YB1210 LDO Regulator Datasheet

YB1210 Datasheet, PDF, Equivalent


Part Number

YB1210

Description

High PSRR LDO Regulator

Manufacture

YOBON TECHNOLOGIES

Total Page 12 Pages
Datasheet
Download YB1210 Datasheet


YB1210
YB1210 – 300mA
Ultra-Low-Noise, High PSRR LDO Regulator
Description
The YB1210 family consists of a series of
300mA ultra-low-noise, low dropout (LDO)
linear regulators especially designed for
battery-powered RF and wireless
applications. The YB1210 regulator
achieves a low 450mV dropout at 250mA
load current of 3.3V output, ultra-low output
voltage noise of 15µVrms and PSRR of
57dB at 1KHz.
The YB1210 regulators are also optimized
to work with low-ESR and low cost ceramic
capacitors reducing the amount of board
space critical in hand-held devices. The
YB1210 requires only 0.47 µF output
capacitor for stability with any load. The
YB1210 consumes less than 1µA in
shutdown mode.
Other features include high output voltage
accuracy and current limiting protection.
The YB1210 regulators are available in
SOT-23 / SOT-25 / SOT-89 packages.
Features
„ High Accuracy +-2% Output Voltage
„ Ultra-Low-Noise Low-Drop-Out
Regulator with 1.8/2.5/2.6/2.8/3.0V/3.3V
Preset Outputs
„ Stable with 0.47µF Ceramic Capacitor
for Any Load
„ Allowable Output Current: 300mA
„ Low Quiescent Current: ~90µA
„ 450mV Dropout at 250mA Load (3.3V)
„ Only Need Input and Output Capacitors
„ Power Saving Shutdown Mode (<1µA)
„ Thermal Protection Shutdown
„ Built-In Internal Soft-Start
„ Output Short-circuit Current Limit
Protection
„ Green package (RoHS) available
Applications
„ PDA, Palmtops and Notebook Computers
„ DSC, Handset Camera Modules
„ PCMCIA Cards, PC Cameras
„ USB Based Portable Devices (MP3, PMP)
„ GSM/GPRS/3G RF Transceiver Modules
„ Wireless LANs
„ Bluetooth Portable Radios
Typical Application Circuitry
INPUT
Cin=0.47uF
ON
OFF
YB1210
IN OUT
OUTPUT PRESET
Cout=0.47uF
EN
NC or
Bypass
GND
Cbypass
=30nF
YB1210 MRev.1.5
Figure 1-1. SOT-25 application circuit
www.yobon.com.tw
1

YB1210
YB1210 – 300mA
Ultra-Low-Noise, High PSRR LDO Regulator
Pin Configuration
Figure 1-2. SOT-23 / SOT-89 application circuit
Pin Description
Table 1
Pin Name
SOT-25 Description
1 IN Unregulated Input Supply
Pin Name
SOT-89 Description
1 GND Ground Pin
2 GND Ground Pin
2 IN Unregulated Input Supply
3 EN Pull High To Enable The Regulator 3 OUT Regulated Voltage Output
No Connection For Normal Pin Name
SOT-89R Description
4
N.C. or Operation Or Noise Bypass For
Bypass Ultra-Low-Noise
1
OUT Regulated Voltage Output
Operation By A 30nF Cap. To GND 2 GND Ground Pin
5 OUT Regulated Voltage Output
3 IN Unregulated Input Supply
Pin Name
SOT-23 Description
1 GND Ground Pin
2 OUT Regulated Voltage Output
3 IN Unregulated Input Supply
YB1210 MRev.1.5
www.yobon.com.tw
2


Features YB1210 – 300mA Ultra-Low-Noise, High P SRR LDO Regulator Description The YB12 10 family consists of a series of 300mA ultra-low-noise, low dropout (LDO) lin ear regulators especially designed for battery-powered RF and wireless applica tions. The YB1210 regulator achieves a low 450mV dropout at 250mA load current of 3.3V output, ultra-low output volta ge noise of 15µVrms and PSRR of 57dB a t 1KHz. The YB1210 regulators are also optimized to work with low-ESR and low cost ceramic capacitors reducing the am ount of board space critical in hand-he ld devices. The YB1210 requires only 0. 47 µF output capacitor for stability w ith any load. The YB1210 consumes less than 1µA in shutdown mode. Other featu res include high output voltage accurac y and current limiting protection. The YB1210 regulators are available in SOT- 23 / SOT-25 / SOT-89 packages. Feature s „ High Accuracy +-2% Output Voltage „ Ultra-Low-Noise Low-Drop-Out Regulat or with 1.8/2.5/2.6/2.8/3.0V/3.3V Preset Outputs „ Stable with 0.47µF .
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