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参数资料
| 型号： | FAN2560UC15X |
| 厂商： | Fairchild Semiconductor |
| 文件页数： | 8/11页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 1.5V .35A 5-WLCSP |
| 标准包装： | 1 |
| 稳压器拓扑结构： | 正，固定式 |
| 输出电压： | 1.5V |
| 输入电压： | 2.9 V ~ 5.5 V |
| 电压 - 压降（标准）： | 0.07V @ 350mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 350mA（最小值） |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 5-UFBGA，WLCSP |
| 供应商设备封装： | 5-WLCSP（0.96x1.33） |
| 包装： | 标准包装 |
| 产品目录页面： | 1221 (CN2011-ZH PDF) |
| 其它名称： | FAN2560UC15XDKR |
Application Information
P D (max) = ?
Θ JA
ENABLE Latch
A pull-down resistor latches the LOW state of the EN
? T J (max) ? T A ?
?
? ?
(1)
input after this input is externally forced LOW. A low-
side switch turns ON a 370 k Ω pull-down resistance to
keep the EN in LOW state, even if the EN input is
subsequently left floating.
Soft-Start
A soft-start function prevents an excessive input current
flow during start-up. When the LDO is enabled, the soft-
start circuit limits the peak inrush current below the
specified maximum value, which increases when C OUT
increases. To further reduce the peak inrush current,
the output capacitance may be lowered to 1μF, taking
advantage of FAN2560 stability over a wide range of
C OUT capacitance.
Short-Circuit and Thermal Protection
The FAN2560 output current voltage characteristic has
a fold-back shape that indicates a short-circuit current
limit lower than the maximum load current. Although the
short-circuit current is limited to below 500mA, the
device can supply high peak output currents of up to 1A
for brief periods. However, this output overload may
cause the die temperature to increase and exceed
maximum ratings due to power dissipation. In such
cases, depending upon the ambient temperature, V IN ,
load current, and the junction-to-air thermal resistance
( θ JA ) of the die, the device may enter thermal shutdown.
During output overload conditions, when the die
temperature exceeds the shutdown limit temperature of
150°C, the onboard thermal protection disables the
output until the temperature drops below this limit, at
which point the output is re-enabled.
where T J(max) is the maximum allowable junction
temperature of the die, which is 125°C, and T A is the
ambient operating temperature. θ JA is dependent on the
surrounding PCB layout and can be improved by
providing a heat sink of surrounding copper ground.
The addition of backside copper with through-holes,
stiffeners, and other enhancements can also aid in
reducing θ JA . The heat contributed by the dissipation of
other devices located nearby must be included in
design considerations.
Reverse Current Path
During normal operation, V IN is higher than V OUT and
the parasitic diode for the series power FET is reverse
biased. If the output voltage is externally forced above
the input voltage, the parasitic diode gets forward
biased and starts to conduct. In this case, it is
necessary to limit the reverse current to maximum
100mA to avoid adversely affecting reliability.
Capacitors Selection
The FAN2560 is stable with a wide range of ceramic
output capacitors. An output capacitor of at least 0.7μF
effective capacitance and the minimum ESR over the
frequency range of 3 to 300m Ω is required to ensure
stability over the full range of supply voltages and load
currents. High-ESR tantalum or electrolytic capacitors
may be used, but a low ESR ceramic capacitor has to
be connected in parallel at the output, at a distance no
more than 1-inch from the VOUT pin. The MLCC
capacitors indicated in Table 1 have been successfully
tested with the FAN2560.
Thermal Considerations
For best performance, the die temperature and the
power dissipated should be kept at moderate values.
The maximum power dissipated can be evaluated
based on the following relationship:
Table 1. Recommended Capacitors
Capacitance
1 μ F
2.2 μ F
2.2 μ F
Size
0603
0603
0402
Vendor
MURATA
MURATA
MURATA
Part number
GRM188R71C105KA120
GRM188R61A225KF340
GRM155R60J225ME15
? 2006 Fairchild Semiconductor Corporation
FAN2560 ? Rev. 1.0.1
8
www.fairchildsemi.com
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相关代理商/技术参数 |
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|---|---|
| FAN2564 | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:300mA Low VIN LDO for Digital Applications |
| FAN2564_11 | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:300mA Low VIN LDO for Digital Applications |
| FAN2564UC12X | 功能描述:低压差稳压器 - LDO 300mA 1.2V Low VIN LDO 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 |
| FAN2564UC13X | 功能描述:低压差稳压器 - LDO 300mA 1.3V Low VIN LDO 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 |
| FAN2564UC15X | 功能描述:低压差稳压器 - LDO 300mA 1.5V Low VIN LDO 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 |
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