参数资料
| 型号： | ZXCL5213V28H5TA |
| 厂商： | Diodes Inc |
| 文件页数： | 10/14页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 2.8V .15A SC70-5 |
| 产品目录绘图： | LDO SC70, SC70-5 Top LDO SC70, SC70-5 Side 1 LDO SC70, SC70-5 Side 2 LDO SC70, SC70-5 Pin Out |
| 标准包装： | 1 |
| 稳压器拓扑结构： | 正，固定式 |
| 输出电压： | 2.8V |
| 输入电压： | 最高 5.5V |
| 电压 - 压降（标准）： | 0.14V @ 100mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 150mA（最小值） |
| 电流 - 限制（最小）： | 160mA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 6-TSSOP（5 引线），SC-88A，SOT-353 |
| 供应商设备封装： | SC-70-5 |
| 包装： | 标准包装 |
| 其它名称： | ZXCL5213V28H5DKR |
ZXCL SERIES
Applications information (Cont)
Power dissipation
The maximum allowable power dissipation of
the device for normal operation (P max ), is a
function of the package junction to ambient
thermal resistance ( θ ja ), maximum junction
temperature (Tj max ), and ambient temperature
(T amb ), according to the expression:
P max = (Tj max – T amb ) / θ ja
The maximum output current (I max ) at a given
value of Input voltage (V IN ) and output voltage
(V OUT ) is then given by
I max = P max / (V IN - V OUT )
The value of qja is strongly dependent upon the
type of PC board used. Using the SC70 package
it will range from approximately 280°C/W for a
multi-layer board to around 450°C/W for a single
sided board. It will range from 180°C/W to
300°C/W for the SOT23-5 package. To avoid
entering the thermal shutdo wn state, Tjmax
should be assumed to be 125°C and Imax less
than the over-current limit,(I OLIM ). Power
derating for the SC70 and SOT23-5 packages is
shown in the following graph.
500
The dielectric of the ceramic capacitance is an
important consideration for the ZXCL Series
operation over temperature. Zetex recommends
minimum dielectric specification of X7R for the
input and output capacitors. For example a
ceramic capacitor with X7R dielectric will lose 20%
of its capacitance over a -40 C to 85 C temperature
range, whereas a capacitor with a Y5V dielectric
loses 80% of its capacitance at -40 C and 75% at
85 C.
An input capacitor of 1 F (ceramic or tantalum) is
recommended to filter supply noise at the device
input and will improve ripple rejection.
The input and output capacitors should be
positioned close to the device, and a ground plane
board layout should be used to minimise the
effects of parasitic track resistance.
Dropout voltage
The output pass transistor is a large PMOS device,
which acts like a resistor when the regulator enters
the dropout region. The dropout voltage is
therefore proportional to output current as shown
in the typical characteristics.
Ground current
The use of a PMOS device ensures a low value of
400
300
SOT23
ground current under all conditions including
dropout, start-up and maximum load.
Power supply rejection and load transient
response
200
100
0
SC70
Line and Load transient response graphs are
shown in the typical characteristics.
These show both the DC and dynamic shift in the
-40
-20
0
20
40
60
80
100
output voltage with step changes of input voltage
Temperature (°C)
Derating Curve
Capacitor selection and regulator stability
The device is designed to operate with all types
of output capacitor, including tantalum and low
ESR ceramic. For stability over the full operating
range from no load to maximum load, an output
capacitor with a minimum value of 1 μ F is
recommended, although this can be increased
without limit to improve load transient
performance. Higher values of output capacitor
will also reduce output noise. Capacitors with
ESR less than 0.5V are recommended for best
results.
and load current, and how this is affected by the
output capacitor.
If improved transient response is required, then an
output capacitor with lower ESR value should be
used. Larger capacitors will reduce over/
undershoot, but will increase the settling time.
Best results are obtained using a ground plane
layout to minimise board parasitics.
? Zetex Semiconductors plc 2007
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ZXCL5213V28H5TA-CUT TAPE | 制造商:DIODES 功能描述:ZXCL Series 5.5 V 100 mA Low Dropout 2.8 V Micropower Regulator - SC-70-5 |
| ZXCL5213V30 | 制造商:ZETEX 制造商全称:ZETEX 功能描述:MICROPOWER SC70-5 & SOT23-5 LOW DROPOUT REGULATORS |
| ZXCL5213V30H5 | 制造商:ZETEX 制造商全称:ZETEX 功能描述:MICROPOWER SC70-5 & SOT23-5 LOW DROPOUT REGULATORS |
| ZXCL5213V30H5TA | 功能描述:低压差稳压器 - LDO 3.0V LDO MIC/LMS 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 |
| ZXCL5213V30H5TA-CUT TAPE | 制造商:DIODES 功能描述:ZXCL Series 5.5 V 100 mA Low Dropout 3 V Micropower Regulator - SC-70-5 |
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