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参数资料
| 型号： | AS1329C EB |
| 厂商： | ams |
| 文件页数： | 2/20页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL AS1329C |
| 设计资源： | Design Support Tool |
| 标准包装： | 1 |
| 主要目的： | DC/DC，步升 |
| 输出及类型： | 1，非隔离 |
| 输出电压： | 3.3V 或 5V |
| 电流 - 输出： | 160mA 或 570mA |
| 输入电压： | 0.85 ~ 5 V |
| 稳压器拓扑结构： | 升压 |
| 频率 - 开关： | 1.2MHz |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | AS1329C |
AS1329
Datasheet - P i n A s s i g n m e n t s
4 Pin Assignments
Figure 2. Pin Assignments (Top View)
SW 1
6 VIN
4.1 Pin Descriptions
Table 2. Pin Descriptions
GND 2
FB 3
AS1329
5 VOUT
4 SHDNN
Pin Number
1
2
3
4
5
6
Pin Name
SW
GND
FB
SHDNN
VOUT
VIN
Description
Switch Pin . Connect an inductor between this pin and V IN . Keep the PCB trace lengths as
short and wide as is practical to reduce EMI and voltage overshoot. If the inductor current
falls to zero, or pin SHDNN is low, an internal 100 ? anti-ringing switch is connected from this
pin to V IN to minimize EMI.
Note: An optional Schottky diode can be connected between this pin and V OUT .
Signal and Power Ground . Provide a short, direct PCB path between this pin and the
negative side of the output capacitor(s).
Feedback Pin . Feedback input to the g m error amplifier. Connect a resistor divider tap to this
pin. The output voltage can be adjusted from 2.5 to 5V by: V OUT = 1.23V[1 + (R 1 /R 2 )]
Shutdown Pin . Logic controlled shutdown input.
1 = Normal operation, 1.2MHz typical operating frequency.
0 = Shutdown; quiescent current <1μA. If SHDNN is undefined, pin SW may ring.
Note: In a typical application, SHDNN should be connected to V IN through a 1M ? pull-up
resistor.
Output Voltage Sense Input and Drain of the Internal PMOS Synchronous Rectifier .
Bias is derived from V OUT when V OUT exceeds V IN . PCB trace length from V OUT to the
output filter capacitor(s) should be as short and wide as is practical.
Input Voltage . The AS1329 gets its start-up bias from V IN unless V OUT exceeds V IN , in
which case the bias is derived from V OUT . Thus, once started, operation is completely
independent from V IN . Operation is only limited by the output power level and the internal
series resistance of the supply.
www.ams.com/DC-DC_Step-Up/AS1329
Revision 1.12
2 - 20
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AS1329C-TT_EK_ST | 功能描述:AS1329C - 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 或 5V 电流 - 输出:570mA 电压 - 输入:0.85 V ~ 5 V 稳压器拓扑:升压 频率 - 开关:1.2MHz 板类型:完全填充 所含物品:板 使用的 IC/零件:AS1329C 标准包装:1 |
| AS132R4FLF | 制造商:TT Electronics / IRC 功能描述:AS132R4FLF |
| AS132R4HLF | 制造商:TT Electronics / IRC 功能描述:AS132R4HLF |
| AS132R4JLF | 制造商:TT Electronics / IRC 功能描述:AS132R4JLF |
| AS1330 | 制造商:AMSCO 制造商全称:austriamicrosystems AG 功能描述:4MHz, Low Voltage, DC-DC Step-Up Converter |
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