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參數(shù)資料
| 型號： | R1516H021B-T1-FE |
| 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： | 2.1 V FIXED POSITIVE LDO REGULATOR, 2 V DROPOUT, PDSO5 |
| 封裝： | HALOGEN FREE, SOT-89, 5 PIN |
| 文件頁數(shù)： | 12/14頁 |
| 文件大?。?/td> | 375K |
| 代理商： | R1516H021B-T1-FE |
R1516x
7
TYPICAL APPLICATION
C1
R1516x
Series
VDD
VOUT
CE
GND
C2
C1=Ceramic 0.1
μF
C2=Ceramic 0.1
μF
VOUT
TECHNICAL NOTES
When using the R1516x Series, please consider the following points.
Phase Compensation
The R1516x Series provide the constant-voltage without using C1 and C2 capacitors. However, if the input line
is too long, C1 should be connected. To minimize the input voltage fluctuation and the transient output voltage
fluctuation that is caused by the load fluctuation, C2 size should be increased. Please refer to the Basic Test
Circuit below when connecting a 0.1F to 20F C1 capacitor from VDD to GND, and also connecting a 0.1F to
20F C2 capacitor from VOUT to GND. The C1 and C2 capacitors, VDD, GND and VOUT should be connected as
close as possible to each other.
GND Wiring on Boards
For SOT-89-5 package, please connect the No.2 pin and the No.4 pin to the ground plane on the board.
For HSOP-6J package, please connect the No.2 pin, the No.4 pin and the No.5 pin to the ground plane on the
board.
Thermal Shutdown
The thermal shutdown is included, which limits the junction temperature to a maximum 150C (Typ.). Under
extreme conditions when the junction temperature begins to rise above 150C, the output is turned off, reducing
the output current to zero. When the junction temperature drops below +125C (Typ.), the output is turned on
again and the output current is restored to its nominal value. The output repeats turning on and off to form a
pulse shaped output unless the causes of the temperature rise are removed.
Chip Enable (CE) Circuit
The electrical potential level of chip enable (CE) pin should not be set in between VCEH and VCEL. Using the
electrical potentials in between VCEH and VCEL may cause the increase of supply current and may result in
unstable output.
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