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参数资料
| 型号： | AS1337B-BTDT |
| 厂商： | ams |
| 文件页数： | 3/16页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK BOOST SYNC ADJ 8TDFN |
| 标准包装： | 1 |
| 类型： | 降压（降压），升压（升压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 2.5 V ~ 5 V |
| 输入电压： | 0.65 V ~ 4.5 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 1.2MHz |
| 电流 - 输出： | 200mA |
| 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： | 8-WDFN 裸露焊盘 |
| 包装： | 标准包装 |
| 供应商设备封装： | 8-TDFN（3x3） |
| 其它名称： | AS1337B-BTDTDKR |
AS1337
Datasheet - P i n A s s i g n m e n t s
4 Pin Assignments
Figure 2. Pin Assignments (Top View)
VOUT 1
LX 2
PGND 3
AS1337
8 FB
7 VIN
6 POK
Pin Descriptions
Table 2. Pin Descriptions
GND 4
9 GND
5 EN
Pin Name
VOUT
LX
PGND
GND
EN
POK
VIN
FB
GND
Pin Number
1
2
3
4
5
6
7
8
9
Description
Output Voltage . 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.
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 EN is low, an internal 100 Ω 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 .
Power Ground . Provide a short, direct PCB path between this pin and the output capacitor(s).
Ground
Enable Pin . Logic controlled enable input.
1 = Normal operation
0 = Shutdown
Note: In a typical application, EN should be connected to V IN through a 1M Ω
pull-up resistor.
POK. High when V OUT is within regulation.
Input Voltage . The AS1337 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.
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 2.5V to 5V by: V OUT = 1.23V[1 + (R 1 /R 2 )]
Exposed Pad Ground
Revision 1.05
2 - 15
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相关代理商/技术参数 |
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| AS1339 | 制造商:AMSCO 制造商全称:austriamicrosystems AG 功能描述:650mA RF Step-Down DC-DC for PA, with two LDOs |
| AS1339 EB | 功能描述:BOARD EVAL AS1339 RoHS:否 类别:编程器，开发系统 >> 评估板 - DC/DC 与 AC/DC（离线）SMPS 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:True Shutdown™ 主要目的:DC/DC，步升 输出及类型:1，非隔离 功率 - 输出:- 输出电压:- 电流 - 输出:1A 输入电压:2.5 V ~ 5.5 V 稳压器拓扑结构:升压 频率 - 开关:3MHz 板类型:完全填充 已供物品:板 已用 IC / 零件:MAX8969 |
| AS1339-BWLT | 功能描述:IC CONV BUCK 650MA 16-WLP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 标准包装:43 系列:- 应用:控制器，Intel VR11 输入电压:5 V ~ 12 V 输出数:1 输出电压:0.5 V ~ 1.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:48-VFQFN 裸露焊盘 供应商设备封装:48-QFN（7x7） 包装:管件 |
| AS1339-DB | 制造商:ams 功能描述:Evaluation Board |
| AS1339-EB | 功能描述:电源管理IC开发工具 AS1339 Evaluation Board RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
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