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LP2951-30DRGR 数据手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
稳压芯片
封装:
WSON-8
描述:
具有关断功能可调节微功耗电压稳压器 ADJUSTABLE MICROPOWER VOLTAGE REGULATORS WITH SHUTDOWN
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
引脚图在P3Hot
典型应用电路图在P16P17P18
原理图在P12P13
封装尺寸在P20P21P23P24
标记信息在P20P21
封装信息在P19P20P21P22P23P24
技术参数、封装参数在P4P5
应用领域在P1P32
电气规格在P5P6
导航目录
LP2951-30DRGR数据手册
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0
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-40 -25 -10 5 20 35 50 65 80 95 110 125
T
A
– Temperature – °C
(VIN – VOUT) – Dropout Voltage – mV
R
L
= 100 µA
R
L
= 100 mA
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L
I
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LP2950
,
LP2951
SLVS582I –APRIL 2006–REVISED NOVEMBER 2014
LP295x Adjustable Micropower Voltage Regulators with Shutdown
1 Features 2 Applications
1
• Wide Input Range: Up to 30 V
• Applications with High-Voltage Input
• Rated Output Current of 100 mA • Power Supplies
• Low Dropout: 380 mV (Typ) at 100 mA
3 Description
• Low Quiescent Current: 75 μA (Typ)
The LP2950 and LP2951 devices are bipolar, low-
• Tight Line Regulation: 0.03% (Typ)
dropout voltage regulators that can accommodate a
• Tight Load Regulation: 0.04% (Typ)
wide input supply-voltage range of up to 30 V. The
easy-to-use, 3-pin LP2950 is available in fixed-output
• High V
O
Accuracy
voltages of 5 V, 3.3 V, and 3 V. However, the 8-pin
– 1.4% at 25°C
LP2951 is able to output either a fixed or adjustable
– 2% Over Temperature
output from the same device. By tying the OUTPUT
• Can Be Used as a Regulator or Reference
and SENSE pins together, and the FEEDBACK and
V
TAP
pins together, the LP2951 outputs a fixed 5 V,
• Stable With Low ESR (>12 mΩ) Capacitors
3.3 V, or 3 V (depending on the version).
• Current- and Thermal-Limiting Features
Alternatively, by leaving the SENSE and V
TAP
pins
• LP2950 Only (3-Pin Package)
open and connecting FEEDBACK to an external
resistor divider, the output can be set to any value
– Fixed-Output Voltages of 5 V, 3.3 V, and 3 V
between 1.235 V to 30 V.
• LP2951 Only (8-Pin Package)
– Fixed- or Adjustable-Output Voltages:
Device Information
(1)
5 V/ADJ, 3.3 V/ADJ, and 3 V/ADJ
PART NUMBER PACKAGE BODY SIZE (NOM)
– Low-Voltage Error Signal on Falling Output
LP2950 TO-92 (3) 4.83 mm x 4.83 mm
– Shutdown Capability
SOIC (8) 4.90 mm x 3.90 mm
LP2951
– Remote Sense Capability for Optimal Output SON (8) 3.00 mm x 3.00 mm
Regulation and Accuracy
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Dropout Voltage vs Temperature
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
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