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YB1200R
150mA High PSRR with Auto-Discharge LDO Regulator
Description
The YB1200R is a series of ultra-low-noise,
low dropout (LDO) linear regulators with
2.0% output voltage accuracy. The
YB1200R regulators achieve a low 180mV
dropout at 150mA load current of 3.3V
output and are available in voltages
ranging from 1.2V to 3.6V with 0.1V per
step (custom voltage is considerable at
request).
The YB1200R regulators are optimized to
work with low-ESR and low cost ceramic
capacitors, reducing the amount of board
space critical in portable devices. The
YB1200R requires only 0.47μF output
capacitor for stability with any load and
consumes less than 1μA in shutdown mode.
YB1200R also deploys an auto-discharge
circuit which can de-energize the output
capacitor to prevent the system from
abnormal operation during shutdown.
Built-in thermal shutdown and short-circuit
protect offer secure protection against fault
operation. The YB1200R regulators are
available in SC-70 / SC-82 packages.
Features
„ High Accuracy Output Voltage : + 2%
„ Wide Output Voltage Range : 1.2 ~ 3.6V
„ Ultra-Low-Noise Low-Drop-Out
„ Typical Output Current : 150mA
„ Low Quiescent Current : ~ 60μA
„ 180mV Dropout at 150mA 3.3V Output
„ Stable with 0.47μF Ceramic Capacitor
„ Only Need Input and Output Capacitors
„ Thermal Protection Shutdown
„ Output Short-Circuit Current Limit
„ Built-In Internal Soft-Start
„ Built-In Auto-Discharge Function
„ Green Package (RoHS) Available
Applications
„ PDA, Notebook, PC Computers
„ DSC, Handset Camera Modules
„ PCMCIA Cards, PC Cameras
„ USB Based Portable Devices
„ GSM/GPRS/3G RF Transceiver
„ Wireless LANs
„ Bluetooth Portable Radios
„ Battery-Powered Devices
Typical Application Circuit
Figure 1-1: SC-70 Application Circuit
Figure 1-2: SC-82 Application Circuit
YB1200R Rev.1.2
www.yobon.com.tw
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Pin Configuration
YB1200R
150mA High PSRR with Auto-Discharge LDO Regulator
Figure 2: Pin Configuration
Pin Description
Table 1
Name
Description
VIN Unregulated Input Supply. Bypass with a capacitor to GND.
GND Ground Pin.
EN Pull high to enable the regulator.
BYPASS Connect a 33nF capacitor to GND for low noise operation.
VOUT Regulated Output Voltage. Bypass with a capacitor to GND.
YB1200R Rev.1.2
www.yobon.com.tw
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YB1200R
150mA High PSRR with Auto-Discharge LDO Regulator
Ordering Information
Absolute Maximum Ratings
Recommended Operating Conditions
Supply Voltage............................ -0.3V to 7V
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
Thermal Resistance (SC-70/82, θJA)....... 330/W
Internal Power Dissipation (SC-70/82, PD).....0.3W
Input Supply Voltage..................... 2V to 6V
Operating Temperature......... -40to +85
ESD Susceptibility (HBM).................... 2KV
ESD Susceptibility (MM).....................200V
YB1200R Rev.1.2
www.yobon.com.tw
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