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PDF LN1134 Data sheet ( Hoja de datos )
| Número de pieza | LN1134 | |
| Descripción | High Speed Low Dropout Middle Current Voltage Regulators | |
| Fabricantes | Natlinear | |
| Logotipo |  |
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LN1134
High Speed Low Dropout Middle Current Voltage Regulators
■ General Description
The LN1134 series are highly precise, low noise, positive
voltage LDO regulators manufactured using CMOS
processes. The series achieves high ripple rejection and
low dropout and consists of a standard voltage source, an
error correction, current limiter and a phase compensation
circuit plus a driver transistor. Output voltage is selectable
in 100mV increments within a range of 1.5V ~ 5.0V. The
series is also compatible with low ESR ceramic capacitors
which give added output stability. This stability can be
maintained even during load fluctuations due to the
excellent transient response of the series.
The current limiter's feedback circuit also operates as a
short protect for the output current limiter and the output
pin The CE function enables the output to be turned off,
resulting in greatly reduced power consumption.
■ Features
Output Voltage Range: 1.0V to 5.0V (selectable in
100mV steps)
Highly Accurate: ± 2%
Dropout Voltage: 300mV @ 100mA (3.0V type)
■ Ordering Information
LN1134 ①②③④⑤⑥
High Ripple Rejection: 70dB (10 kHz)
Low Power Consumption: 70μA (TYP.)
Maximum Output Current : 300mA
Standby Current : less than 2μA
Internal protector: current limiter and short protector
■ Applications
Mobile phones
Cordless phones
Cameras, Video cameras
Portable games
Portable AV equipment
Reference voltage
Battery powered equipment
■ Package
SOT-23-5L
DFNWB1.8×2-6L
SOT-353/SC70-5
SOT-343
Designator
①
②③
④
Symbol
A
B
C
D
10-60
2
A
Description
CE Pin Logic :
Active 'High' (pull-down resistor built in)
Active 'High' (no pull-down resistor built
in)
Active 'Low' (pull-up resistor built in)
Active 'Low' (no pull-up resistor built in)
Output Voltage:
e.g. 20 = 2.0V 30 = 3.0V etc.
Output Voltage : 100mV increments
e.g. ②=3, ③=8, ④=2 3.8V
Output Voltage : 50mV increments
e.g. ②=3, ③=8, ④=A 3.85V
Designator
⑤
⑥
Symbol
M
Description
Package Type :
SOT-23-5L
K SOT-353/SC70-5
C SOT-343
D DFNWB1.8×2-6L
Device Orientation :
Embossed Tape :
R
Standard Feed
Embossed Tape :
L
Reverse Feed
Rev.1.0 — Aug. 14, 2012
1
www.natlinear.com
Free Datasheet http://www.nDatasheet.com
1 page  
■ Absolute Maximum Ratings
LN1134
Parameter
Input Voltage
Output Current
Symbol
VIN
VON/OFF
VOUT
Maximum Rating
VSS-0.3～VSS+8
VSS-0.3～VIN+0.3
VSS-0.3～VIN+0.3
SOT-23-5
400
Unit
V
Power Dissipation
PD
Operating Ambient Temperature
Storage Temperature
Topr
Tstg
SOT-353/SC70-5,SOT-343
DFNWB1.8×2-6L
-40～+85
-40～+125
250 mW
100
°C
Caution: The absolute maximum ratings are rated values exceeding which the product could suffer physical damage.
These values must therefore not be exceeded under any conditions.
■ Typical Application Circuit
VIN
ON/OFF
C1
1uF
Common
VIN VOUT
CE
VSS (NC)
LN1134
VOUT
C2
2.2uF
Common
Caution: The above connection diagram and constant will not guarantee successful operation. Perform thorough
evaluation using the actual application to set the constant.
■ Application Conditions
Input capacitor (CIN): 1.0µF or more
Output capacitor (CL): 1.0µF or more (tantalum capacitor)
Caution A general series regulator may oscillate, depending on the external components selected. Check that no
oscillation occurs with the application using the above capacitor.
■ Test Circuits
Circuit 1
Rev.1.0 — Aug. 14, 2012
5
Circuit 2
www.natlinear.com
Free Datasheet http://www.nDatasheet.com
5 Page 
SOT-343
LN1134
Rev.1.0 — Aug. 14, 2012
11
www.natlinear.com
Free Datasheet http://www.nDatasheet.com
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet LN1134.PDF ] | |
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