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參數(shù)資料
| 型號(hào)： | R1141Q401D-TR |
| 廠商： | RICOH COMPANY LTD |
| 元件分類： | 固定正電壓單路輸出LDO穩(wěn)壓器 |
| 英文描述： | SC82 120mA LDO REGULATOR |
| 中文描述： | 4 V FIXED POSITIVE LDO REGULATOR, 0.28 V DROPOUT, PDSO4 |
| 封裝： | MINI, SC-82AB, 4 PIN |
| 文件頁數(shù)： | 11/15頁 |
| 文件大小： | 141K |
| 代理商： | R1141Q401D-TR |
R1141Q
5
ELECTRICAL CHARACTERISTICS by OUTPUT VOLTAGE
Dropout Voltage
VDIF (V)
Output Voltage
VOUT (V)
Condition
Typ.
Max.
VOUT = 1.5
0.36
0.70
VOUT = 1.6
0.32
0.60
VOUT = 1.7
0.30
0.50
1.8 <
= VOUT <
= 2.0
0.28
0.40
2.1 <
= VOUT <
= 2.7
0.24
0.35
2.8 <
= VOUT <
= 4.0
IOUT = 120mA
0.18
0.28
TECHNICAL NOTES
When using these ICs, consider the following points:
Phase Compensation
In these ICs, phase compensation is made for securing stable operation even if the load current is varied. For
this purpose, be sure to use a 2.2F or more capacitor COUT with good frequency characteristics and ESR
(Equivalent Series Resistance).
(Note: When the additional ceramic capacitors are connected to the Output Pin with Output capacitor for
phase compensation, the operation might be unstable. Because of this, test these ICs with as same external
components as ones to be used on the PCB.)
PCB Layout
Make VDD and GND lines sufficient. When their impedance is high, picking up the noise or unstable operation
may result. Connect a capacitor with as much as 1.0F capacitor between VDD and GND pin as close as
possible.
Set external components, especially output capacitor as close as possible to the ICs and make wiring as short
as possible.
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