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| 型号： | XRP6272IDBTR-F |
| 厂商： | Exar Corporation |
| 文件页数： | 8/13页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 5V/ADJ 2A 8HSOIC |
| 标准包装： | 1 |
| 稳压器拓扑结构： | 正，固定式或可调式 |
| 输出电压： | 5V，可调式 |
| 输入电压： | 1.8 V ~ 6 V |
| 电压 - 压降（标准）： | 0.48V @ 2A |
| 稳压器数量： | 1 |
| 电流 - 输出： | 2A（最小） |
| 电流 - 限制（最小）： | 2.2A |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm Width）裸露焊盘 |
| 供应商设备封装： | 8-HSOICN |
| 包装： | 标准包装 |
| 其它名称： | 1016-1746-6 |
X R P 6 2 7 2
2 A 5 V - A d j u s t a b l e L o w D r o p o u t V o l t a g e R e g u l a t o r
Fig. 22: PSRR Curve
APPLICATION INFORMATION
The XRP6272 is a low-dropout voltage
regulator with low quiescent current, low noise
and high PSRR. It can support load current up
to 2A. It incorporates current-limit and
thermal protection features.
T YPICAL A PPLICATION S CHEMATIC
P ROGRAMMING T HE O UTPUT V OLTAGE
XRP6272’s internal feedback resistors set the
output voltage V OUT to 5V when the ADJ pin is
connected to GND. Alternatively; the output
voltage is adjustable via the external feedback
resistor network R1 and R2 by calculating the
following formula:
R1
?? 1 ? ?
R2
where, V REF is the reference voltage set
internally at 0.7V nominal.
I NPUT & O UTPUT C APACITORS
XRP6272 is optimized for use with ceramic
capacitors. To ensure stability of the device,
an output ceramic capacitor of at least 4.7μF
or 10μF (for V OUT ≤ 1.8V) is recommended. An
input capacitor of 4.7μF is recommended.
X5R or X7R ceramic capacitors are
recommended as they have the best
temperature and voltage characteristics.
NOISE BYPASS CAPACITOR
A 22nF bypass capacitor at BP pin can reduce
output voltage noise. This pin can be left
floating if it is unnecessary.
THEORY OF OPERATION
S HUTDOWN
By connecting EN pin to GND, the XRP6272
can be shutdown to reduce the supply current
to 0.01 μ A (typ.). In this mode, the output
voltage of XRP6272 is equal to 0V.
C URRENT L IMIT
The XRP6272 includes current limit protection
feature, which monitors and controls the
maximum output current. If the output is
overloaded or shorted to ground, this can
protect the device from being damaged.
T HERMAL P ROTECTION
The XRP6272 includes a thermal protection
feature that protects the IC by turning off the
pass transistor when the maximum junction
temperature T J exceeds 150oC.
? 2011 Exar Corporation
8/13
Rev. 1.2.0
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相关代理商/技术参数 |
参数描述 |
|---|---|
| XRP6272ITC5TR-F | 功能描述:低压差稳压器 - LDO 2A LDO LOW NOISE 5V AND ADJ OUTPUT RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| XRP6274EH-F | 制造商:Exar Corporation 功能描述:Single Supply LDOs With 140mV Dropout |
| XRP6274EVB | 功能描述:XRP6274 1 - Single Channels per IC Positive Adjustable Linear Voltage Regulator Evaluation Board 制造商:exar corporation 系列:- 零件状态:有效 每 IC 通道数:1 - 单 电压 - 输出:1V 电流 - 输出:2A 电压 - 输入:1.045 V ~ 2.625 V 稳压器类型:正，可调式 工作温度:-40°C ~ 125°C 板类型:完全填充 所含物品:板 使用的 IC/零件:XRP6274 标准包装:1 |
| XRP6275EH-F | 制造商:Exar Corporation 功能描述:Single Supply LDOs With 140mV Dropout |
| XRP6275EVB | 功能描述:XRP6275 1 - Single Channels per IC Positive Adjustable Linear Voltage Regulator Evaluation Board 制造商:exar corporation 系列:- 零件状态:有效 每 IC 通道数:1 - 单 电压 - 输出:1V 电流 - 输出:3A 电压 - 输入:1.045 V ~ 2.625 V 稳压器类型:正，可调式 工作温度:-40°C ~ 125°C 板类型:完全填充 所含物品:板 使用的 IC/零件:XRP6275 标准包装:1 |
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