA5677M Просмотр технического описания (PDF) - SANYO -> Panasonic

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LA5677M

Dual Switching Regulator Control IC

SANYO -> Panasonic 

LA5677M

6. Error Amplifier Block

Error amplifiers 1 and 2 are amplifiers for detecting the output voltages, i.e., the LA5677M application system output

voltages. Since the common mode input voltage range is 1.05 to 1.45 V, we recommend setting their input voltages

to Vref/2. Pins 5 and 12 are the output pins, and the gain is set and the frequency characteristics adjusted with a

resistor and a capacitor connected between the outputs and the non-inverting inputs of each amplifier. The outputs

are also connected to the short circuit protection circuit detection circuit.

7. Output Block

The outputs are single end open collector outputs with an NPN Darlington pair structure.

Sample Application Circuit: +5 V, 1 A step-down converter and –5 V, 0.5 A polarity inverting converter using a

12 V input

No. 3660-6/7

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