YB1200 – High Accuracy
Ultra-Low-Noise, High PSRR LDO Regulator
Description
Features
High Accuracy +-2%
The YB1200 family consists of a series of
150mA ultra-low-noise, low dropout (LDO)
linear regulators especially designed for
Ultra-Low-Noise Low-Drop-Out
Regulator with 1.8/2.5/2.6/2.8/3.0/3.3V
Preset Outputs
battery-powered
RF
and
wireless
Stable with 0.47µF Ceramic Capacitor
for Any Load
applications. The YB1200 regulator
achieves a low 250mV dropout at 150mA
load current of 3.3V output, ultra-low output
voltage noise of 15µVrms and PSRR of
57dB at 1KHz.
Typical Output Current: 150mA
Low Quiescent Current: ~90µA
250mV Dropout at 150mA Load (3.3V)
Only Need Input and Output Capacitors
Power Saving Shutdown Mode (<1µA)
Thermal Protection Shutdown
Built-In Internal Soft-Start
The YB1200 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
YB1200 requires only 0.47 µF output
capacitor for stability with any load. The
YB1200 consumes less than 1µA in
shutdown mode.
Output Short-circuit Current Limit
Protection
Green package (RoHS) available
Applications
PDA, Palmtops and Notebook Computers
DSC, Handset Camera Modules
PCMCIA Cards, PC Cameras
Other features include high output voltage
accuracy and current limiting protection.
The YB1200 regulators are available in a
tiny SC-70 / SC-82 package.
USB Based Portable Devices (MP3, PMP)
GSM/GPRS/3G RF Transceiver Modules
Wireless LANs, Bluetooth Portable Radios
Typical Application Circuit
INPUT
OUTPUT PRESET
OUT
YB1200
IN
Cin=0.47uF
ON
EN
Cout=0.47uF
OFF
NC or
Bypass
Cbypass
=30nF
GND
Figure 1-1. SC-70 application circuit
www.yobon.com.tw
YB1200 MRev.1.4
1