BELLING BL9198

BL9198
300mA UltraUltra-low Noise, UltraUltra-Fast
CMOS LDO Regulator
FEATURES
Ultra-low Noise for RF Application
Ultra-Fast Response in Line/Load
Transient
<0.01µA
Standby
Current
When
Shutdown.
Low Dropout:[email protected]
Wide Operating Voltage Ranges:2V to
6V
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
Available in 5-Lead SOT-23 and SC-70
Package
APPLICATIONS
Cellular and Smart Phones
Battery-Powered Equipment
Laptop, Palmtops, Notebook Computers
Hand-Held Instruments
PCMCIA Cards
MP3/MP4/MP5 Players
Portable Information Appliances
DESCRIPTION
The BL9198 is designed for portable RF and
wireless applications with demanding performance 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
dropout voltage, high output accuracy,
current limiting protection, and high ripple
rejection ratio. Available in the 5-lead SC-70
and SOT-23 packages.
ORDERING INFORMATION
TYPICAL APPLICATION
BL9198 XX X X X XXX
BL9198 28 AA
Package:
RN: SOT-23-5
URN: SC-70-5
Features
P: Standard (default, lead free)
C: Customized
VIN
1
C1
1uF
2
Chip
Enable
3
Enable Option:
A: active high with internal 8 MΩ pull down
B: active low with internal 8 MΩ pull up
Output Voltage Accuracy
A: ±1%
B: ±2%
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)
PPMIC BU
BL9198 Rev 1.9
3/2011
VIN
VOUT
5
VOUT
C2
1uF
GND
BL9198
EN
NC
4
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.
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1
BL9198
300mA UltraUltra-low Noise, UltraUltra-Fast
CMOS LDO Regulator
Absolute Maximum Rating
Input Supply Voltage (VIN)
EN Pin Input Voltage
Output Voltages
Output Current
(Note 1)
-0.3V to +6V
-0.3V to VIN
-0.3V to VIN+0.3V
300mA
Maximum Junction Temperature
150°C
(Note2)
Operating Temperature Range
-40°C to 85°C
Storage Temperature Range
-65°C to 125°C
Lead Temperature (Soldering, 10s)
300°C
Package Information
Thermal Resistance (Note 4):
Package
SOT23-5
SC70-5
SOT23
SOT2323-5/SC70
SC7070-5
TOP VIEW
VIN
1
Part Number
VOUT
4
NC
3
Top Mark
Temp Range
(Note3)
BL9198-12
DAYW
BL9198-13
DBYW
-40°C to +85°C
BL9198-15
DCYW
-40°C to +85°C
BL9198-18
DDYW
-40°C to +85°C
BL9198-25
DEYW
-40°C to +85°C
BL9198-27
DFYW
-40°C to +85°C
BL9198-28
DGYW
-40°C to +85°C
BL9198-285
DHYW
-40°C to +85°C
BL9198-30
DIYW
-40°C to +85°C
BL9198-32
DJYW
-40°C to +85°C
BL9198-33
DKYW
-40°C to +85°C
BL9198-50
DLYW
-40°C to +85°C
A
1.2V
Y
Year
B
1.3V
C
1.5V
-40°C to +85°C
D
1.8V
E
2.5V
F
2.7V
G
2.8V
9
2009
A
2010
B
2011
C
2012
D
2013
A
1
…
…
Y
25
Z
26
a
27
W
Week
ӨJC
130°C/W
170°C/W
MARKING
GND 2
EN
5
ӨJA
250°C/W
333°C/W
H
2.85V
…
…
I
3.0V
y
51
J
3.2V
K
3.3V
L
5.0V
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 with statistical
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 oz copper.
PPMIC BU
BL9198 Rev 1.9
3/2011
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BL9198
300mA UltraUltra-low Noise, UltraUltra-Fast
CMOS LDO Regulator
Pin Description
PIN
1
2
NAME
VIN
GND
3
EN
4
5
NC
VOUT
FUNCTION
Power Input Voltage.
Ground.
Chip Enable Pin with two options.
A: active high with internal 8 MΩ pull down
B: active low with internal 8 MΩ pull up
No Connection.
Output Voltage.
Block Diagram
BL9198 XX XA
PPMIC BU
BL9198 Rev 1.9
3/2011
BL9198 XX XB
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BL9198
300mA UltraUltra-low Noise, UltraUltra-Fast
CMOS LDO Regulator
Electrical Characteristics (Note 5)
(VIN=3.6V, EN=VIN, CIN=COUT=1µF, TA=25
Parameter
Symbol
Input Voltage
VIN
Output Voltage Accuracy
∆VOUT
(Note 6)
(Note 7)
∆VLINE
(Note 8)
∆VLOAD
TCVOUT
IOUT=1mA
ILIM
IQ
Dropout Voltage
VDROP
Load Regulation
(Note 9)
Output Voltage
Temperature Coefficient
Standby Current
ISTBY
EN Input Bias Current
IIBSD
EN
Input
Threshold
Conditions
VIN=3.6V,
IOUT=1mA
RLOAD=1Ω
VEN>1.2V, IOUT=0mA
IOUT=200mA,
VOUT=2.8V
IOUT=300mA,
VOUT=2.8V
VIN=3.6V to 5.5V
IOUT=1mA
1mA<IOUT<300mA
Current Limit
Quiescent Current
Line Regulation
℃, unless otherwise noted.)
Logic Low
VIL
Logic High
VIH
Output Noise
Voltage
Power
f=217Hz
Supply
f=1KHz
Rejection
f=10KHz
Ratio
Thermal Shutdown
Temperature
Thermal Shutdown
Hysteresis
VEN=GND,
Shutdown
VEN=GND or VIN
VIN=3V to 5.5V,
Shutdown
VIN=3V to 5.5V,
Start up
10Hz to100KHz,
IOUT=200mA
eNO
MIN
2
-1
-2
400
TYP
MAX
6
+1
+2
unit
V
%
430
90
130
mA
µA
130
180
210
300
0.05
0.17
%/V
2
%/A
mV
±60
0.01
℃
ppm/
1
µA
500
nA
0.4
V
1.2
V
100
µVRMS
-78
PSRR
IOUT=100mA
dB
-72
-52
Shutdown, Temp
increasing
TSD
TSDHY
℃
℃
165
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 1 − VOUT 2
 ∆V × V
OUT ( normal )
 IN
Note 7: Line regulation is calculated by ∆V
LINE = 

 × 100

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 1 − VOUT 2 
Note 8: Load regulation is calculated by ∆V
 ×100
LOAD = 
 ∆I × V
 OUT OUT ( normal ) 
Where VOUT1 is the output voltage when IOUT=1mA, and VOUT2 is the output voltage when IOUT=300mA.
VOUT(normal)=2.8V.
∆VOUT
Note 9: The temperature coefficient is calculated by TC
VOUT =
∆T × VOUT
PPMIC BU
BL9198 Rev 1.9
3/2011
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△I
OUT=0.299A,
4
BL9198
300mA UltraUltra-low Noise, UltraUltra-Fast
CMOS LDO Regulator
Typical Performance Characteristics
Output Voltage Vs. Temperature
Quiescent Current Vs. Temperature
140
3.0
VIN=3.6V
Output Voltage(V)
Quiescent Current(uA)
CIN=COUT=1uF
2.9
VIN=3.6V
CIN=COUT=1uF
130
2.8
2.7
120
110
100
90
80
2.6
70
2.5
-50
-25
0
25
50
75
100
60
-50
125
-25
0
25
50
Dropout Voltage Vs. Load Current
VIN=4.2V
CIN=1uF,COUT=1uF,X7R
-10
ILOAD=1mA
ILOAD=100mA
ILOAD=200mA
-20
-30
200
PSRR(dB)
Dropout Voltage(mV)
125
PSRR
CIN=COUT=1uF
250
150
100
-40
-50
-60
TJ=85°C
TJ=25°C
TJ=-40°C
50
0
50
100
150
200
250
-70
-80
300
-90
10
100
Load Current(mA)
1000
10000
100000
Frequency(Hz)
EN Pin Shutdown Threshold Vs. Temperature
Current Limit Vs. Input Voltage
500
1.05
VIN=3.6V
1.00
480
CIN=COUT=1uF
CIN=COUT=1uF
VOUT=2.8V
460
Current Limit(mA)
EN Pin Shutdown Threshold(V)
100
0
300
0
75
Temperature(°C)
Temperaute(°C)
0.95
0.90
0.85
440
420
400
380
360
0.80
340
320
0.75
-50
-25
0
25
50
Temperature(°C)
PPMIC BU
BL9198 Rev 1.9
3/2011
75
100
125
300
3.0
3.5
4.0
4.5
5.0
5.5
6.0
Input Voltage(V)
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BL9198
300mA UltraUltra-low Noise, UltraUltra-Fast
CMOS LDO Regulator
PPMIC BU
BL9198 Rev 1.9
3/2011
www.belling.com.cn
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BL9198
300mA UltraUltra-low Noise, UltraUltra-Fast
CMOS LDO Regulator
Output Voltage(V)
VOUT 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
1.0
CIN=COUT=1uF
ILoad=1mA
ILoad=100mA
ILoad=300mA
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
Input Voltage(V)
PPMIC BU
BL9198 Rev 1.9
3/2011
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BL9198
300mA UltraUltra-low Noise, UltraUltra-Fast
CMOS LDO Regulator
Applications Information
Like any low-dropout regulator, the external capacitors used with the BL9198
must be carefully selected for regulator
stability and performance. Using a capacitor whose value is > 1µF on the BL9198
input and the amount of capacitance can
be increased without limit. The input capacitor 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 (equivalent series resistance) provides better
PSRR and line-transient response. The
output capacitor must meet both requirements for minimum amount of capacitance and ESR in all LDOs application.
The BL9198 is designed specifically to
work with low ESR ceramic output capacitor 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
VOUT pin of the BL9198 and returned to a
clean analog ground.
Enable Function
The BL9198 features an LDO regulator enable/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 shutPPMIC BU
BL9198 Rev 1.9
3/2011
down mode when the voltage on the EN
pin falls below 0.4 volts. For to protect the
system, the BL9198 have a quick discharge 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.
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 specification 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 thermal resistance (θJA is layout dependent)
for SOT-23-5 package is 250°C/W, SC-705 package is 333°C/W, on standard
JEDEC 51-3 thermal test board. The maximum power dissipation at TA= 25°C can
be calculated by following formula:
PD(MAX) = (125°C−25°C)/333 = 300mW
(SC-70-5)
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BL9198
300mA UltraUltra-low Noise, UltraUltra-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.
PPMIC BU
BL9198 Rev 1.9
3/2011
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BL9198
300mA UltraUltra-low Noise, UltraUltra-Fast
CMOS LDO Regulator
BL9198-2.8V Layout Circuit
VIN
VIN
1
C4
1uF
C1
1uF 2
JP
1
2
3
3
1
VIN
BL9198 Rev 1.9
3/2011
VOUT
5
BL9198
C2
1uF
GND
EN
VOUT
NC
4
2
3
TOP Layer Layout
PPMIC BU
VIN
BOTTOM Layer Layout
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BL9198
300mA UltraUltra-low Noise, UltraUltra-Fast
CMOS LDO Regulator
Package Description
Symbol
A
A1
B
b
C
D
e
H
L
Dimensions In Millimeters
Dimensions In Inches
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
0.650
0.026
0.080
0.260
0.003
0.010
0.210
0.460
0.008
0.018
SC-70-5 Surface Mount Package
PPMIC BU
BL9198 Rev 1.9
3/2011
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BL9198
300mA UltraUltra-low Noise, UltraUltra-Fast
CMOS LDO Regulator
Package type
SC70-5
Number of devices per reel
3000
Tape dimension
Taping reel dimension
PPMIC BU
BL9198 Rev 1.9
3/2011
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BL9198
300mA UltraUltra-low Noise, UltraUltra-Fast
CMOS LDO Regulator
Symbol
A
A1
B
b
C
D
e
H
L
Dimensions In Millimeters
Min
0.889
0.000
1.397
0.356
2.591
2.692
0.838
0.080
0.300
Max
1.295
0.152
1.803
0.559
2.997
3.099
1.041
0.254
0.610
Dimensions In Inches
Min
0.035
0.000
0.055
0.014
0.102
0.106
0.033
0.003
0.012
Max
0.051
0.006
0.071
0.022
0.118
0.122
0.041
0.010
0.024
SOT-23-5 Surface Mount Package
PPMIC BU
BL9198 Rev 1.9
3/2011
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BL9198
300mA UltraUltra-low Noise, UltraUltra-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
PPMIC BU
BL9198 Rev 1.9
3/2011
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