LD3985XX29 ULTRA LOW DROP LOW NOISE BICMOS VOLTAGE REGULATOR LOW ESR CAPACITOR COMPATIBLE
The LD3985xx provides up to 150 mA, from 2.5 V to 6 V input voltage.
The ultra low drop-voltage, low quiescent current and low noise make it suitable for low power applications and in battery powered systems. Regulator ground current increases only slightly in dropout, further prolonging the battery life. Power supply rejection is better than 60 dB at low frequencies and starts to roll off at 10 kHz. High power supply rejection is maintained down to low input voltage levels common to battery operated circuits. Shutdown logic control function is available, this means that when the device is used as local regulator, it is possible to put a part of the board in standby, decreasing the total power consumption. The LD3985xx is designed to work with low ESR ceramic capacitors. Typical applications are in mobile phone and similar battery powered wireless systems.
技术特性
- Input voltage from 2.5V to 6V
- Stable with low ESR ceramic capacitors
- Ultra low dropout voltage (100mV typ. at 150mA load, 0.4mV typ. at 1mA load)
- Very low quiescent current (85µA typ. at no load, 170µA typ. at 150mA load; max 1.5µA in OFF mode)
- Guaranteed output current up to 150mA
- Wide range of output voltage: 1.22 V; 1.8 V; 2.5 V; 2.6 V; 2.7 V; 2.8 V; 2.9 V; 3 V; 3.3 V; 4.7 V
- Fast turn-on time: typ. 200µs
- [CO=1µF, CBYP= 10nF and IO=1mA]
- Logic-controlled electronic shutdown
- Internal current and thermal limit
- Output low noise voltage 30µVRMS over 10Hz to 100KHz
- S.V.R. of 60dB at 1KHz, 50dB at 10KHz
- Temperature range: -40°C to 125 °C
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功能框图
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LD3985XX29 订购信息
| 订购型号 |
产品状态 |
美金价格 |
数量 |
封装 |
包装形式 |
温度范围 |
材料声明 |
| LD3985M29R |
Active |
0.7497 |
1000 |
SOT23-5L |
Tape And Reel |
-40 °C-125 °C |
LD3985M29R |
| LD3985J29R |
Active |
0.6615 |
1000 |
Flip-Chip 500u |
Tape And Reel |
-40 °C-125 °C |
LD3985J29R |
| LD3985G29R |
Active |
0.6174 |
1000 |
TSOT23-5L |
Tape And Reel |
-40 °C-125 °C |
LD3985G29R |
DATASHEET
| 描述 |
版本 |
大小 |
| LD3985XX29 : Ultra low drop-low noise BiCMOS voltage regulators low ESR capacitors compatible |
14 |
481KB |
