BL919818AACURN [BELLING]
300mA Ultra-low Noise, Ultra-Fast CMOS LDO Regulator;型号: | BL919818AACURN |
厂家: | BELLING |
描述: | 300mA Ultra-low Noise, Ultra-Fast CMOS LDO Regulator |
文件: | 总14页 (文件大小:1183K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
BL9198
300mA Ultra-low Noise, Ultra-Fast
CMOS LDO Regulator
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Hand-Held Instruments
PCMCIA Cards
MP3/MP4/MP5 Players
Portable Information Appliances
FEATURES
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Ultra-low Noise for RF Application
Ultra-Fast Response in Line/Load
Transient
DESCRIPTION
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<0.01µA
Shutdown.
Standby
Current
When
The BL9198 is designed for portable RF and
wireless applications with demanding perfor-
mance and space requirements. The BL9198
performance is optimized for battery-powered
systems to deliver ultra low noise and low
quiescent current. Regulator ground current
increases only slightly in dropout, further
prolonging the battery life. The BL9198 also
works with low-ESR ceramic capacitors,
reducing the amount of board space
necessary for power applications, critical in
hand-held wireless devices. The BL9198
consumes less than 0.01µA in shutdown
mode and has fast turn-on time less than
50µs. The other features include ultra low
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Low Dropout:210mV@300mA
Wide Operating Voltage Ranges:2V to
6V
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TTL-logic-Controlled Shutdown Input
Low Temperature Coefficient
Current Limiting Protection
Thermal Shutdown Protection
Only 1µF Output Capacitor Required for
Stability
High Power Supply Rejection Ratio
Custom Voltage Available
Fast output discharge
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Available in 5-Lead SOT-23 andSC-70
Package
dropout voltage, high output
accuracy,
APPLICATIONS
current limiting protection, and high ripple
rejection ratio. Available in the 5-lead SC-70
and SOT-23 packages.
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Cellular and Smart Phones
Battery-Powered Equipment
Laptop, Palmtops, Notebook Computers
ORDERING INFORMATION
BL9198 XX X X X XXX
TYPICAL APPLICATION
BL9198 28 AA
1
VIN
5
4
VOUT
Package:
RN: SOT-23-5
URN: SC-70-5
VOUT
VIN
C1
1uF
C2
1uF
2
3
GND
Features
P: Standard (default, lead free)
C: Customized
BL9198
Chip
Enable
EN
NC
Enable Option:
A: active high with internal 8 MΩ pulldown
B: active low with internal 8 MΩ pull up
Output Voltage Accuracy
A: ±1%
B: ±2%
Application hints:
Output capacitor (C2 2.2uF) is recommended
in BL9198-1.2V, BL9198-1.3V, BL9198-1.5V
and BL9198-1.8V application to assure the
stability of circuit.
Output Voltage:
12: 1.2V 13:1.3V 15: 1.5V 18:1.8V
25:2.5V 27:2.7V 28:2.8V 285: 2.85V
30: 3.0V 32:3.2V 33:3.3V 50:5.0V
CT: custom fixed output (50mV step)
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BL9198 Rev 2.1
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BL9198
300mA Ultra-low Noise, Ultra-Fast
CMOS LDO Regulator
Absolute Maximum Rating (Note 1)
Input Supply Voltage (VIN)
EN Pin Input Voltage
Output Voltages
-0.3V to +6V
Maximum Junction Temperature
150°C
(Note2)
-0.3V to VIN
-0.3V to VIN+0.3V
300mA
Operating Temperature Range
Storage Temperature Range
Lead Temperature (Soldering, 10s)
-40°C to85°C
-65°C to 125°C
300°C
Output Current
Thermal Resistance (Note4)
:
ӨJC
Package Information
ӨJA
SOT23-5/SC70-5
TOP VIEW
Package
SOT23-5
SC70-5
130°C/W
170°C/W
250°C/W
333°C/W
VIN
GND
EN
1
2
3
5
4
VOUT
NC
Part Number
Top Mark
(Note3)
Temp Range
BL9198-12
BL9198-13
BL9198-15
BL9198-18
BL9198-25
BL9198-27
BL9198-28
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
D A Y W
D B Y W
D C Y W
D D Y W
D E Y W
D F Y W
D G Y W
BL9198-285
D H Y W
-40°C to +85°C
BL9198-30
BL9198-32
BL9198-33
BL9198-50
D I Y W
D J Y W
D K Y W
D L Y W
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
A
B
C
D
E
F
G
H
I
J
K
L
1.2V
1.3V
1.5V
1.8V
2.5V
2.7V
2.8V
2.85V
3.0V
3.2V
3.3V
5.0V
Y
Year
4
2014
5
2015
6
2016
ꢀ
ꢀ
0
2020
1
2021
ꢀ
ꢀ
W
Week
A
1
ꢀ
ꢀ
Y
25
Z
26
a
27
ꢀ
ꢀ
y
51
z
52
Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired.
Note 2: The BL9198 is guaranteed to meet performance specifications from 0°C to 70°C. Specifications over the –40°C
to 85°C operating temperature range are assured by design, characterization and correlation withstatistical
process controls.
Note 3: D: Product code of BL9198 A-L: Voltage code Y: Year of wafer manufacturing W: Week of wafer manufacturing.
Note 4: Thermal Resistance is specified with approximately 1 square of 1 ozcopper.
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BL9198 Rev 2.1
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BL9198
300mA Ultra-low Noise, Ultra-Fast
CMOS LDO Regulator
Pin Description
PIN
1
2
NAME
VIN
GND
FUNCTION
Power Input Voltage.
Ground.
Chip Enable Pin with two options.
3
EN
A: active high with internal 8 MΩ pull down
B: active low with internal 8 MΩ pull up
No Connection.
4
5
NC
VOUT
Output Voltage.
Block Diagram
VIN
VIN
Quick
Start
Quick
Start
-
-
Error
Error
Amplifier
Amplifier
+
+
VOUT
VOUT
Current Limit
And
Thermal
Protection
Current Limit
And
Thermal
Protection
VREF
VREF
EN
EN
GND
GND
BL9198 XX XA
BL9198 XX XB
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BL9198
300mA Ultra-low Noise, Ultra-Fast
CMOS LDO Regulator
Electrical Characteristics (Note 5)
(VIN=3.6V, EN=VIN, CIN=COUT=1µF, TA=25 , unless otherwise noted.)
Parameter
Input Voltage
Symbol
Conditions
MIN
2
TYP
MAX
6
unit
V
VIN
Output Voltage Accuracy
-1
-2
+1
+2
VIN=3.6V,
IOUT=1mA
%
∆VOUT
(Note 6)
ILIM
IQ
Current Limit
Quiescent Current
400
430
90
mA
µA
RLOAD=1Ω
VEN>1.2V, IOUT=0mA
130
180
IOUT=200mA,
VOUT=2.8V
IOUT=300mA,
VOUT=2.8V
VIN=3.6V to 5.5V
IOUT=1mA
130
210
0.05
Dropout Voltage
VDROP
mV
300
Line Regulation(Note 7)
Load Regulation(Note 8)
∆VLINE
∆VLOAD
TCVOUT
0.17
2
%/V
%/A
1mA<IOUT<300mA
Output Voltage(Note 9)
ppm/
IOUT=1mA
±60
Temperature Coefficient
VEN=GND,
Shutdown
VEN=GND or VIN
VIN=3V to 5.5V,
Shutdown
VIN=3V to 5.5V,
Start up
10Hz to100KHz,
IOUT=200mA
Standby Current
ISTBY
IIBSD
0.01
1
µA
nA
V
EN Input Bias Current
500
0.4
Logic Low
Logic High
VIL
VIH
eNO
EN
Input
Threshold
1.2
V
Output Noise
Voltage
100
µVRMS
Power
Supply
Rejection
Ratio
f=217Hz
-78
-72
-52
f=1KHz
PSRR
IOUT=100mA
dB
f=10KHz
Thermal Shutdown
Temperature
Shutdown, Temp
increasing
TSD
165
Thermal Shutdown
Hysteresis
TSDHY
30
Note 5: 100% production test at +25°C. Specifications over the temperature range are guaranteed by design and
characterization.
Note 6: This IC includes two kinds of output voltage accuracy versions. A: ±1%, B: ±2%.
VOUT
−VOUT
1
2
Note 7: Line regulation is calculated by
=
×100
LINE
∆V
∆
VIN ×VOUT
(normal
)
Where VOUT1 is the output voltage when VIN=5.5V, and VOUT2 is the output voltage when VIN=3.6V,
VIN=1.9V . VOUT (normal) =2.8V.
VOUT
−VOUT
1
Note 8: Load regulation is calculated by
2
=
×100
LOAD
∆V
∆
IOUT ×VOUT
(normal
)
Where VOUT1 is the output voltage when IOUT=1mA, and VOUT2 is the output voltage when IOUT=300mA. IOUT=0.299A,
VOUT(normal)=2.8V.
∆VOUT
Note 9: The temperature coefficient is calculated by
=
TCV
OUT
∆T ×VOUT
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BL9198 Rev 2.1
3/2017
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BL9198
300mA Ultra-low Noise, Ultra-Fast
CMOS LDO Regulator
Typical Performance Characteristics
Output Voltage Vs.Temperature
QuiescentCurrentVs.Temperature
140
130
120
110
3.0
V
IN=3.6V
=C
V
=3.6V
=C
IN
C
=1uF
OUT
IN
C
=1uF
OUT
2.9
2.8
2.7
2.6
2.5
IN
100
90
80
70
60
-50
-25
0
25
50
75
100
125
-50
-25
0
25
50
75
100
125
Temperature(°C)
Temperaute(
°C)
DropoutVoltage Vs. Load Current
PSRR
0
-10
-20
300
V
C
IN=4.2V
IN=1uF,COUT=1uF,X7R
I
I
I
LOAD=1mA
LOAD=100mA
LOAD=200mA
C
=C
=1uF
OUT
IN
250
200
150
100
50
-30
-40
-50
-60
-70
-80
TJ=85
TJ=25
°
°
C
C
TJ=-40
°C
0
-90
1000
10000
100000
0
50
100
150
200
250
300
10
100
Load Current(mA)
Frequency(Hz)
ENPinShutdownThresholdVs.Temperature
1.05
CurrentLimitVs.InputVoltage
500
C
IN=COUT=1uF
480
460
440
420
400
380
360
340
320
300
VIN=3.6V
V
OUT=2.8V
1.00
CIN=COUT=1uF
0.95
0.90
0.85
0.80
0.75
-50
-25
0
25
50
C)
75
100
125
3.0
3.5
4.0
4.5
5.0
5.5
6.0
Temperature(
°
Input Voltage(V)
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BL9198 Rev 2.1
3/2017
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BL9198
300mA Ultra-low Noise, Ultra-Fast
CMOS LDO Regulator
www.belling.com.cn
BL9198 Rev 2.1
3/2017
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BL9198
300mA Ultra-low Noise, Ultra-Fast
CMOS LDO Regulator
V
OUT Vs.VIN
3.0
2.9
2.8
2.7
2.6
2.5
2.4
2.3
2.2
2.1
2.0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
C
IN=COUT=1uF
ILoad=1mA
ILoad=100mA
ILoad=300mA
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
InputVoltage(V)
3
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BL9198 Rev 2.1
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BL9198
300mA Ultra-low Noise, Ultra-Fast
CMOS LDO Regulator
down mode when the voltage on the EN
pin falls below 0.4 volts. For to protect the
system, the BL9198 have a quick dis-
charge function. If the enable function is
not needed in a specific application, it may
be tied to VIN to keep the LDO regulator in
a continuously on state.
Applications Information
Like any low-dropout regulator, the ex-
ternal capacitors used with the BL9198
must be carefully selected for regulator
stability and performance. Using a capac-
itor whose value is > 1µF on the BL9198
input and the amount of capacitance can
be increased without limit. The input cap-
acitor must be located a distance of not
more than 0.5 inch from the input pin of the
IC and returned to a clean analog ground.
Any good quality ceramic or tantalum can
be used for this capacitor. The capacitor
with larger value and lower ESR (equi-
valent series resistance) provides better
PSRR and line-transient response. The
output capacitor must meet both requi-
rements for minimum amount of capa-
citance and ESR in all LDOs application.
The BL9198 is designed specifically to
work with low ESR ceramic output capa-
citor in space-saving and performance
consideration. Using a ceramic capacitor
whose value is at least 1µF with ESR is >
25mΩ on the BL9198 output ensures
stability. The BL9198 still works well with
output capacitor of other types due to the
wide stable ESR range. Output capacitor of
larger capacitance can reduce noise and
improve load transient response, stability,
and PSRR. The output capacitor should be
located not more than 0.5 inch from the
Thermal Considerations
Thermal protection limits power dissipation
in BL9198. When the operation junction
temperature exceeds 165°C, the OTP
circuit starts the thermal shutdown function
turn the pass element off. The pass
element turns on again after the junction
temperature cools by 30°C.
For continue operation, do not exceed
absolute maximum operation junction
temperature 125°C. The power dissipation
definition in device is:
PD(MAX) = ( TJ(MAX) − TA )/θJA
Where TJ(MAX) is the maximum operation
junction temperature 125°C, TA is the
ambient temperature and the θJA is the
junction to ambient thermal resistance. For
recommended operating conditions spe-
cification of BL9198, where TJ(MAX) is the
maximum junction temperature of the die
(125°C) and TA is the maximum ambient
temperature. The junction to ambient the-
rmal resistance (θJA is layout dependent)
for SOT-23-5 package is 250°C/W, SC-70-
V
OUT pin of the BL9198 and returned to a
clean analog ground.
5 package is 333°C/W, on
standard
JEDEC 51-3 thermal test board. The max-
imum power dissipation at TA= 25°C can
be calculated by following formula:
Enable Function
The BL9198 features an LDO regulator en-
able/disable function. To assure the LDO
regulator will switch on; the EN turn on
control level must be greater than 1.2 volts.
The LDO regulator will go into the shut-
PD(MAX) = (125°C−25°C)/333 = 300mW
(SC-70-5)
3
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BL9198 Rev 2.1
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BL9198
300mA Ultra-low Noise, Ultra-Fast
CMOS LDO Regulator
PD(MAX) = (125°C−25°C)/250 = 400mW
(SOT-23-5)
The maximum power dissipation depends
on operating ambient temperature for fixed
TJ(MAX) and thermal resistance θJA. It is
also useful to calculate the junction of
temperature of the BL9198 under a set of
specific conditions. In this example let the
Input voltage VIN=3.3V, the output current
Io=300mA and the case temperature
TA=40°C measured by a thermal couple
during operation. The power dissipation for
the VOUT=2.8V version of the BL9198 can
be calculated as:
PD = (3.3V−2.8V) ×300mA+3.6V×100uA
=150mW
And the junction temperature, TJ, can be
calculated as follows:
TJ=TA+PD×θJA=40°C+0.15W×250°C/W
=40°C+37.5°C=77.5°C<TJ(MAX) =125°C
For this operating condition, TJ is lower
than the absolute maximum operating
junction temperature,125°C, so it is safe to
use the BL9198 in this configuration.
Layout considerations
To improve ac performance such as PSRR,
output noise, and transient response, it is
recommended that the PCB be designed
with separate ground planes for VIN and
VOUT, with each ground plane connected
only at the GND pin of the device.
3
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BL9198 Rev 2.1
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BL9198
300mA Ultra-low Noise, Ultra-Fast
CMOS LDO Regulator
BL9198-2.8V Layout Circuit
VIN
VOUT
5
4
VIN
1
VIN
BL9198
VOUT
NC
C4
C1
C2
2
1uF
1uF
VIN
1uF
GND
JP
3
EN
1
2
1
2
3
3
BOTTOM Layer Layout
TOP Layer Layout
3
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BL9198 Rev 2.1
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3/2017
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BL9198
300mA Ultra-low Noise, Ultra-Fast
CMOS LDO Regulator
Package Description
Dimensions In Millimeters
Dimensions In Inches
Symbol
Min
Max
Min
Max
0.800
0.000
1.150
0.150
1.800
1.800
1.100
0.100
1.350
0.400
2.450
2.250
0.031
0.000
0.045
0.006
0.071
0.071
0.044
0.004
0.054
0.016
0.096
0.089
A
A1
B
b
C
D
e
0.650
0.026
0.080
0.210
0.260
0.460
0.003
0.008
0.010
0.018
H
L
SC-70-5 Surface Mount Package
3
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BL9198 Rev 2.1
3/2017
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BL9198
300mA Ultra-low Noise, Ultra-Fast
CMOS LDO Regulator
Package type
SC70-5
Number of devices per reel
3000
Tape dimension
Taping reel dimension
3
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BL9198 Rev 2.1
3/2017
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BL9198
300mA Ultra-low Noise, Ultra-Fast
CMOS LDO Regulator
Dimensions In Millimeters
Dimensions In Inches
Symbol
Min
Max
Min
Max
A
A1
B
0.889
0.000
1.397
0.356
2.591
2.692
0.838
0.080
0.300
1.295
0.152
1.803
0.559
2.997
3.099
1.041
0.254
0.610
0.035
0.000
0.055
0.014
0.102
0.106
0.033
0.003
0.012
0.051
0.006
0.071
0.022
0.118
0.122
0.041
0.010
0.024
b
C
D
e
H
L
SOT-23-5 Surface Mount Package
3
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BL9198 Rev 2.1
3/2017
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BL9198
300mA Ultra-low Noise, Ultra-Fast
CMOS LDO Regulator
Package type
SOT23-5
Number of devices per reel
3000
Tape dimension Default: Type I
Type I
Type II
Taping reel dimension
3
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