BELLING BL8554

BL8554
300mA High PSRR, Linear Regulator
DESCRIPTION
FEATURES
BL8554 series is a group of positive voltage
output, low power consumption, low dropout
voltage regulator.
•
•
•
•
BL8554 can provide output value in the range
of 1.0V~4.5V every 0.1V step. It also can be
customized on command.
•
•
BL8554 includes high accuracy voltage
reference, error amplifier, current limit circuit
and output driver module。
•
•
•
BL8554 has excellent load and line transient
response
and
good
temperature
characteristics, which can assure the stability
of chip and power system. And it uses
trimming technique to guarantee output
voltage accuracy within ±2%.
•
•
Low Power Consumption: 25uA(Typ.)
Low output noise (47uVRMS)
Standby Mode: 0.1uA
Low dropout Voltage: [email protected]
(Typ.)
High Ripple Rejection: [email protected]
(Typ.)
Low
Temperature
Coefficient:
±
100ppm/°C
Excellent Line regulation: 0.05%/V
Build-in chip enable circuit
Output Voltage Range: 1.0V~4.5V
(customized on command every 0.1V
step)
Highly Accurate: ±2%
Output Current Limit
APPLICATIONS
BL8554 is available in SOT-23-5, SC-70-5
and SOT23-3 packages which is lead free.
•
Power source for cellular phones and
various kind of PCSs
• Battery Powered equipment
• Power Management of MP3, PDA, DSC,
Mouse, PS2 Games
• Reference Voltage Source
• Regulation after Switching Power
TYPICAL APPLICATION
Load Regulation
(VIN=4.5V)
VOUT
VDD
Cin
BL8554
CE
Output
Cout
Vout(V)
Input
GND
On/Off
0
NOTE: Input capacitor (Cin=1uF) and Output
capacitor (Cout=3.3uF/4.7uF) are
recommended in all application circuit.
50
100
150
200
Iout(mA)
ELECTRICAL CHARACTERISTICS
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3.35
3.3
3.25
3.2
3.15
3.1
3.05
3
1
250
300
350
BL8554
ORDERING INFORMATION
PIN CONFIGURATION
BL8554 □
1 □
2 □
3 □
4
Product Classification
Code
Description
1
□
Temperature&Rohs:
C:-40~85°C ,Pb Free Rohs Std.
Package type:
A5:SC-70-5
B5A:SOT-23-5(A)
B5B:SOT-23-5(B)
B3: SOT23-3
Packing type:
TR:Tape&Reel (Standard)
Output voltage:
e.g. 15=1.5V
18=1.8V
45=4.5V
2
□
3
□
4
□
BL8554CA5TR□□
M: Product Code
X: Output Voltage
YW: Date Code
Product Classification
BL8554CB5ATR□□
M: Product Code
X: Output Voltage
YW: Date Code
Product Classification
BL8554CB5BTR□□
M: Product Code
MARKING DESCRIPTON
M: Product Code
X: Output Voltage
Vout
Code
Vout
X: Output Voltage
YW: Date Code
I: B type
Code
Vout
Code
Product Classification
1.0V
0
2.3V
3
3.6V
6
1.1V
1
2.4V
4
3.7V
7
M: Product Code
1.2V
2
2.5V
5
3.8V
8
X: Output Voltage
1.3V
3
2.6V
6
3.9V
9
YW: Date Code
1.4V
4
2.7V
7
4.0V
0
1.5V
5
2.8V
8
4.1V
1
1.6V
6
2.9V
9
4.2V
2
1.7V
7
3.0V
0
4.3V
3
1.8V
8
3.1V
1
4.4V
Vss
Vin
Vout
CE
NC
4
1.9V
9
3.2V
2
4.5V
5
2.0V
0
3.3V
3
2.1V
1
3.4V
4
2.2V
2
3.5V
5
Ground Pin
Supply Voltage Input
Output Voltage
Chip Enable
No Connection
Optional marking information:
From one source of assembly house, there are
dots in addition to formal marking information.
One is the pin1 indicator and the other is for
internal identification of the assembly house. The
dots are illustrated as below:
Y: The Year of manufacturing, ”8” stands for year
2008, ”9” stands for year 2009, and “ 0 ” stands for
year 2010.
① Internal ID of
assembly house
② Pin 1.
W: The week of manufacturing. ”A” stands
for week 1,”Z” stands for week 26,” A ”
stands for week 27,” Z ” stands for week 52.
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BL8554CB3TR□□
2
BL8554
ABSOLUTE MAXIMUM RATING
Parameter
Value
Max Input Voltage
Operating Junction Temperature(Tj)
Output Current
Ambient Temperature(Ta)
Power
SC70-5
Dissipation SOT-23-5
SOT-23-3
Storage Temperature(Ts)
Lead Temperature & Time
8V
125°C
300mA
-40°C –85°C
250mW
250mW
250mW
-40°C -150°C
260°C,10S
Note:
Exceed these limits to damage to the device.
Exposure to absolute maximum rating conditions may affect device reliability.
RECOMMENDED WORK CONDITIONS
Item
Min
Input Voltage Range
Ambient Temperature
2
-40
Recommended
Max.
Unit
6
85
V
°C
ELECTRICAL CHARACTERISTICS
(Test Conditions: Cin=1uF,Cout=3.3uF,TA=25°C, unless otherwise specified. )
BL8554, For Arbitrary Output Voltage
Symbol
Parameter
Conditions
Min
Typ
Vin
Input Voltage
2
Vout
VOUT>1.5V
x0.98
Output
Vin=Set Vout+1V
Vout
Vout
Voltage
1mA≤Iout≤30mA
Vout
VOUT<=1.5V
-0.03
Maximun Output
Iout (Max.)
Vin-Vout=1V
300
Current
Vdrop1
Dropout
Voltage,Vout≥2.8V
∆Vout
∆Vin ⋅ Vout
Line Regulation
∆Vout / ∆Iout
Load Regulation
Iss
Supply Current
Supply Current
(Srandby)
Output Voltage
Temperature
Coefficiency
Istandby
∆Vout
∆T ⋅ Vout
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Max
6
Vout
X1.02
Vout
+0.03
Units
V
V
mA
Iout=100mA
50
80
mV
Iout=300mA
160
220
mV
Iout=40mA
2.8V≤Vin≤6V
0.05
0.2
%/V
60
100
mV
25
50
uA
0.1
1.0
uA
Vin=Set Vout+1V
1mA≤Iout≤300mA
Vin=Set Vout+1V
Vin=Set Vout+1V
Vce=GND
Iout=30mA
3
±100
ppm/°C
BL8554
PSRR
Ilim
Vceh
Vcel
en
Ripple Rejection
Short Current Limit
CE Input Voltage “H”
CE Input Voltage “L”
Output Noise
F=100Hz,
Ripple=0.5Vp-p
Vin=Set Vout+1V
Vout=0V
70
500
1.5
0
BW=10Hz~100kHz
dB
Vin
0.25
47
mA
V
V
uVrms
NOTE:
Vdrop=Vin1-(Vout2*0.98) Vout2 is the output voltage when Vin=Vout1+1.0V and Iout=300mA.
Vin1 is the input voltage at which the output voltage becomes 98% of Vout1 after gradually decreasing the input voltage.
BLOCK DIAGRAM
Explanation
BL8554 series is a group of positive voltage output, low noise, low power consumption, low
dropout voltage regulator.
BL8554 can provide output value in the range of 1.0V~4.5V every 0.1V step. It also can be
customized on command.
BL8554 includes high accuracy voltage reference, error amplifier, current limit circuit and output
driver module.
BL8554 has excellent load and line transient response and good temperature characteristics,
which can assure the stability of chip and power system. And it uses trimming technique to
guarantee output voltage accuracy within±2%.
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4
BL8554
TYPICAL PERFORMANCE CHARACTERISTICS
1) Output Voltage vs. Output Current (with output
short protection)
2) Output Voltage vs. Input Voltage
Line Regulation
Current limit Vs. Vout
3.5
3.313
3
3.3125
VOUT(V)
Vout(V)
2.5
2
3.312
3.3115
1.5
3.311
1
3.3105
0.5
3
3.5
4
4.5
VIN(V)
5
5.5
6
0
0
500
1000
1500
Iload(mA)
Iout=14(mA)
3) Dropout Voltage vs. Output Current
4) Ripple rejection vs. Frequency
Dropout & Iout
PSRR
80
180
160
70
Vout=3.3V
60
Vout=3.3V
120
50
PSRR(dB)
Dropout(mV)
140
100
80
40
60
30
40
20
20
10
0
0
50
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100
150
200
Iout(mA)
250
300
0
0.01
350
5
0.1
1
10
Freq(KHz)
100
1000
BL8554
5) Line transient response
Cin=Cout=1uF
Iout=25mA
vout=3.3V
5V
5V
Input Voltage
Input Voltage
4V
Output Ripple Voltage
4V
Output Ripple Voltage
6) Load transient response
Cin=Cout=1uF Vin=4.5v Vout=3.3V
50mA
50mA
1mA
1mA
Output Current
Output Current
Output Voltage
Output Voltage
7) Start up from EN
8) Shut down from EN
Output Voltage
Output Voltage
CE
CE
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6
BL8554
PACKAGE OUTLINE
Package
SC70-5
Devices per reel
3000Pcs
Unit
mm
Devices per reel
3000Pcs
Unit
mm
Package dimension:
Package
SOT-23-5
Package Dimension:
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7
BL8554
Package
SOT-23-3
Devices per reel
Package Dimension:
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8
3000Pcs
Unit
mm