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參數(shù)資料
| 型號： | R1121N291A-TL |
| 廠商： | RICOH COMPANY LTD |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | THREE-TERMINAL POSITIVE FIXED VOLTAGE REGULATORS |
| 中文描述： | 2.9 V FIXED POSITIVE LDO REGULATOR, 0.3 V DROPOUT, PDSO5 |
| 封裝： | MINI, SOT-23, 5 PIN |
| 文件頁數(shù)： | 1/16頁 |
| 文件大小： | 135K |
| 代理商： | R1121N291A-TL |
’99.7.13
LOW NOISE 150mA LDO REGULATOR
R1121N SERIES
Rev.1.11
- 1 -
I
OUTLINE
The R1121N Series are voltage regulator ICs with high output voltage accuracy, extremely low supply current, low ON-
resistance and high ripple rejection by CMOS process. Each of these voltage regulator ICs consists of a voltage reference
unit, an error amplifier, resistors, a current limit circuit, and a chip enable circuit. These ICs perform with low dropout
voltage and a chip enable function.
The line transient response and load transient response of the R1121N Series are excellent, thus these ICs are very suitable
for the power supply for hand-held communication equipment.
The output voltage of these ICs is fixed with high accuracy.
Since the package for these ICs are SOT-23-5 (Mini-mold) package, high density mounting of the ICs on boards is possible.
I
FEATURES
Ultra-Low Supply Current.................................................TYP. 35
μ
A
Standby Mode ...................................................................TYP. 0.1
μ
A
Low Dropout Voltage........................................................TYP. 0.2V (I
OUT
= 100mA)
High Ripple Rejection.......................................................TYP. 70db (f = 1kHz)
Low Temperature-Drift Coefficient of Output Voltage .....TYP.
±
100ppm/
°
C
Excellent Line Regulation.................................................TYP. 0.05%/V
High Accuracy Output Voltage..........................................
±
2.0%
Small Package ..................................................................SOT-23-5 (Mini-mold)
Output Voltage ..................................................................Stepwise setting with a step of 0.1V in the range of 1.5V to 5.0V
is possible.
Built-in chip enable circuit (2 Types; A: active “L”, B: active “H”)
Pinout ................................................................................Similar to the TK112, TK111
I
APPLICATIONS
Power source for cellular phones such as GSM, CDMA and various kind of PCSs.
Power source for domestic appliances such as cameras, VCRs and camcorders.
Power source for battery-powered equipment.
I
BLOCK DIAGRAM
R1121NXX1A
R1121NXX1B
Vref
Current Limit
V
DD
3
1
2
4
V
OUT
GND
CE
Vref
Current Limit
V
DD
3
1
2
4
V
OUT
GND
CE
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| R1121N291A-TR | THREE-TERMINAL POSITIVE FIXED VOLTAGE REGULATORS |
| R1121N291B-TL | THREE-TERMINAL POSITIVE FIXED VOLTAGE REGULATORS |
| R1121N291B-TR | THREE-TERMINAL POSITIVE FIXED VOLTAGE REGULATORS |
| R1121N311A-TL | THREE-TERMINAL POSITIVE FIXED VOLTAGE REGULATORS |
| R1121N311A-TR | THREE-TERMINAL POSITIVE FIXED VOLTAGE REGULATORS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| R1121N291A-TR | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:Positive Fixed Voltage Regulator |
| R1121N291B-TL | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:Positive Fixed Voltage Regulator |
| R1121N291B-TR | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:Positive Fixed Voltage Regulator |
| R1121N301A | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:LOW NOISE 150mA LDO REGULATOR |
| R1121N301A-TL | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:LOW NOISE 150mA LDO REGULATOR |
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