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參數資料
| 型號： | LA5677M |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | Dual Switching Regulator Control IC(雙開關穩(wěn)壓器控制芯片) |
| 中文描述： | 雙開關穩(wěn)壓器控制IC（雙開關穩(wěn)壓器控制芯片） |
| 文件頁數： | 6/7頁 |
| 文件大?。?/td> | 98K |
| 代理商： | LA5677M |
No. 3660-6/7
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
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