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| 型号： | AS1326A-BTDT |
| 厂商： | ams |
| 文件页数： | 16/19页 |
| 文件大小： | 0K |
| 描述： | IC REG BST SYNC 3.3V/ADJ 10TDFN |
| 设计资源： | Design Support Tool |
| 标准包装： | 6,000 |
| 类型： | 升压（升压） |
| 输出类型： | 两者兼有 |
| 输出数： | 1 |
| 输出电压： | 3.3V，2.5 V ~ 5 V |
| 输入电压： | 0.7 V ~ 5 V |
| 频率 - 开关： | 1MHz |
| 电流 - 输出： | 800mA |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-WFDFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 10-TDFN（3x3） |
AS1326
Datasheet - A p p l i c a t i o n I n f o r m a t i o n
The input filter capacitor reduces peak currents drawn from the input source and also reduces input switching noise.
The input voltage source impedance determines the required value of the input capacitor. When operating directly from
one or two NiMh cells placed close to the AS1326A/AS1326B, use a single 33μF low-ESR input filter capacitor.
Note: With higher impedance batteries, such as alkaline and Li+, a higher value input capacitor may improve effi-
ciency.
The output filter capacitor reduces output ripple voltage and provides the load with transient peak currents when nec-
essary. For the output, a 100μF, low-equivalent series-resistance (ESR) capacitor is recommended for most applica-
tions.
Low-ESR tantalum capacitors offer a good trade-off between price and performance. Do not exceed the ripple current
ratings of tantalum capacitors.
Note: Aluminum electrolytic capacitors should not be used as their high ESR typically results in higher output ripple
voltage.
Additional External Components
!
!
Bypass pin REF to GND with a 10nF ceramic capacitor.
Bypass pin OUT to GND with a 330nF ceramic capacitor.
Note: External components should be placed as close to its respective pins as possible, within 5mm (0.2”).
Layout Considerations
High switching-frequencies and large peak currents of the AS1326A/AS1326B make PC board layout a critical part of
design. Poor design may cause excessive EMI and ground bounce, both of which can cause instability or regulation
errors by corrupting the voltage and current feedback signals.
!
!
!
!
Power components such as the inductor, converter IC, filter capacitors, and output diode should be placed as close
together as possible, and their traces should be kept short, direct, and wide.
Keep the voltage feedback network very close to the device, within 5mm (0.2”) of the pin.
Do as many vias as possible on the exposed pad (for thermal performance) to the ground plane
Keep noisy traces, such as those from the pin LX, away from the voltage feedback network and guarded from
them using grounded copper traces.
www.austriamicrosystems.com
Revision 1.05
15 - 18
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相关代理商/技术参数 |
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| AS1326A-BTDT-1K | 功能描述:IC REG BST SYNC 3.3V/ADJ 10-TDFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:50 系列:- 类型:升压（升压） 输出类型:可调式 输出数:1 输出电压:5 V ~ 25 V 输入电压:2.3 V ~ 5.5 V PWM 型:电流模式 频率 - 开关:600kHz，1.2MHz 电流 - 输出:1A 同步整流器:无 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-TSSOP，8-MSOP（0.118"，3.00mm 宽） 包装:管件 供应商设备封装:8-MSOP |
| AS1326A-BTDU | 制造商:ams 功能描述:DC-DC Step Up, Fixed, Sync, 0.7 to 5.0V input, 3.3, 2.5 to 5.0V (650mA) Output, 96% Efficiency, 1200 kHz fmax, TDFN-10, Synchronizes to External Clock, Tray |
| AS1326A-TD_EK_ST | 功能描述:AS1326 - DC/DC, Step Up 1, Non-Isolated Outputs Evaluation Board 制造商:ams 系列:- 零件状态:有效 主要用途:DC/DC，步升 输出和类型:1，非隔离 功率 - 输出:- 电压 - 输出:3.3V 电流 - 输出:800mA 电压 - 输入:0.7 V ~ 5 V 稳压器拓扑:升压 频率 - 开关:1MHz 板类型:完全填充 所含物品:板 使用的 IC/零件:AS1326 标准包装:1 |
| AS1326B | 制造商:AMSCO 制造商全称:austriamicrosystems AG 功能描述:High Current, 0.8A DC-DC Step-Up Converters |
| AS1326B-BTDR | 功能描述:IC REG BST SYNC 3.3V/ADJ 10TDFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 产品培训模块:MIC23xxx HyperLight Load™ Regulators 标准包装:5,000 系列:HyperLight Load® 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.8V 输入电压:2.7 V ~ 5.5 V PWM 型:混合物 频率 - 开关:4MHz 电流 - 输出:2A 同步整流器:是 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:8-VFDFN 裸露焊盘，8-MLF? 包装:带卷 (TR) 供应商设备封装:8-MLF?（2x2） 产品目录页面:1094 (CN2011-ZH PDF) 其它名称:576-3303-2 |
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