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參數(shù)資料
| 型號(hào)： | LT3023 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Dual 100mA, Low Dropout, Low Noise, Micropower Regulator |
| 中文描述： | 雙100mA的電流，低壓差，低噪聲，微功耗穩(wěn)壓器 |
| 文件頁數(shù)： | 8/16頁 |
| 文件大小： | 581K |
| 代理商： | LT3023 |
8
LT3023
3023f
SHDN1/SHDN2 (Pins 7/9):
Shutdown. The SHDN1/SHDN2
pins are used to put the corresponding channel of the
LT3023 regulator into a low power shutdown state. The
output will be off when the pin is pulled low. The
SHDN1/SHDN2 pins can be driven either by 5V logic or
open-collector logic with pull-up resistors. The pull-up
resistors are required to supply the pull-up current of the
open-collector gates, normally several microamperes,
and the SHDN1/SHDN2 pin current, typically 1
μ
A. If
unused, the pin must be connected to V
IN
. The device will
not function if the SHDN1/SHDN2 pins are not connected.
IN (Pin 8):
Input. Power is supplied to the device through
the IN pin. A bypass capacitor is required on this pin if the
device is more than six inches away from the main input
filter capacitor. In general, the output impedance of a
battery rises with frequency, so it is advisable to include a
bypass capacitor in battery-powered circuits. A bypass
capacitor in the range of 1
μ
F to 10
μ
F is sufficient. The
LT3023 regulator is designed to withstand reverse volt-
ages on the IN pin with respect to ground and the OUT pin.
In the case of a reverse input, which can happen if a battery
is plugged in backwards, the device will act as if there is a
diode in series with its input. There will be no reverse
current flow into the regulator and no reverse voltage will
appear at the load. The device will protect both itself and
the load.
Exposed Pad (Pin 11):
Ground. This pin must be soldered
to the PCB and electrically connected to ground.
GND (Pin 3):
Ground.
ADJ1/ADJ2 (Pins 4/2):
Adjust Pin. These are the inputs to
the error amplifiers. These pins are internally clamped to
±
7V. They have a bias current of 30nA which flows into the
pin (see curve of ADJ1/ADJ2 Pin Bias Current vs Tempera-
ture in the Typical Performance Characteristics section).
The ADJ1 and ADJ2 pin voltage is 1.22V referenced to
ground and the output voltage range is 1.22V to 20V.
BYP1/BYP2 (Pins 5/1):
Bypass. The BYP1/BYP2 pins are
used to bypass the reference of the LT3023 regulator to
achieve low noise performance from the regulator. The
BYP1/BYP2 pins are clamped internally to
±
0.6V (one
V
BE
) from ground. A small capacitor from the correspond-
ing output to this pin will bypass the reference to lower the
output voltage noise. A maximum value of 0.01
μ
F can be
used for reducing output voltage noise to a typical 20
μ
V
RMS
over a 10Hz to 100kHz bandwidth. If not used, this pin
must be left unconnected.
OUT1/OUT2 (Pins 6/10):
Output. The outputs supply
power to the loads. A minimum output capacitor of 1
μ
F is
required to prevent oscillations. Larger output capacitors
will be required for applications with large transient loads
to limit peak voltage transients. See the Applications
Information section for more information on output ca-
pacitance and reverse output characteristics.
PIU
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| LT3023EDD#PBF | 功能描述:IC REG LDO ADJ .1A 10-DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 產(chǎn)品培訓(xùn)模塊:MIC5365/66 Ultra-small LDO Regulators 標(biāo)準(zhǔn)包裝:1 系列:- 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):正，固定式 輸出電壓:3V 輸入電壓:最高 5.5V 電壓 - 壓降（標(biāo)準(zhǔn)）:0.155V @ 150mA 穩(wěn)壓器數(shù)量:1 電流 - 輸出:150mA 電流 - 限制（最小）:200mA 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:4-UDFN 裸露焊盤，4-TMLF? 供應(yīng)商設(shè)備封裝:4-TMLF?（1x1） 包裝:Digi-Reel® 其它名稱:576-3192-6 |
| LT3023EDD#PBF | 制造商:Linear Technology 功能描述:IC VOLT REGULATOR ADJUSTABLE +1.2 TO |
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