参数资料
| 型号： | FT521JJA |
| 厂商： | Fremont Micro Devices USA |
| 文件页数： | 1/20页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 3.3V SOT23 |
| 标准包装： | 1 |
| 稳压器拓扑结构： | 正，固定式 |
| 输出电压： | 3.3V |
| 输入电压： | 2.5 V ~ 6 V |
| 电压 - 压降（标准）： | 0.12V @ 100mA |
| 稳压器数量： | 2 |
| 电流 - 限制（最小）： | 260mA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-6 |
| 供应商设备封装： | SOT-23-6 |
| 包装： | 标准包装 |
| 其它名称： | 1219-1090-6 |
Fremont Micro Devices
FT521xxx
Dual, Ultra Low Noise, 250mA LDO Regulator
FEATURES
Maximum Output Current Per Channel: More
than 250mA
Dropout Voltage: 120 mV @ 100mA
Operating Voltage Range: 2.5V~6V
Output Voltage Range: 1.2V to 5V
Highly Accurate: ± 2%
Low Power Consumption: 65 μ A (TYP.)
Standby Current: Less than 0.1 μ A (TYP.)
Ultra Low Output Noise: 30 μ Vrms.
High Ripple Rejection: 72dB @ 1kHz
Operating Temperature Range: -40 ℃ ~ 85 ℃
Low ESR capacitor compatible: Ceramic
capacitor
Ultra Small Packages: SOT-23-6L, SOT-89-6L
Customer Voltage Available
DESCRIPTION
The FT521xxx series are highly accurate, positive
dual channel CMOS LDO voltage regulators,
Performance features of the series include high
ripple rejection ratio, low noise, low dropout and fast
transient response.
The FT521xxx include a reference voltage source,
error amplifiers, driver transistors, current limiters
and phase compensators internally. The FT521xxx
current limiters’ fold-back circuit also operates as a
short protection for the output current limiter. The
high level of output stability is maintained even
during frequent load fluctuations, due to the
excellent transient response performance and high
PSRR achieved across a broad range of frequencies.
The EN function allows the output of each regulator
to be turned off independently.
APPLLICATIONS
The output voltages of each channel are selectable
Mobile Phones
Cordless Phones
Radio Communication Equipment
Digital Cameras, Video Cameras
Portable AV systems
Portable Games Device
PDAs
within the range of 1.2V to 3.6V. Standard output
voltage versions are 1.2, 1.3, 1.5, 1.8, 2.5, 2.7, 2.8,
3.0, 3.3, 3.6V. FT521xxx also fully compatible with
low ESR ceramic capacitors, reducing cost and
improving output stability. FT521xxx series is
available in the SOT-23-6L and SOT-89-6L package.
www.fremontmicro.com
Page 1 of 20
DS521-A4
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