Yobon YB1210ST23R120, YB1210ST23R130, YB1210ST23R140, YB1210ST23R150, YB1210ST23R160 Schematic [ru]
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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
Figure 1-1: SOT-25 Application Circuit Figure 1-2: SOT-23/SOT-89 Application Circuit
YB1210R Rev.1.6 www.yobon.com.tw 1
Pin Configuration
YB1210R
300mA, Ultra-Low-Noise, High PSRR 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.
N.C. or
BYPASS
VOUT Regulated output voltage. Bypass with a capacitor to GND.
Connect a 33nF capacitor to GND for low noise operation or N.C.
YB1210R Rev.1.6 www.yobon.com.tw 2
Ordering Information
YB1210R
300mA, Ultra-Low-Noise, High PSRR LDO Regulator
Marking Information
Absolute Maximum Ratings (Note 1)
Supply Voltage............................ -0.3V to 6V
Output Voltage................ -0.3V to (VIN+0.3V)
Output Short-Circuit Duration..............Infinite
Junction Temperature Range............ +150℃
Storage Temperature Range ....-65℃ to +150℃
Lead Temperature............................. +250℃
ESD Susceptibility (HBM)………………..2KV
ESD Susceptibility (MM) .......................200V
Note:
1. Exceeding these ratings may damage the device.
2. The device is not guaranteed to function outside of its operating conditions.
Recommended Operating Conditions
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
(Note 2)
3. θ
is measured in free air at TA = 25℃ on a low effective thermal conductivity board.
JA
YB1210R Rev.1.6 www.yobon.com.tw 3
300mA, Ultra-Low-Noise, High PSRR LDO Regulator
Electrical Characteristics
Table 2 V
IN
= ( V
+ 1V ), CIN = C
OUT
Description Symbol Test Conditions MIN TYP MAX Units
YB1210R
= 1.0μF, VEN = VIN, TA=25°C, unless otherwise noted.
OUT
Input Voltage Range
Output Voltage
Output Voltage Accuracy
Output Current Limit
Dropout Voltage (Note 1)
Ground Current
Line Regulation
Load Regulation
Shutdown Supply Current
Ripple Rejection (PSRR)
Start Up Delay (Note 2)
V
IN
V
OUT
ΔV
OUT
I
SC
V
DROP
I
G
ΔV
LINE
ΔV
LOAD
I
SD
PSRR
Predefined
I
= 10mA, V
I
OUT
Short-Circuit Output
V
= 3.6V, I
OUT
V
= 3.0V, I
OUT
V
= 2.5V, I
OUT
V
= 1.5V, I
OUT
V
= 1.2V, I
OUT
Iground = I
V
=(V
IN
I
= 1mA to 300mA
OUT
EN = 0V
= 10mA, V
OUT
f = 1KHz, I
f = 10KHz, I
f = 100KHz, I
IN
+ 1V) to 5.5V, I
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
- I
OUT
= 1mA
= 1mA
OUT
OUT
≧ 1.3V
= 1.2V
= 300mA
= 300mA
= 300mA
= 300mA
= 300mA
= 1mA
Rload = 100 ohm, Cbypass = 0nF
Rload = 100 ohm, Cbypass = 33nF
OUT
=10mA
2.0 5.5 V
1.2 3.6 V
-2.0 +2.0
%
0 +4.0
200 mA
300
350
450
mV
700
870
60
μA
0.3 0.4 %/V
1.0 1.5 %
1 μA
50
60
dB
40
20 50 μs
2 3.5 ms
Shutdown Delay (Note 3)
EN Logic Low Level
EN Logic High Level
EN Input Bias Current
Thermal Shutdown
Thermal Hysteresis
T
V
V
I
BEN
T
IL
IH
SD
HYS
Rload = 10K ohm, V
Rload = 10K ohm, V
V
= 2.0V to 5.5V
IN
V
= 2.0V to 5.5V
IN
V
= EN = V
IN
Shutdown Temperature
OUT
+1V
OUT
OUT
= 1.5V
= 1.2V
1
ms
1
0.4 V
1.2 V
V
IN
0.01 μA
160 °C
20 °C
Note :
1. The drop out voltage varies depending on output voltage selection. Dropout is defined as V
V
is 100mV below nominal V
OUT
2. Time needed for V
3. Time needed for V
to reach 90% of final value.
OUT
to discharge below 0.5V.
OUT
where VIN = V
OUT
+ 1V for nominal V
OUT
OUT
.
IN
– V
OUT
when
YB1210R Rev.1.6 www.yobon.com.tw 4
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