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YOBON TECHNOLOGIES
YOBON TECHNOLOGIES

YB1253 Datasheet Preview

YB1253 Datasheet

High PSRR LDO Regulator

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YB1253 pdf
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




YOBON TECHNOLOGIES
YOBON TECHNOLOGIES

YB1253 Datasheet Preview

YB1253 Datasheet

High PSRR LDO Regulator

No Preview Available !

YB1253 pdf
YB1253
300mA, Low Power, High PSRR LDO Regulator
Pin Configuration
SOT-89
123
GND VIN VOUT
SOT-89R
12
VOUT GND
3
VIN
VIN
3
SOT-23
12
GND VOUT
Figure 2 : pin configuration
VOUT
5
NC
4
SOT-25
12
VIN GND
3
EN
Pin Description
Table 1
Pin Name
Pin Function
VIN Unregulated Input Supply. Bypass with a capacitor to GND
GND Ground pin
EN Pull high to enable the regulator
NC
VOUT
No connection is required
Regulated Output Voltage
YB1253 Rev. 1.5
www.yobon.com.tw
2




YOBON TECHNOLOGIES
YOBON TECHNOLOGIES

YB1253 Datasheet Preview

YB1253 Datasheet

High PSRR LDO Regulator

No Preview Available !

YB1253 pdf
YB1253
300mA, Low Power, High PSRR LDO Regulator
Ordering Information
YB1253
X
Output Voltage
120 : 1.2V
130 : 1.3V
:
360 : 3.6V
X : fixed
Package Type
ST23 : SOT-23
ST25 : SOT-25
ST89 : SOT-89
ST8R : SOT-89R
*Order example :
YB1253 ST89X250 for YB1253 of
2.5V output and SOT-89 package
*Shipping Quantity :
SOT-23 : 3000 units tape & reel
SOT-25 : 3000 units tape & reel
SOT-89 : 1000 units tape & reel
SOT-89R : 1000 units tape & reel
*Only green package
Marking Information
Absolute Maximum Ratings (Note 1)
Supply Voltage ................................-0.3V to 6.0V
Output Voltage .......................-0.3V to (VIN+0.3V)
Output Short-Circuit Duration.................... Infinite
Junction Temperature Range ................... +150
Storage Temperature Range...... -65to +150
Lead Temperature.................................... +250
ESD Susceptibility (HBM)…………… ………2KV
ESD Susceptibility (MM) ............................. 200V
Recommended Operating Conditions
(Note 2)
Input Supply Voltage.........................2V to 5.5V
Operating Temperature..............-40to +85
Thermal Information (Note 3)
Thermal Resistance (SOT-23/25, θJA).280/W
Thermal Resistance (SOT-89, θJA)…...180/W
Internal Power Dissipation (SOT-23/25, PD)……0.4W
Internal Power Dissipation (SOT-89, PD)0.55W
Note:
1. Exceeding these ratings may damage the device.
2. The device is not guaranteed to function outside of its operating conditions.
3. θJA is measured in free air at TA = 25on a low effective thermal conductivity board.
YB1253 Rev. 1.5
www.yobon.com.tw
3




Part Number YB1253
Description High PSRR LDO Regulator
Maker YOBON TECHNOLOGIES
Total Page 11 Pages
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