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LD2985BM31R の電気的特性と機能

LD2985BM31RのメーカーはSTMicroelectronicsです、この部品の機能は「Very low drop and low noise voltage regulator」です。


製品の詳細 ( Datasheet PDF )

部品番号 LD2985BM31R
部品説明 Very low drop and low noise voltage regulator
メーカ STMicroelectronics
ロゴ STMicroelectronics ロゴ 




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LD2985BM31R Datasheet, LD2985BM31R PDF,ピン配置, 機能
LD2985
Very low drop and low noise voltage regulator with inhibit function
SOT23-5L
Features
Very low dropout voltage (280 mV at 150 mA
and 7 mV at 1 mA load)
Very low quiescent current (2 mA typ. at 150
mA load and 80 µA at no load)
Output current up to 150 mA
Logic controlled electronic shutdown
Output voltage of 1.8, 2.5, 2.8, 3, 3.1, 3.3, 5 V
Internal current and thermal limit
Low output noise voltage 30 mVrms
Small package SOT23-5L
Temperature range: - 40°C to 125 °C
Description
The LD2985 is a 150 mA fixed output voltage
regulator. The ultra low drop voltage and the low
quiescent current make them particularly suitable
for low noise, low power applications, and in
battery powered systems. In sleep mode
quiescent current is less than 1 µA when INHIBIT
pin is pulled low. Shutdown logic control function
is available on pin 3 (TTL compatible). This
means that when the device is used as local
regulator, it is possible to put a part of the board in
standby, decreasing the total power consumption.
An external capacitor, CBYP = 10 nF, connected
between bypass pin and GND reduces the noise
Datasheet - production data
to 30 µVrms. Typical application are in cellular
phone, palmtop laptop computer, personal digital
assistant (PDA), personal stereo, camcorder and
camera.
Table 1. Device summary
Order codes
Output voltages
LD2985BM18R
1.8 V
LD2985BM25R
LD2985BM28R
2.5 V
2.8 V
LD2985BM30R
3.0 V
LD2985BM31R
3.1 V
LD2985BM33R
3.3 V
LD2985BM50R
5.0 V
November 2013
This is information on a product in full production.
DocID8189 Rev 13
1/18
www.st.com
18

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LD2985BM31R pdf, ピン配列
LD2985
1 Diagram
Figure 1. Schematic diagram
Diagram
DocID8189 Rev 13
3/18


3Pages


LD2985BM31R 電子部品, 半導体
Electrical characteristics
4 Electrical characteristics
LD2985
TJ = 25 °C, VI = VO + 1 V, IO = 50 mA, VINH= 2 V, CI = CO = 1 µF, unless otherwise specified.
Symbol
Parameter
Table 5. Electrical characteristics
Test conditions
VOP Operating input voltage
VI = 2.5 V
VO Output voltage
IO = 1 to 150 mA
IO = 1 to 150 mA, TJ= -40 to 125 °C
VI = 2.8 V
VO Output voltage
IO = 1 to 150 mA
IO = 1 to 150 mA, TJ= -40 to 125 °C
VI = 3.5 V
VO Output voltage
IO = 1 to 150 mA
IO = 1 to 150 mA, TJ= -40 to 125 °C
VI = 3.5 V
VO Output voltage
IO = 1 to 150 mA
IO = 1 to 150 mA, TJ= -40 to 125 °C
VI = 3.8 V
VO Output voltage
IO = 1 to 150 mA
IO = 1 to 150 mA, TJ= -40 to 125 °C
VI = 3.85 V
VO Output voltage
IO = 1 to 150 mA
IO = 1 to 150 mA, TJ= -40 to 125 °C
VI = 4.0 V
VO Output voltage
IO = 1 to 150 mA
IO = 1 to 150 mA, TJ= -40 to 125 °C
VI = 4.1 V
VO Output voltage
IO = 1 to 150 mA
IO = 1 to 150 mA, TJ= -40 to 125 °C
VI = 4.2 V
VO Output voltage
IO = 1 to 150 mA
IO = 1 to 150 mA, TJ= -40 to 125 °C
VI = 4.3 V
VO Output voltage
IO = 1 to 150 mA
IO = 1 to 150 mA, TJ= -40 to 125 °C
Min. Typ. Max. Unit
2.5 16
1.463 1.5 1.537
1.455
1.545
1.440
1.560
1.755 1.8 1.845
1.746
1.854
1.728
1.872
2.437 2.5 2.562
2.425
2.575
2.4 2.6
2.633 2.7 2.767
2.619
2.781
2.592
2.808
2.73 2.8 2.87
2.716
2.884
2.688
2.912
2.779 2.85 2.921
2.764
2.935
2.736
2.964
2.925 3.0 3.075
2.91 3.09
2.88 3.12
3.023 3.1 3.177
3.007
3.193
2.976
3.224
3.120 3.2 3.28
3.104
3.296
3.072
3.328
3.218 3.3 3.382
3.201
3.399
3.168
3.432
V
V
V
V
V
V
V
V
V
V
V
6/18 DocID8189 Rev 13

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部品番号部品説明メーカ
LD2985BM31R

Very low drop and low noise voltage regulator

STMicroelectronics
STMicroelectronics


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