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参数资料
| 型号： | AS1353-28-T |
| 厂商： | AUSTRIAMICROSYSTEMS AG |
| 元件分类： | 基准电压源/电流源 |
| 英文描述： | 150mA LDO, rev. Batt., Byp.; Package Type: SOT23-5; Output Range: 2.8V |
| 封装： | SOT23-5 |
| 文件页数： | 10/13页 |
| 文件大小： | 293K |
| 代理商： | AS1353-28-T |
www.austriamicrosystems.com
Revision 1.03
10 - 13
AS1353/AS1356
Data Sheet
- Typical Application
9 Typical Application
Figure 13. Typical Application Diagrams
Capacitor Selection and Regulator Stability
Ceramic capacitors are highly recommended as they offer distinct advantages over their tantalum and aluminum elec-
trolytic components.
For stable operation with load currents up to 150mA over the entire device temperature range, use a 1μF (min)
ceramic output capacitor with an ESR <0.2
Ω
.
Use large output capacitor values (10μF max) to reduce noise and improve load transient-response, stability and
power-supply rejection.
Note:
Some ceramic capacitors exhibit large capacitance and ESR variations with variations in temperature. Z5U
and Y5V capacitors may be required to ensure stability at temperatures below T
AMB
= -10oC. With X7R or X5R
capacitors, a 1μF capacitor should be sufficient at all operating temperatures.
Power Supply Rejection Ratio
The AS1353/AS1356 are designed to deliver low dropout voltages and low quiescent currents. Power-supply rejection
is 60dB (typ) at low frequencies. To improve power supply-noise rejection and transient response, increase the values
of the input and output bypass capacitors (see Figure 13).
The Typical Operating Characteristics (page 6) show the device line- and load-transient responses. See the Power-
Supply Rejection Ratio vs. Frequency graph in the Typical Operating Characteristics section (page 6) for further
details.
Dropout Voltage
For standard products with output voltage greater than the minimum V
IN
(2.5V), the minimum input-output voltage dif-
ferential (dropout voltage) determines the lowest usable supply voltage. This determines the useful end-of-life battery
voltage in battery-powered systems.
The dropout voltage is a function of the P-MOSFET drain-to-source on-resistance multiplied by the load current, and is
calculated by:
V
DROPOUT
= V
IN
- V
OUT
= R
DS(ON)
x I
OUT
(EQ 3)
Where:
R
DS(ON)
is the drain-to-source on-resistance.
I
OUT
is the supply current.
See Typical Operating Characteristics (page 6) for further information.
AS1356
SHDNM
IN
OUT
POK
C
IN
1μF
+2.5 to
+5.5V
C
OUT
1μF
100k
Ω
On
Off
Preset Output
1.5 to 3.6V,
150mA
To Micro-
processor
AS1353
BP
C
BP
0.01μF
SHDNM
IN
OUT
C
IN
1μF
+2.5 to
+5.5V
C
OUT
1μF
On
Off
Preset Output
1.5 to 3.6V,
150mA
GND
GND
相关PDF资料 |
PDF描述 |
|---|---|
| AS1353-30-T | 150mA LDO, rev. Batt., Byp.; Package Type: SOT23-5; Output Range: 3.0V |
| AS1353-33-T | 150mA LDO, rev. Batt., Byp.; Package Type: TSOT23-5; Output Range: 3.3V |
| AS1353-36-T | 150mA LDO, rev. Batt., Byp.; Package Type: SOT23-5; Output Range: 3.6V |
| AS1356-15-T | 150mA LDO, rev. Batt. Byp. POK; Package Type: SOT23-5; Output Range: 1.5V |
| AS1356-18-T | 150mA LDO, rev. Batt. Byp. POK; Package Type: SOT23-5; Output Range: 1.8V |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AS1353-30-T | 功能描述:IC REG LDO 3V .15A SOT23-5 RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:3,000 系列:- 稳压器拓扑结构:正，固定式 输出电压:2.5V 输入电压:2.5 V ~ 5.5 V 电压 - 压降（标准）:- 稳压器数量:1 电流 - 输出:300mA（最小值） 电流 - 限制（最小）:360mA 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-5 细型，TSOT-23-5 供应商设备封装:TSOT-23-5 包装:带卷 (TR) |
| AS1353-33-T | 功能描述:IC REG LDO 3.3V .15A SOT23-5 RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:3,000 系列:- 稳压器拓扑结构:正，固定式 输出电压:2.5V 输入电压:2.5 V ~ 5.5 V 电压 - 压降（标准）:- 稳压器数量:1 电流 - 输出:300mA（最小值） 电流 - 限制（最小）:360mA 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-5 细型，TSOT-23-5 供应商设备封装:TSOT-23-5 包装:带卷 (TR) |
| AS1353-36-T | 功能描述:IC REG LDO 3.6V .15A SOT23-5 RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:3,000 系列:- 稳压器拓扑结构:正，固定式 输出电压:2.5V 输入电压:2.5 V ~ 5.5 V 电压 - 压降（标准）:- 稳压器数量:1 电流 - 输出:300mA（最小值） 电流 - 限制（最小）:360mA 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-5 细型，TSOT-23-5 供应商设备封装:TSOT-23-5 包装:带卷 (TR) |
| AS1354-33-T | 制造商:AMS 功能描述:IC LINEAR REGULATOR |
| AS1355 | 制造商:AMSCO 制造商全称:austriamicrosystems AG 功能描述:300mA, Triple LDO |
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