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LP2985-33D PDF预览

LP2985-33D

更新时间: 2024-01-10 19:48:38
品牌 Logo 应用领域
其他 - ETC 调节器模拟IC光电二极管输出元件
页数 文件大小 规格书
10页 105K
描述
Analog IC

LP2985-33D 技术参数

生命周期:Obsolete零件包装代码:BGA
包装说明:VFBGA, BGA5,3X3,17/10针数:5
Reach Compliance Code:unknownECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.13
Is Samacsys:N可调性:FIXED
最大回动电压 1:0.575 V标称回动电压 1:0.28 V
最大绝对输入电压:16 V最大输入电压:16 V
最小输入电压:4.007 VJESD-30 代码:R-PBGA-B5
长度:1.5 mm最大电网调整率:0.01235%
功能数量:1输出次数:1
端子数量:5工作温度TJ-Max:125 °C
工作温度TJ-Min:-40 °C最大输出电流 1:0.15 A
最大输出电压 1:3.432 V最小输出电压 1:3.168 V
标称输出电压 1:3.3 V封装主体材料:PLASTIC/EPOXY
封装代码:VFBGA封装等效代码:BGA5,3X3,17/10
封装形状:RECTANGULAR封装形式:GRID ARRAY, VERY THIN PROFILE, FINE PITCH
包装方法:TAPE AND REEL认证状态:Not Qualified
调节器类型:FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR座面最大高度:0.75 mm
子类别:Other Regulators表面贴装:YES
技术:BIPOLAR端子形式:BALL
端子节距:0.5 mm端子位置:BOTTOM
最大电压容差:4%宽度:1.2 mm
Base Number Matches:1

LP2985-33D 数据手册

 浏览型号LP2985-33D的Datasheet PDF文件第2页浏览型号LP2985-33D的Datasheet PDF文件第3页浏览型号LP2985-33D的Datasheet PDF文件第4页浏览型号LP2985-33D的Datasheet PDF文件第6页浏览型号LP2985-33D的Datasheet PDF文件第7页浏览型号LP2985-33D的Datasheet PDF文件第8页 
Philips Semiconductors  
Product data  
Micropower 150 mA low noise,  
low dropout linear regulator  
LP2985-XX  
output voltage. If the feedback voltage is too high, the pass  
transistor gate is pulled up, allowing less current to pass to the  
output, resulting in a decrease in output voltage.  
TECHNICAL DISCUSSION  
As illustrated in Figure 3, the LP2985-XX consists of a band-gap  
voltage reference, an error amplifier, P-channel pass transistor,  
current limit circuit and an internal feedback voltage divider. The  
output voltage is fed back through an internal resistor voltage divider  
An external bypass capacitor connected to the NOISE pin reduces  
noise at the output.  
connected to the V  
pin.  
OUT  
Additional functional blocks include a current-limiter, thermal sensor  
and shut-down logic. The current-limiter monitors and controls the  
pass-transistor’s gate voltage, limiting the output current to its  
specified maximum value. Thus it can withstand a short-circuited  
output for an indefinite amount of time without damaging the part.  
The reference is connected to the error amplifier’s inverting input.  
The error amplifier compares the reference with the feedback  
voltage and amplifies the difference. If the feedback voltage is lower  
than the reference voltage, the pass transistor’s gate is pulled lower,  
which allows more current to pass to the output and increase the  
LP2985-XX  
V
1
3
IN  
5
V
OUT  
BIAS  
CURRENT  
LIMIT  
ON/OFF  
DRIVER  
REFERENCE  
NOISE  
GND  
4
2
THERMAL  
SHUTDOWN  
SL01545  
Figure 3. Block diagram.  
5
2001 Oct 03  

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