BL8568
500mA High PSRR, Linear Regulator, w. Output Discharge
DESCRIPTION
FEATURES
BL8568 series is a group of positive voltage
output, low power consumption, low dropout
voltage regulator.
Output voltage range: 1.0V~4.5V (customized
on command every 0.1V step)
Low power consumption: 35uA (Typ.)
Low output noise (47uVRMS)
Shutdown mode: 0.1uA
Low dropout voltage: 300mV@300mA (Typ.)
High ripple rejection:70dB@1KHz (Typ.)
Low temperature coefficient: ±100ppm/C
Excellent line regulation: 0.05%/V
Build-in 1.5K discharge resistor when CE low
Highly accurate: ±2%
Output current limit
Fold-back output short circuit protection
BL8568 can provide output value in the range of
1.0V~4.5V every 0.1V step. It also can be
customized on command. BL8568 can also work
under a wide input voltage ranging from 2.0V to
6V.
BL8568 includes high accuracy voltage reference,
error amplifier, current limit circuit and output
driver module.
BL8568 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%.
APPLICATIONS
BL8568 is available in SOT-23-3, SOT-23-5, SC-70-5
and DFN1x1-4 packages which is lead free.
TYPICAL APPLICATION
ELECTRICAL CHARACTERISTICS
Vout
Vin
Vin
1uF
CE
BL8568
LC1476
Vss
Vout
1uF
CE
NOTE: Input capacitor (Cin=1uF) and Output capacitor
(Cout=1uF) are recommended in all application circuit.
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Power source for cellular phones and various
kind of PCSs
Battery Powered equipment
Power Management of MP3, PDA, DSC,
Mouse, PS2 Games
Voltage Reference
Regulation after Switching Power
1
BL8568
ORDERING INFORMATION
BL8568 □
1 □
2 □
3 □
4
Code
PIN CONFIGURATION
Product Classification
Description
Temperature&Rohs:
C:-40~85C ,Pb Free Rohs Std.
Package type:
A5:SC-70-5
B3:SOT-23-3
B5A:SOT-23-5
KE:DFN1x1-4
Packing type:
TR:Tape&Reel (Standard)
Output voltage:
e.g. 15=1.5V
18=1.8V
44=4.4V
1
□
2
□
3
□
4
□
: Product Code
X: Output Voltage
ZZ: Date Code
Product Classification
X: Output Voltage
ZZ: Date Code
MARKING DESCRIPTON
: Product Code
Vout
1.0V
0
1.1V
Code
Vout
Code
2.3V
3
3.6V
6
1
2.4V
4
3.7V
7
1.2V
2
2.5V
5
3.8V
8
1.3V
3
2.6V
6
3.9V
9
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
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
X: Output Voltage
ZZ: Date Code
Product Classification
BL8568CKETR□ □
XX: Output Voltage
Vss
Vin
Vout
CE
NC
XX: Output Voltage (for DFN1X1-4).”18”stands for
1.8V,”28” stands for 2.8V,and “2 8 ” stands for 2.85V.
Z: The Year of manufacturing,”1” stands for year
2011,”2” stands for year 2012, and ”8” stands for year
2018.
Z: 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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BL8568CB5ATR□ □
: Product Code
X: Output Voltage Code (for SC70-5, SOT23-3, SOT23-5)
Code
BL8568CB3TR□ □
F: Product Code
Product Classification
Vout
BL8568CA5TR□□
2
Ground Pin
Supply Voltage Input
Output Voltage
Chip Enable
No Connection
BL8568
ABSOLUTE MAXIMUM RATING
Parameter
Value
Max Input Voltage
Operating Junction Temperature(Tj)
Output Current
Ambient Temperature(Ta)
SC70-5
SOT-23-3
Power Dissipation
SOT-23-5
DFN1x1-4
Storage Temperature(Ts)
Lead Temperature & Time
8V
125C
500mA
-40C –85C
250mW
250mW
250mW
600mW
-40C -150C
260C,10S
Note:
Heat Sink Area of PCB for DFN1x1-4 is recommended at least 2.5mmx4mm.
Exceed these limits to damage to the device.
Exposure to absolute maximum rating conditions may affect device reliability.
RECOMMENDED WORK CONDITIONS
Item
Min
Recommended
Max.
Unit
Input Voltage Range
2
6
V
Ambient Temperature*
-40
85
C
*The operation ambient temperature range is verified on several test samples. Not a test condition for volume
production whose test is only performed under 25C.
ELECTRICAL CHARACTERISTICS
(Test Conditions: Cin=1uF,Cout=1uF,TA=25C, unless otherwise specified. )
BL8568, For Arbitrary Output Voltage
Symbol
Parameter
Vin
Input Voltage
Output
Voltage
Vout
Iout (Max.)
Vdrop
Vout>1.5V
Vout
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