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PDF YB1253 Data sheet ( Hoja de datos )
| Número de pieza | YB1253 | |
| Descripción | High PSRR LDO Regulator | |
| Fabricantes | YOBON TECHNOLOGIES | |
| Logotipo |  |
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YB1253
300mA, Low Power, High PSRR LDO Regulator
Description
The YB1253 is a series of ultra-low-noise,
high PSRR, and low quiescent current low
dropout (LDO) linear regulators with 2.0%
output voltage accuracy. The YB1253
regulators achieve a low 300mA dropout at
300mA load current of 3.6V output and are
available in voltages ranging from 1.2V to
3.6V with 0.1 V per step (custom voltage is
considerate at request).
The YB1253 regulators are optimized to
work with low-ESR and low cost ceramic
capacitors, reducing the amount of board
space critical in portable devices. The
YB1253 requires only 1.0μF output
capacitor for stability with any load and
consumes less than 1μA in shutdown
mode.
Built-in thermal shutdown and short-circuit
current limit offer secure protection against
fault operation. YB1253 regulators also
include an auto-discharge function. The
YB1253 regulators are available in SOT-23
/ SOT-25 / SOT-89 packages.
Features
• High Accuracy Output Voltage : + 2%
• Wide Output Voltage Range : 1.2~3.6V
• Ultra-Low-Noise Low-Drop-Out
• Typical Output Current : 300 mA
• Low Quiescent Current: ~10μA
• 300mV Dropout at 300mA 3.6V Output
• Stable with 1.0μF Ceramic Capacitor
• Only Need Input and Output Capacitors
• Thermal Protection Shutdown
• Auto discharge function
• Green Package (RoHS) Available
Applications
• PDA, Notebook, PC Computers
• DSC, Cellular phones
• PCMCIA Cards, PC Cameras
• USB Based Portable Devices
• GSM/GPRS/3G RF Transceiver
• Wireless LANs
• Bluetooth Portable Radios
• Battery-Powered Devices
Typical Application Circuitry
Input
VIN VOUT
Output
Cin=1uF
ON
OFF
YB1253
EN
GND
Cout=1uF
Figure 1-1 : SOT-25 application circuit
Input
Cin=1uF
VIN VOUT
Output
YB1253 Cout=1uF
GND
Figure 1-2 : SOT-23 application circuit
YB1253 Rev. 1.5
www.yobon.com.tw
1
1 page  
YB1253
300mA, Low Power, High PSRR LDO Regulator
Typical Characteristics
At TA=25℃, VIN=(VOUT+1V), CIN=COUT=1.0μF, VEN=VIN, unless otherwise noted.
Output Curent VS Dropout voltage
1000
900
800
700
600
500
400
300
200
100
0
0
Iout= 300mA
1.3V
1.8V
3.3V
50 100 150 200 250
Output current (mA)
300
350
Input voltage VS Quiescent current
45
40
35
30
25
20
15
10
5
0
2
Iout= 0
3.3V
1.8V
2.5 3 3.5 4 4.5 5 5.5
input voltage (V)
Output voltage VS Temperature
3.5
3
Iout= 300mA
2.5
2
1.5
1
0.5
0
50 60 70
3.3V
1.8V
80 90 100 110 120 130
Temperature (degree)
Output voltage VS Output current
3.5
3
2.5
2
1.5
1
0.5
0
0
3.3V
1.8V
50 100 150 200 250
Output current (mA)
300
Startup delay time
Rout = 10Ω
Vout = 3.3V
EN
Vout
EN
Vout
Shutdown delay time
Rout = 10Ω
Vout = 3.3V
YB1253 Rev. 1.5
www.yobon.com.tw
5
5 Page 
YB1253
300mA, Low Power, High PSRR LDO Regulator
SOT-89 Package Information
E1
E
L
YB1253 Rev. 1.5
milimeters
MIN.
MAX.
A 1.40
1.60
b 0.36
0.48
b1 0.44
0.56
b2 1.50
1.83
C 0.35
0.44
D 4.40
4.60
E 2.29
2.60
E1 3.94
4.25
e 1.50 BSC.
e1 3.00 BSC.
L 0.89
1.20
Inches
MIN.
MAX.
.055
.063
.014
.019
.017
.022
.059
.072
.014
.017
.173
.181
.090
.102
.155
.167
.059 BSC.
.118 BSC.
.035
.047
www.yobon.com.tw
11
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| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet YB1253.PDF ] | |
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