YB1200R.pdf 데이터시트 (총 11 페이지) - 파일 다운로드 YB1200R 데이타시트 다운로드

No Preview Available !

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
1

No Preview Available !

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
2

No Preview Available !

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
3

No Preview Available !

YB1200R
150mA High PSRR with Auto-Discharge LDO Regulator
Electrical Characteristics
Table 2 VIN = ( VOUT + 1V ), CIN = COUT = 0.47μF, VEN = VIN, TA=25°C, unless otherwise noted.
Description
Symbol
Test Conditions
MIN TYP MAX
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)
Shutdown Delay (Note 3)
EN Logic Low Level
EN Logic High Level
EN Input Bias Current
Thermal Shutdown
Thermal Hysteresis
VIN
VOUT
ΔVOUT
ISC
VDROP
IG
ΔVLINE
ΔVLOAD
ISD
PSRR
VIL
VIH
IBEN
TSD
THYS
Predefined
IOUT = 10mA, VOUT ≧ 1.3V
IOUT = 10mA, VOUT = 1.2V
Short-Circuit Output
VOUT = 3.6V, IOUT = 150mA
VOUT = 3.0V, IOUT = 150mA
VOUT = 2.5V, IOUT = 150mA
VOUT = 1.5V, IOUT = 150mA
VOUT = 1.2V, IOUT = 150mA
Iground = IIN - IOUT
VIN = (VOUT + 1V) to 6V,
VOUT = 10mA
IOUT = 1mA to 150mA
EN = 0.4V
f = 1KHz, IOUT =1mA
f = 10KHz, IOUT =1mA
f = 100KHz, IOUT =1mA
Rload = 100 ohm, 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 6.0V
VIN = EN = VOUT + 1V
Shutdown Temperature
2.0
1.2
-2.0
0
1.2
200
150
180
250
380
510
60
0.30
0.6
0.01
50
60
40
20
2
1
1
0.01
160
20
6.0
3.6
+2.0
+4.0
0.40
1.2
50
3.5
0.4
VIN
Units
V
V
%
%
mA
mV
μA
%/V
%
μA
dB
μs
ms
ms
V
V
μA
°C
°C
Note :
1. The drop out voltage varies depending on output voltage selection. Dropout is defined as VIN – VOUT when
VOUT is 100mV below 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.
YB1200R Rev.1.2
www.yobon.com.tw
4

No Preview Available !

YB1200R
150mA High PSRR with Auto-Discharge LDO Regulator
Typical Performance Characteristics
VIN = ( VOUT + 1V ), CIN = COUT = 0.47μF, VEN = VIN, TA=25°C, unless otherwise noted.
Dropout Voltage vs. Output Load
Ground Current vs. Input Voltage
Dropout Voltage vs. Temperature
Dropout Voltage vs. Temperature
Output Voltage vs. Temperature
Output Voltage vs. Temperature
YB1200R Rev.1.2
www.yobon.com.tw
5