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PDF LR9193 Data sheet ( Hoja de datos )
| Número de pieza | LR9193 | |
| Descripción | CMOS LDO Regulator | |
| Fabricantes | LRC | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LR9193 (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
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300mA Ultra-low Noise, Ultra-Fast
CMOS LDO Regulator
LESHAN RADIO COMPANY, LTD.
LR9193
FEATURES
Ultra-low Noise for RF Application
Ultra-Fast Respose in Line/Load Transient
Quick Start-Up (Typically 50S)
<0.01A Standby Current When Shutdown.
Low Dropout:220mV@300mA
Wide Operating Voltage Ranges:2.5V to
5.5V
TTL-logic-Controlled Shutdown Input
Low Temperature Coefficient
Current Limiting Protection
Thermal Shutdown Protection
Only 1F Output Capacitor Required for
Stability
High Power Supply Rejection Ratio
Custom Voltage Available
Fast output discharge
Available in 5-Lead SOT-23 and SC-70
Package
APPLICATIONS
Cellular and Smart Phones
Battery-Powered Equipment
Laptop, Palmtops,Notebook Computers
Hand-Held Instruments
ORDERING INFORMATION
LR9193-XX XX
PCMCIA Cards
MP3 Players
Portable Information Appliances
DESCRIPTION
The LR9193 is designed for portable RF and
wireless applications with demanding
performance and space requirements. The
LR9193 performance is optimized for battery-
powered systems to deliver ultra low noise
and low quiescent current. A noise bypass
pin is available for further reduction of output
noise. Regulator ground current increases
only slightly in dropout, further prolonging the
battery life. The LR9193 also works with low-
ESR ceramic capacitors, reducing the
amount of board space necessary for power
applications, critical in hand-held wireless
devices. The LR9193 consumes less than
0.01μA in shutdown mode and has fast turn-
on time less than 50μs. The other features
include ultra low dropout voltage, high output
accuracy, current limiting protection, and high
ripple rejection ratio. Available in the 5-lead of
SC-70,SOT-23,packages.
TYPICAL APPLICATION
Package:
RN:SOT-23-5
URN:SC-70-5
3.3V-5.5V
C1
1uF
0
Chip Enable
0
1 VIN
VOUT 5
2 GND LR9193
3 EN
BP 4
Output Voltage:
12:1.2V
15:1.5V
18:1.8V
28:2.8V
33::3.3V
CT: custom fixed output(50mv step)
AD:Adjustable
R1
100k
0
2.8V
C2
1uF
0
C3
22nF
0
1/9
1 page  
LESHAN RADIO COMPANY, LTD.
Typical Performance Characteristics
Dropout Voltage vs. Load Current
300
CIN=COUT=1uF
TA=25C
250
200
150
100
50
0
0 50 100 150 200 250 300
Load Current(mA)
PSRR
0
VIN=4V to 5V
-10 CIN=COUT=1uF,X7R
-20
-30
-40
-50
-60
-70
-80
-90
10
100
1000
10000
Frequency(Hz)
IOUT=100mA
IOUT=200mA
100000
1000000
5/9
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet LR9193.PDF ] | |
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