|
|
PDF L1188 Data sheet ( Hoja de datos )
| Número de pieza | L1188 | |
| Descripción | 800mA CMOS LDO | |
| Fabricantes | Unisonic Technologies | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de L1188 (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
|
No Preview Available !
UNISONIC TECHNOLOGIES CO., LTD
L1188
Preliminary
800mA CMOS LDO
DESCRIPTION
As UTC LDO, the features of the UTC L1188 include low
quiescent current and very low dropout voltage.
In order prevent form the bad operating conditions, there are
internal thermal shutdown and current fold-back. For stably
operation, the UTC L1188 should be connected to an output
capacitance of 2.2μF or larger.
The UTC L1188 can be an ideal for battery applications, such as
portable electronics, wireless devices, cordless phones, PC
peripherals and battery powered widgets.
FEATURES
* Extra Low Dropout Voltage
* Output Current: 800mA (Guaranteed)
* Output Voltage Accuracy:±1.5%
* Quiescent Current: 30μA
* Internal Over-Temperature Shutdown
* With Current limiting
* Internal Short Circuit Current Fold-Back
* Pre-set Output Voltages In Factory
* Very Low Temperature Coefficient
ORDERING INFORMATION
Ordering Number
Package
L1188G-xx-AA3-A-R
SOT-223
Note: Pin Assignment: G:GND O:VOUT I:VIN
xx: Output Voltage, refer to Marking Information.
Pin Assignment
123
GO
I
CMOS IC
1
SOT-223
Packing
Tape Reel
www.DataSheet4U.com
www.unisonic.com.tw
Copyright © 2010 Unisonic Technologies Co., Ltd
1 of 6
QW-R502-324.c
1 page  
L1188
Preliminary
TYPICAL APPLICATION CIRCUIT
CMOS IC
APPLICATION INFORMATION
1. Detailed Description
Internal circuits include: a PMOS pass transistor, voltage reference, error amplifier, over-current protection, and
thermal shutdown.
The data through the error amplifier, over-current shutdown, and thermal protection circuits, then to the
P-channel pass transistor.
As soon as the junction temperature exceeds 150°C or the current exceeds 900mA, over-current and thermal
shutdown circuits start working. When the junction temperature drops below 120°C, normal operation is restored.
When the load exceeds the rated output current, for preventing the over stress, the chip switches from voltage
mode to current mode.
2. External Information
When considering the external capacitors, the L1188 is stable with an output capacitor to ground of 2.2μF or
greater. As we know, the ceramic capacitors have the lowest ESR but can offer the best AC performance; the
aluminum electrolytic capacitors exhibit the highest ESR but offer the poorest AC response. And also large value
ceramic capacitors are expensive. Consider all the situation, the best way is to parallel a 0.1μF ceramic capacitor with
a 10μF Aluminum Electrolytic (low ESR, high capacitance, and low overall cost).
For better beneficial effecting, the input capacitor should be at least 0.1μF.
www.DataSheet4U.com
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 6
QW-R502-324.c
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet L1188.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| L11810 | 1A CMOS LOW DROPOUT VOLTAGE | Unisonic Technologies |
| L11815A | 1.5A CMOS LDO | Unisonic Technologies |
| L11815B | 1.5A CMOS LDO | Unisonic Technologies |
| L11830 | 3A LOW DROPOUT LINEAR REGULATOR | Unisonic Technologies |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |