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 0.1 V 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 0.47 µF 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 : 150 mA
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 Circuitry
YB1200R MRev. 1.0
www.yobon.com.tw
1
YB1200R
150mA High PSRR with Auto-Discharge LDO Regulator
Ordering Information
Marking Information
Absolute Maximum Ratings
Supply Voltage ................................................ -0.3V to 7.0V
Output Voltage ....................................... -0.3V to (V
IN
+0.3V)
Output Short-Circuit Duration.....................................Infinite
Junction Temperature Range ...................................+150℃
Storage Temperature Range..................... -65℃ to +150℃
Lead Temperature ....................................................+250℃
Recommended Operating Conditions
Input Supply Voltage.........................................2V to 6.0V
Operating Temperature............................ -40℃ to +85℃
ESD Susceptibility (HBM)...........................................2KV
ESD Susceptibility (MM)........................................... 200V
Thermal Resistance (SC-70/82,
θ
JA
)
................330℃/W
Internal Power Disspation (SC-70/82, P
D
)
.............. 0.3W
YB1200R MRev. 1.0
www.yobon.com.tw
3
YB1200R
150mA High PSRR with Auto-Discharge LDO Regulator
Electrical Characteristics
Table 2
Function Parameter
Input Voltage Range
Output Voltage
Output Voltage Accuracy
Output Current Limit
Predefined
I
OUT
= 10mA, VOUT >= 1.3V
Iout = 10mA, VOUT = 1.2V
Short-circuit output
Vout = 3.6V, Iout = 150 mA
Vout = 3.0V, Iout = 150 mA
Dropout Voltage (
Note 1
)
Vout = 2.5V, Iout = 150 mA
Vout = 1.5V, Iout = 150 mA
Vout = 1.2V, Iout = 150 mA
Ground Current
Line Regulation
Load Regulation
Shutdown Supply Current
Iground = Iin - Iout
Vin = (Vout + 1V) to 6V, Iout = 10 mA
Iout = 1mA to 150 mA
EN = 0.4V
f = 1KHz, Iout = 1 mA
Ripple Rejection (PSRR)
f = 10KHz, Iout = 1 mA
f = 100 KHz, Iout = 1 mA
Start Up Delay
(Note 2)
Rload=100ohm,Cbypass=0nF
Rload=100 ohm, Cbypass=33nF
Rload=10K ohm, VOUT=1.5V
Rload=10K ohm, VOUT=1.2V
Vin = 2.0V to 6.0V
Vin = 2.0V to 6.0 V
Vin = EN = Vout + 1V
Shutdown Temperature
1.2
0.01
160
20
T
A
= 25℃, V
IN
= ( V
OUT
+ 1 V ), C
IN
= C
OU T
= 0.47µF, V
EN
= V
IN,
unless otherwise noted
Conditions
Min
2.0
1.2
-2.0
0
Typ
Max
6.0
3.6
+2.0
+4.0
Units
V
V
%
%
mA
45
150
180
250
380
510
60
0.30
0.6
0.01
60
78
69
20
2
1
1
0.4
Vin
50
3.5
0.40
1.2
mV
μA
%/V
%
μA
dB
μS
mS
mS
mS
V
V
μA
°C
°C
Shutdown Delay (
Note 3)
EN Logic Low Level
EN Logic High Level
EN Input Bias Current
Thermal Shutdown
Thermal Hysteresis
Note1 :
The drop out voltage varies depending on output voltage selection. Dropout is defined as V
IN
–V
OUT
when V
OUT
is 100mV below V
OUT
where Vin=Vout + 1V for nominal V
OUT
.
Note 2:
Time needed for V
OUT
to reach 90% of final value.
Note 3:
Time needed for V
OUT
to discharge below 0.5V.
YB1200R MRev. 1.0
www.yobon.com.tw
4
Embedded System
京公网安备 11010802033920号
EEWORLD
