YB1210R
300mA, Ultra-Low-Noise, High PSRR LDO Regulator
Description
The YB1210R is a series of ultra-low-noise, low dropout (LDO) linear regulators with 2.0% output voltage accuracy. The YB1210R regulators achieve a low 320mV dropout at 300mA load current of 3.3V output and are available in voltages ranging from 1.2V to 3.6V with 0.1 V per step (custom voltage is considerable at request).
The YB1210R regulators are optimized to work with low-ESR and low cost ceramic capacitors, reducing the amount of board space critical in portable devices. The YB1210R 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 protect offer secure protection against fault operation. The YB1210R 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: ~60μA
320mV Dropout at 300mA 3.3V Output
Stable with 1.0μF Ceramic Capacitor
Only Need Input and Output Capacitors
Thermal Protection Shutdown
Output Short-Circuit Current Limit
Built-In Internal Soft-Start
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
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Figure 1-1: SOT-25 Application Circuit |
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Figure 1-2: SOT-23/SOT-89 Application Circuit |
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YB1210R Rev.1.6 |
www.yobon.com.tw |
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YB1210R
300mA, Ultra-Low-Noise, High PSRR LDO Regulator
Pin Configuration
Figure 2: Pin Configuration
Pin Description
Table 1
Name |
Description |
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VIN |
Unregulated input supply. Bypass with a capacitor to GND. |
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GND |
Ground pin. |
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EN |
Pull high to enable the regulator. |
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N.C. or |
Connect a 33nF capacitor to GND for low noise operation or N.C. |
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BYPASS |
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VOUT |
Regulated output voltage. Bypass with a capacitor to GND. |
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YB1210R Rev.1.6 |
www.yobon.com.tw |
2 |
YB1210R
300mA, Ultra-Low-Noise, High PSRR LDO Regulator
Ordering Information
Marking Information
Absolute Maximum Ratings (Note 1)
Supply Voltage............................ |
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- 0.3V to 6V |
Output Voltage ................ |
-0.3V to (VIN+0.3V) |
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Output Short-Circuit Duration |
..............Infinite |
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Junction Temperature Range............ |
+150 |
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Storage Temperature Range .... |
- 65 to +150 |
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Lead Temperature............................. |
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+250 |
ESD Susceptibility (HBM)………………..2KV |
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ESD Susceptibility (MM) ....................... |
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200V |
Note:
Recommended Operating Conditions
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(Note 2) |
Input Supply Voltage............... |
2.0V to 5.5V |
Operating Temperature........ |
-40 to +85 |
Thermal In formation (Note 3)
Thermal Resistance (SOT23/25, 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
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 = 25 on a low effective thermal conductivity board.
YB1210R Rev.1.6 |
www.yobon.com.tw |
3 |
YB1210R
300mA, Ultra-Low-Noise, High PSRR LDO Regulator
Electrical Characteristics
Table 2 VIN = ( VOUT + 1V ), CIN = COUT = 1.0μF, VEN = VIN, TA=25°C, unless otherwise noted.
Description |
Symbol |
Test Conditions |
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TYP |
MAX |
Units |
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Input Voltage Range |
VIN |
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2.0 |
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5.5 |
V |
Output Voltage |
VOUT |
Predefined |
1.2 |
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3.6 |
V |
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Output Voltage Accuracy |
VOUT |
IOUT = 10mA, VOUT 1.3V |
-2.0 |
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+2.0 |
% |
IOUT = 10mA, VOUT = 1.2V |
0 |
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+4.0 |
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Output Current Limit |
ISC |
Short-Circuit Output |
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200 |
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mA |
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VOUT = 3.6V, IOUT = 300mA |
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300 |
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VOUT = 3.0V, IOUT = 300mA |
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350 |
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Dropout Voltage (Note 1) |
VDROP |
VOUT = 2.5V, IOUT = 300mA |
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450 |
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mV |
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VOUT = 1.5V, IOUT = 300mA |
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700 |
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VOUT = 1.2V, IOUT = 300mA |
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870 |
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Ground Current |
IG |
Iground = IIN - IOUT |
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60 |
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μA |
Line Regulation |
VLINE |
VIN=(VOUT+ 1V) to 5.5V, IOUT=10mA |
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0.3 |
0.4 |
%/V |
Load Regulation |
VLOAD |
IOUT = 1mA to 300mA |
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1.0 |
1.5 |
% |
Shutdown Supply Current |
ISD |
EN = 0V |
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1 |
μA |
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f = 1KHz, IOUT = 1mA |
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50 |
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Ripple Rejection (PSRR) |
PSRR |
f = 10KHz, IOUT = 1mA |
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60 |
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dB |
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f = 100KHz, IOUT = 1mA |
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40 |
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Start Up Delay (Note 2) |
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Rload = 100 ohm, Cbypass = 0nF |
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20 |
50 |
μs |
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Rload = 100 ohm, Cbypass = 33nF |
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2 |
3.5 |
ms |
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Shutdown Delay (Note 3) |
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Rload = 10K ohm, VOUT = 1.5V |
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1 |
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ms |
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Rload = 10K ohm, VOUT = 1.2V |
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1 |
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EN Logic Low Level |
VIL |
VIN = 2.0V to 5.5V |
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0.4 |
V |
EN Logic High Level |
VIH |
VIN = 2.0V to 5.5V |
1.2 |
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VIN |
V |
EN Input Bias Current |
IBEN |
VIN = EN = VOUT +1V |
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0.01 |
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μA |
Thermal Shutdown |
TSD |
Shutdown Temperature |
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160 |
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°C |
Thermal Hysteresis |
THYS |
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20 |
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°C |
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Note :
1.The drop out voltage varies depending on output voltage selection. Dropout is defined as VIN – VOUT when VOUT is 100mV below nominal VOUT where VIN = VOUT + 1V for nominal VOUT.
2.Time needed for VOUT to reach 90% of final value.
3.Time needed for VOUT to discharge below 0.5V.
YB1210R Rev.1.6 |
www.yobon.com.tw |
4 |