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IFX1763 の電気的特性と機能

IFX1763のメーカーはInfineonです、この部品の機能は「Wide Input Range Low Noise 500mA LDO」です。


製品の詳細 ( Datasheet PDF )

部品番号 IFX1763
部品説明 Wide Input Range Low Noise 500mA LDO
メーカ Infineon
ロゴ Infineon ロゴ 




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IFX1763 Datasheet, IFX1763 PDF,ピン配置, 機能
IFX1763
Wide Input Range Low Noise 500mA LDO
Data Sheet
Rev. 1.1, 2014-10-30
Standard Power

1 Page





IFX1763 pdf, ピン配列
IFX1763
Overview
The IFX1763 is a micropower, low noise, low dropout voltage regulator. The device is capable of supplying an
output current of 500 mA with a dropout voltage of 320 mV. Designed for use in battery-powered systems, the low
quiescent current of 30 µA makes it an ideal choice.
A key feature of the IFX1763 is its low output noise. By adding an external 0.01 µF bypass capacitor output noise
values down to 24 µVRMS over a 10 Hz to 100 kHz bandwidth can be reached. The IFX1763 voltage regulator is
stable with output capacitors as small as 3.3 µF. Small ceramic capacitors can be used without the series
resistance required by many other regulators. Its internal protection circuitry includes reverse battery protection,
current limiting and reverse current protection. The IFX1763 comes as fixed output voltage 3.3 V as well as
adjustable device with a 1.22 V reference voltage. It is available in a DSO-8 Exposed Pad and as well as in a
TSON-10 Exposed Pad package.
Data Sheet
3 Rev. 1.1, 2014-10-30


3Pages


IFX1763 電子部品, 半導体
3.2 Pin Definitions and Functions
IFX1763
Pin Configuration
Pin Symbol Function
1 (DSO-8 EP) OUT
1,2 (TSON-10)
Output. Supplies power to the load. For this pin a minimum output capacitor of
3.3 µF is required to prevent oscillations. Larger output capacitors may be
required for applications with large transient loads in order to limit peak voltage
transients or when the regulator is applied in conjunction with a bypass capacitor.
For more details please refer to the section “Application Information” on
Page 24.
2 (DSO-8 EP)
4 (TSON-10)
SENSE
(fix voltage
version)
Output Sense. For the fixed voltage version the SENSE pin is the input to the
error amplifier. This allows to achieve an optimized regulation performance in
case of small voltage drops Rp that occur between regulator and load. In
applications where such drops are relevant they can be eliminated by connecting
the SENSE pin directly at the load. In standard configurations the SENSE pin can
be connected directly to the OUT pin. For further details please refer to the section
“Kelvin Sense Connection” on Page 25.
2 (DSO-8 EP)
4 (TSON-10)
ADJ Adjust. For the adjustable version the ADJ pin is the input to the error amplifier.
(adjustable The ADJ pin voltage is 1.22V referenced to ground and allows an output voltage
version)
range from 1.22V to 20V - VDR. The ADJ pin is internally clamped to ±7 V. Please
note that the bias current of the ADJ pin is flowing into the pin.1)
3, 7 (DSO-8 EP) NC
3, 8 (TSON-10)
No Connect. The NC Pins have no connection to any internal circuitry. Connect
either to GND or leave open.
4 (DSO-8)
5 (TSON-10)
BYP
Bypass. The BYP pin is used to bypass the reference of the IFX1763 to achieve
low noise performance. The BYP-pin is clamped internally to ±0.6 V (i.e. one VBE).
A small capacitor from the output to the BYP pin will bypass the reference to lower
the output voltage noise2). If not used this pin must be left unconnected.
5 (DSO-8 EP)
7 (TSON-10)
EN
Enable. With the EN pin the IFX1763 can be put into a low power shutdown state.
The output will be off when the EN is pulled low. The EN pin can be driven by 5V
logic or open-collector logic with pull-up resistor. The pull-up resistor is required
to supply the pull-up current of the open-collector gate3) and the EN pin current4).
Please note that if the EN pin is not used it must be connected to VIN. It must not
be left floating.
6 (DSO-8 EP)
6,(TSON-10)
GND
Ground. For the ADJ version connect the bottom of the output voltage setting
resistor divider directly to the GND pin for optimum load regulation performance.
8 (DSO-8 EP) IN
9, 10 (TSON-10)
Input. Via the input pin IN the power is supplied to the device. A capacitor at the
input pin is required if the device is more than 6 inches away from the main input
filter capacitor or if bigger inductance is present at the IN pin5). The IFX1763 is
designed to withstand reverse voltages on the Input pin with respect to GND and
Output. In the case of reverse input (e.g. due to a wrongly attached battery) the
device will act as if there is a diode in series with its input. In this way there will be
no reverse current flowing into the regulator and no reverse voltage will appear at
the load. Hence, the device will protect both - the device itself and the load.
9 (DSO-8 EP)
11 (TSON-10)
Tab
Exposed Pad. To ensure proper thermal performance,solder Pin 11 (exposed
pad) of TSON-10 to the PCB ground and tie directly to Pin 6. In the case of DSO-
8 EP as well solder exposed pad (Pin 9) to the PCB ground and tie directly to
Pin 6.
Data Sheet
6 Rev. 1.1, 2014-10-30

6 Page



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部品番号部品説明メーカ
IFX1763

Wide Input Range Low Noise 500mA LDO

Infineon
Infineon


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