English

BL9110
1A Low Dropout, Low Quiescent Current
High PSRR CMOS Linear Regulator
FEATURES

PCMCIA Cards and Wireless LAN

Electrical appliances such as cameras, VCRS

Up to 1A Output Current

70uA Operating Supply Current

Excellent Line Regulation: 0.05%/V

Low Dropout: [email protected](VOUT=3.3V)
the input voltage from 2.5V to 6V and delivers 1A

High Power Supply Rejection Ratio
load current. The BL9110 is available in two types,

Wide Operating Voltage Range: 2.5V to 6.0V
either fixed or adjustable output voltage. The output

1V to 5V Factory-Preset Output
voltage of the fixed types is preset at an internally

High Accuracy: ±1% or ±2%
trimmed voltage 1V, 1.2V, 1.3V, 1.5V, 1.8V, 2.5V,

Built-in Auto Discharge Function
2.7V, 2.8V, 2.85V, 3.0V, 3.2V, 3.3V, 5V or can be

500mA in-rush Current Limit
made with options of the output range from 1V to 5V

Fold-back Current Limit Protection
in 50mV increments. The output range of adjustable

Thermal Shutdown Protection
types is from 1V to 5V. The BL9110 consists of a

DFN-6,

SOT-89-5,
SOT-89-3,
DESCRIPTION
Step-Down
Converter
The BL9110 is a low-dropout regulator that operates
,
SOT-223-5,
voltage reference, an error amplifier, resistor net for
SOT-223-3, TO-263-3, TO-220-3, TO-252-3
setting output voltage, a current limit circuit for
and TO-252-5 Package
over-current and a thermal-shutdown circuit.
RoHS Compliant and 100% Lead (Pb)-Free
A standby mode with ultra low supply current can be
realized with the chip enable function. Since the
APPLICATIONS
packages for BL9110 are DFN-6, SOT-89-5,

Portable Communication Equipment
SOT-223-5,

Battery-Powered Equipment
SOT-89-3, TO-252-3, TO92-3 and TO-252-5 with

Laptop, Palmtops, Notebook Computers
high power dissipation, high density mounting of the

Hand-Held Instruments
IC on board is possible.
ORDERING INFORMATION
BL9110-VVV X X XX
Package:
AA: DFN-6
BA: SOT-89-5-A
CA: TO-252-5
DA: SOT-223-5
EA: TO-252-3-A
FA: SOT-223-3-A
FC: SOT-223-3-C
GA: TO-263-3-A
GC: TO-263-3-C
HA: TO-220-3
IA: SOT-89-3-A
IC: SOT-89-3-C
JA:TO92-3
SOT-223-3,
TO-263-3,
TO-220-3,
TYPICAL APPLICATION
BB: SOT-89-5-B
EB: TO-252-3-B
FB: SOT-223-3-B
FD: SOT-223-3-D
GB: TO-263-3-B
VDD
VDD
VOUT
VOUT
C1
10uF
C2
2.2uF
Chip
Enable
IB: SOT-89-3-B
BL9110
CE
GND
Features:
P: Standard (default, lead free)
C: Customized
Output Voltage Accuracy
A: ±1%
B: ±2%
Output Voltage
100:1.0V 120:1.2V 130:1.3V 150:1.5V
180:1.8V 250:2.5V 270:2.7V 280:2.8V
285:2.85V 300:3.0V 320:3.2V 330:3.3V
500:5.0V
ADJ: adjustable
PPMIC BU
BL9110 Rev 1.9
11/2012
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1
BL9110
1A Low Dropout, Low Quiescent Current
High PSRR CMOS Linear Regulator
Absolute Maximum Rating
Input Supply Voltage (VDD)
CE Input Voltage
Output Voltage
Output Current
(Note 1)
-0.3V to +7V
-0.3V to +7V
-0.3V to VIN+0.3V
1.4A
Maximum Junction Temperature
125°C
(Note2)
Operating Temperature Range
-40°C to 85°C
Storage Temperature Range
-65°C to 125°C
Lead
Temperature
(Soldering,
10s)
300°C
Step-Down Converter
,
Package Information
DFN-6
TOP VIEW
2
GND
3
VDD
NC/ADJ 1
5
VDD
GND
2
4
CE
CE
3
5
VOUT
CE 1
GND
4
VDD
2
TO-252-5
TOP VIEW
5
VOUT
4
VDD
MARKING
VOUT
6
MARKING
1
MARKING
VOUT
SOT-89-5
TOP VIEW
SOT-89-5
TOP VIEW
NC/ADJ 3
MARKING
1
2
3
VOUT GND GND
AA
BA
4
5
CE
VDD
BB
CA
Part Number
BL9110-VVVXXAA
BL9110-VVVXXBA/B
BL9110-VVVXXCA
PPMIC BU
BL9110 Rev 1.9
11/2012
Top Mark
Temp Range
BL9110AA
YWSS VVV (Note3)
BL9110BA/B
-40°C to +85°C
-40°C to +85°C
YWSS VVV
BL9110CA
-40°C to +85°C
YWSS VVV
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2
BL9110
1A Low Dropout, Low Quiescent Current
High PSRR CMOS Linear Regulator
SOT-223-3
TOP VIEW
SOT-223-5
TOP VIEW
TO-263-3
TOP VIEW
Step-Down Converter
MARKING
MARKING
,
MARKING
1
DA
2
3
VDD VOUT GND
4
5
ADJ
CE
FA
FB
FC
FD
Part Number
11/2012
VOUT
GND
GND
VDD
GND
VOUT
VDD
GND
VDD
VDD
VOUT
VOUT
YWSS VVV
BL9110EA/B
YWSS VVV
BL9110-VVVXXFA/B/C/D
BL9110 Rev 1.9
3
BL9110DA
BL9110-VVVXXEA/B
PPMIC BU
2
Top Mark
BL9110-VVVXXDA
BL9110-VVVXXGA/B/C
1
BL9110FA/B/C/D
YWSS VVV
BL9110GA/B/C
YWSS VVV
1
GA
GB
GC
GND
GND
VDD
3
VOUT
VDD
GND
Temp Range
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
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2
3
VDD
VOUT
VOUT
BL9110
1A Low Dropout, Low Quiescent Current
High PSRR CMOS Linear Regulator
SOT-89-3
TOP VIEW
TO92
TOPVIEW
Step-Down Converter
MARKING
IA
IB
IC
MARKING
,
1
2
3
GND
GND
VOUT
VOUT
VDD
GND
VDD
VOUT
VDD
JA
HA
Part Number
BL9110-VVVXXHA
BL9110-VVVXXI/A/B/C
BL9110-VVVXXJA
PPMIC BU
BL9110 Rev 1.9
11/2012
Top Mark
1
2
3
GND
VOUT
VDD
Temp Range
BL9110HA
-40°C to +85°C
YWSS VVV
BL9110IA/B/C
-40°C to +85°C
YWSS VVV
BL9110JA
-40°C to +85°C
YWSS VVV
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4
BL9110
1A Low Dropout, Low Quiescent Current
High PSRR CMOS Linear Regulator
Pin Descriptions
Symbol
Description
VOUT
Output Pin
GND
Ground Pin
CE
Chip Enable Pin (High active)
VDD
Input Pin
ADJ/NC
Adjustable/No Connection
Step-Down Converter
,
VVV
100
120
130
…
285
…
495
500
ADJ
Voltage (V)
1.0
1.2
1.3
…
2.85
…
4.95
5.0
Adjustable
Y
0
1
2
3
4
…
Year 2010 2011 2012 2013 2014 ……
W
Week
01
A
2
B
…
…
26
Z
27
28
…
…
52
Thermal Resistance (Note 4):
Package
ӨJA
ӨJC
DFN-6
95C/W
10C/W
SOT-89-5
160C/W
45C/W
TO-252-5
90C/W
10C/W
SOT-223-5
160C/W
20C/W
TO-252-3
90C/W
10C/W
SOT-223-3
160C/W
20C/W
TO-263-3
65C/W
7C/W
TO-220-3
50C/W
7C/W
SOT89-3
180C/W
50C/W
Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired.
Note 2: The BL9110 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: Y: Year of assembly manufacturing
W: Week of assembly manufacturing
SS: Lot ID (the 7th and 8th number of Lot numbers)
VVV: Voltage code (for example 100 stands for 1.0V)
Note 4: Thermal Resistance is specified with approximately 1 square of 1 oz copper.
PPMIC BU
BL9110 Rev 1.9
11/2012
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5
BL9110
1A Low Dropout, Low Quiescent Current
High PSRR CMOS Linear Regulator
Block Diagram
Step-Down Converter
VDD
Voltage
Reference
-
Voltage
Buffer
EA
+
ADJ
Loop
Compensation
Fold-back
Current Limit
Over
Temperature
Protection
CE
,
Logic
Control
Power Good
Detector
VOUT
Soft-start
GND
PPMIC BU
BL9110 Rev 1.9
11/2012
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6
BL9110
1A Low Dropout, Low Quiescent Current
High PSRR CMOS Linear Regulator
Electrical Characteristics (Note 5)
BL9110-1.2V Electrical Characteristics
(VDD=2.5V, VOUT=1.2V, CE=VDD, CIN=2.2F, COUT=2.2F, TA=25°C, unless otherwise noted.)
Parameter
Symbol Step-Down
Conditions
MIN
TYP MAX
Converter
Input Voltage
VDD
2.5
6
-1
+1
(Note 6)
IOUT=1mA
VOUT
Output Voltage Accuracy
-2
+2
Current Limit
ILIM
1.0
1.3
Short Circuit Current
ISCC
VOUT=0
250
Quiescent Current
IQ
IOUT=0mA
70
120
Standby Current
ISTBY
VCE=GND, Shutdown
0.01
1
IOUT=300mA
420
715
(note 7)
VDROP
Dropout Voltage
IOUT=1A
870 1310
(Note 8)
ΔVLINE
2.5V≤VDD≤ 6V, IOUT=100mA
0.05
0.5
Line Regulation
(Note 9)
ΔV
1mA≤I
≤1A
20
Load Regulation
LOAD
OUT
(Note 10)
IOUT=100mA
Output Voltage
TCVOUT
±100
-40°C≤T≤85°C
Temperature Coefficient
Logic Low
VIL
Shutdown
0.4
CE
Input Threshold
Logic High
VIH
Start up
1.0
CE Pull-down Resistance
RCE
5
Output Noise Voltage
eNO
10Hz to100KHz, IOUT=1mA
45
f=1kHz
70
(VOUT≤3.3V)
Power Supply
0.2VP-P Ripple
PSRR
Rejection Ratio
IOUT=100mA
f=1kHz
60
(VOUT>3.3V)
Thermal Shutdown Temperature
TSD
Shutdown, Temp increasing
165
Thermal Shutdown Hysteresis
TSDHY
30
Output Discharge Resistance
RDSC
50
unit
,V
%
A
mA
uA
uA
mV
%/V
mV
ppm/°C
V
V
MΩ
VRMS
dB
°C
°C
Ω
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%.
Note 7: The required minimum input operating voltage is equal to V OUT+VDROP, and if VOUT+VDROP <2.5V, the required
minimum input operating voltage must be set to 2.5V. VOUT is the normal output voltage, e.g. VOUT=2.8V for 2.8V fixed
output version.
 VOUT 1  VOUT 2 
Note 8: Line regulation is calculated by V
 100
LINE  
 VDD VOUT 
Where VOUT1 is the output voltage when VDD1=6.0V, VOUT2 is the output voltage when VDD2= max (VOUT+0.5V, 2.5V).
△VDD=VDD1-VDD2.
Note 9: Load regulation is calculated by VLOAD  VOUT 1  VOUT 2
Where VOUT1 is the output voltage when IOUT1=1mA, and VOUT2 is the output voltage when IOUT2=1A.
Note 10: The temperature coefficient is calculated by TC
VOUT 
PPMIC BU
BL9110 Rev 1.9
11/2012
VOUT
T  VOUT
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7
BL9110
1A Low Dropout, Low Quiescent Current
High PSRR CMOS Linear Regulator
BL9110-1.5V Electrical Characteristics
(VDD=2.5V, VOUT=1.5V, CE=VDD, CIN=2.2F, COUT=2.2F, TA=25°C, unless otherwise noted.)
Parameter
Symbol
Conditions
MIN
TYP MAX
Input Voltage
VDD
2.5
6
-1
+1
(Note 6)
Converter-2
IOUT=1mA
VOUT Step-Down
Output Voltage Accuracy
+2
Current Limit
ILIM
1.0
1.3
Short Circuit Current
ISCC
VOUT=0
250
Quiescent Current
IQ
IOUT=0mA
70
120
Standby Current
ISTBY
VCE=GND, Shutdown
0.01
1
I
=300mA
260
445
OUT
(note 7)
VDROP
Dropout Voltage
IOUT=1A
700 1050
(Note 8)
ΔVLINE
2.5V≤VDD≤ 6V, IOUT=100mA
0.05
0.5
Line Regulation
(Note 9)
ΔVLOAD
1mA≤IOUT≤1A
20
Load Regulation
(Note 10)
I
=100mA
Output Voltage
OUT
TCVOUT
±100
-40°C≤T≤85°C
Temperature Coefficient
Logic Low
VIL
Shutdown
0.4
CE
Input Threshold
Logic High
VIH
Start up
1.0
CE Pull-down Resistance
RCE
5
Output Noise Voltage
eNO
10Hz to100KHz, IOUT=1mA
45
f=1kHz
70
(VOUT≤3.3V)
Power Supply
0.2VP-P Ripple
PSRR
Rejection Ratio
IOUT=100mA
f=1kHz
60
(VOUT>3.3V)
Thermal Shutdown Temperature
TSD
Shutdown, Temp increasing
165
Thermal Shutdown Hysteresis
TSDHY
30
Output Discharge Resistance
RDSC
50
unit
V
%
,A
mA
uA
uA
mV
%/V
mV
ppm/°C
V
V
MΩ
VRMS
dB
°C
°C
Ω
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%.
Note 7: The required minimum input operating voltage is equal to V OUT+VDROP, and if VOUT+VDROP <2.5V, the required
minimum input operating voltage must be set to 2.5V. VOUT is the normal output voltage, e.g. VOUT=2.8V for 2.8V fixed
output version.
 VOUT 1  VOUT 2 
Note 8: Line regulation is calculated by V
 100
LINE  
 VDD VOUT 
Where VOUT1 is the output voltage when VDD1=6.0V, VOUT2 is the output voltage when VDD2= max (VOUT+0.5V, 2.5V).
△VDD=VDD1-VDD2.
Note 9: Load regulation is calculated by VLOAD  VOUT 1  VOUT 2
Where VOUT1 is the output voltage when IOUT1=1mA, and VOUT2 is the output voltage when IOUT2=1.0A.
Note 10: The temperature coefficient is calculated by TC
VOUT 
PPMIC BU
BL9110 Rev 1.9
11/2012
VOUT
T  VOUT
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8
BL9110
1A Low Dropout, Low Quiescent Current
High PSRR CMOS Linear Regulator
BL9110-1.8V Electrical Characteristics
(VDD=2.8V, VOUT=1.8V, CE=VDD, CIN=2.2F, COUT=2.2F, TA=25°C, unless otherwise noted.)
Parameter
Symbol
Conditions
MIN
TYP MAX
Input Voltage
VDD
2.5
6
-1
+1
(Note 6)
Converter-2
IOUT=1mA
VOUT Step-Down
Output Voltage Accuracy
+2
Current Limit
ILIM
1.0
1.3
Short Circuit Current
ISCC
VOUT=0
250
Quiescent Current
IQ
IOUT=0mA
70
120
Standby Current
ISTBY
VCE=GND, Shutdown
0.01
1
I
=300mA
180
308
OUT
(note 7)
VDROP
Dropout Voltage
IOUT=1A
570
855
(Note 8)
ΔVLINE
2.5V≤VDD≤ 6V, IOUT=100mA
0.05
0.5
Line Regulation
(Note 9)
ΔVLOAD
1mA≤IOUT≤1A
20
Load Regulation
(Note 10)
I
=100mA
Output Voltage
OUT
TCVOUT
±100
-40°C≤T≤85°C
Temperature Coefficient
Logic Low
VIL
Shutdown
0.4
CE
Input Threshold
Logic High
VIH
Start up
1.0
CE Pull-down Resistance
RCE
5
Output Noise Voltage
eNO
10Hz to100KHz, IOUT=1mA
45
f=1kHz
70
(VOUT≤3.3V)
Power Supply
0.2VP-P Ripple
PSRR
Rejection Ratio
IOUT=100mA
f=1kHz
60
(VOUT>3.3V)
Thermal Shutdown Temperature
TSD
Shutdown, Temp increasing
165
Thermal Shutdown Hysteresis
TSDHY
30
Output Discharge Resistance
RDSC
50
unit
V
%
,A
mA
uA
uA
mV
%/V
mV
ppm/°C
V
V
MΩ
VRMS
dB
°C
°C
Ω
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%.
Note 7: The required minimum input operating voltage is equal to V OUT+VDROP, and if VOUT+VDROP <2.5V, the required
minimum input operating voltage must be set to 2.5V. VOUT is the normal output voltage, e.g. VOUT=2.8V for 2.8V fixed
output version.
 VOUT 1  VOUT 2 
Note 8: Line regulation is calculated by V
 100
LINE  
 VDD VOUT 
Where VOUT1 is the output voltage when VDD1=6.0V, VOUT2 is the output voltage when VDD2= max (VOUT+0.5V, 2.5V).
△VDD=VDD1-VDD2.
Note 9: Load regulation is calculated by VLOAD  VOUT 1  VOUT 2
Where VOUT1 is the output voltage when IOUT1=1mA, and VOUT2 is the output voltage when IOUT2=1.0A.
Note 10: The temperature coefficient is calculated by TC
VOUT 
PPMIC BU
BL9110 Rev 1.9
11/2012
VOUT
T  VOUT
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9
BL9110
1A Low Dropout, Low Quiescent Current
High PSRR CMOS Linear Regulator
BL9110-2.5V Electrical Characteristics
(VDD=3.5V, VOUT=2.5V, CE=VDD, CIN=2.2F, COUT=2.2F, TA=25°C, unless otherwise noted.)
Parameter
Symbol
Conditions
MIN
TYP MAX
Input Voltage
VDD
2.5
6
-1
+1
(Note 6)
Converter-2
IOUT=1mA
VOUT Step-Down
Output Voltage Accuracy
+2
Current Limit
ILIM
1.0
1.3
Short Circuit Current
ISCC
VOUT=0
250
Quiescent Current
IQ
IOUT=0mA
70
120
Standby Current
ISTBY
VCE=GND, Shutdown
0.01
1
I
=300mA
140
240
OUT
(note 7)
VDROP
Dropout Voltage
IOUT=1A
440
660
(Note 8)
ΔVLINE
3.0V≤VDD≤ 6V, IOUT=100mA
0.05
0.5
Line Regulation
(Note 9)
ΔVLOAD
1mA≤IOUT≤1A
20
Load Regulation
(Note 10)
I
=100mA
Output Voltage
OUT
TCVOUT
±100
-40°C≤T≤85°C
Temperature Coefficient
Logic Low
VIL
Shutdown
0.4
CE
Input Threshold
Logic High
VIH
Start up
1.0
CE Pull-down Resistance
RCE
5
Output Noise Voltage
eNO
10Hz to100KHz, IOUT=1mA
45
f=1kHz
70
(VOUT≤3.3V)
Power Supply
0.2VP-P Ripple
PSRR
Rejection Ratio
IOUT=100mA
f=1kHz
60
(VOUT>3.3V)
Thermal Shutdown Temperature
TSD
Shutdown, Temp increasing
165
Thermal Shutdown Hysteresis
TSDHY
30
Output Discharge Resistance
RDSC
50
unit
V
%
,A
mA
uA
uA
mV
%/V
mV
ppm/°C
V
V
MΩ
VRMS
dB
°C
°C
Ω
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%.
Note 7: The required minimum input operating voltage is equal to V OUT+VDROP, and if VOUT+VDROP <2.5V, the required
minimum input operating voltage must be set to 2.5V. VOUT is the normal output voltage, e.g. VOUT=2.8V for 2.8V fixed
output version.
 VOUT 1  VOUT 2 
Note 8: Line regulation is calculated by V
 100
LINE  
 VDD VOUT 
Where VOUT1 is the output voltage when VDD1=6.0V, VOUT2 is the output voltage when VDD2= max (VOUT+0.5V, 2.5V).
△VDD=VDD1-VDD2.
Note 9: Load regulation is calculated by VLOAD  VOUT 1  VOUT 2
Where VOUT1 is the output voltage when IOUT1=1mA, and VOUT2 is the output voltage when IOUT2=1.0A.
Note 10: The temperature coefficient is calculated by TC
VOUT 
PPMIC BU
BL9110 Rev 1.9
11/2012
VOUT
T  VOUT
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10
BL9110
1A Low Dropout, Low Quiescent Current
High PSRR CMOS Linear Regulator
BL9110-3.3V Electrical Characteristics
(VDD=4.3V, VOUT=3.3V, CE=VDD, CIN=2.2F, COUT=2.2F, TA=25°C, unless otherwise noted.)
Parameter
Symbol
Conditions
MIN
TYP MAX
Input Voltage
VDD
2.5
6
-1
+1
(Note 6)
Converter-2
IOUT=1mA
VOUT Step-Down
Output Voltage Accuracy
+2
Current Limit
ILIM
1.0
1.3
Short Circuit Current
ISCC
VOUT=0
250
Quiescent Current
IQ
IOUT=0mA
70
120
Standby Current
ISTBY
VCE=GND, Shutdown
0.01
1
I
=300mA
110
188
OUT
(note 7)
VDROP
Dropout Voltage
IOUT=1A
350
525
(Note 8)
ΔVLINE
3.8V≤VDD≤ 6V, IOUT=100mA
0.05
0.5
Line Regulation
(Note 9)
ΔVLOAD
1mA≤IOUT≤1A
20
Load Regulation
(Note 10)
I
=100mA
Output Voltage
OUT
TCVOUT
±100
-40°C≤T≤85°C
Temperature Coefficient
Logic Low
VIL
Shutdown
0.4
CE
Input Threshold
Logic High
VIH
Start up
1.0
CE Pull-down Resistance
RCE
5
Output Noise Voltage
eNO
10Hz to100KHz, IOUT=1mA
45
f=1kHz
70
(VOUT≤3.3V)
Power Supply
0.2VP-P Ripple
PSRR
Rejection Ratio
IOUT=100mA
f=1kHz
60
(VOUT>3.3V)
Thermal Shutdown Temperature
TSD
Shutdown, Temp increasing
165
Thermal Shutdown Hysteresis
TSDHY
30
Output Discharge Resistance
RDSC
50
unit
V
%
,A
mA
uA
uA
mV
%/V
mV
ppm/°C
V
V
MΩ
VRMS
dB
°C
°C
Ω
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%.
Note 7: The required minimum input operating voltage is equal to V OUT+VDROP, and if VOUT+VDROP <2.5V, the required
minimum input operating voltage must be set to 2.5V. VOUT is the normal output voltage, e.g. VOUT=2.8V for 2.8V fixed
output version.
 VOUT 1  VOUT 2 
Note 8: Line regulation is calculated by V
 100
LINE  
 VDD VOUT 
Where VOUT1 is the output voltage when VDD1=6.0V, VOUT2 is the output voltage when VDD2= max (VOUT+0.5V, 2.5V).
△VDD=VDD1-VDD2.
Note 9: Load regulation is calculated by VLOAD  VOUT 1  VOUT 2
Where VOUT1 is the output voltage when IOUT1=1mA, and VOUT2 is the output voltage when IOUT2=1.0A.
Note 10: The temperature coefficient is calculated by TC
VOUT 
PPMIC BU
BL9110 Rev 1.9
11/2012
VOUT .
T  VOUT
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11
BL9110
1A Low Dropout, Low Quiescent Current
High PSRR CMOS Linear Regulator
BL9110-5.0V Electrical Characteristics
(VDD=6.0V, VOUT=5.0V, CE=VDD, CIN=2.2F, COUT=2.2F, TA=25°C, unless otherwise noted.)
Parameter
Symbol
Conditions
MIN
TYP MAX
Input Voltage
VDD
2.5
6
-1
+1
(Note 6)
Converter-2
IOUT=1mA
VOUT Step-Down
Output Voltage Accuracy
+2
Current Limit
ILIM
1.0
1.3
Short Circuit Current
ISCC
VOUT=0
250
Quiescent Current
IQ
IOUT=0mA
70
120
Standby Current
ISTBY
VCE=GND, Shutdown
0.01
1
I
=300mA
100
170
OUT
(note 7)
VDROP
Dropout Voltage
IOUT=1A
340
510
(Note 8)
ΔVLINE
5.5V≤VDD≤ 6V, IOUT=100mA
0.05
0.5
Line Regulation
(Note 9)
ΔVLOAD
1mA≤IOUT≤1A
20
Load Regulation
(Note 10)
I
=100mA
Output Voltage
OUT
TCVOUT
±100
-40°C≤T≤85°C
Temperature Coefficient
Logic Low
VIL
Shutdown
0.4
CE
Input Threshold
Logic High
VIH
Start up
1.0
CE Pull-down Resistance
RCE
5
Output Noise Voltage
eNO
10Hz to100KHz, IOUT=1mA
45
f=1kHz
70
(VOUT≤3.3V)
Power Supply
0.2VP-P Ripple
PSRR
Rejection Ratio
IOUT=100mA
f=1kHz
60
(VOUT>3.3V)
Thermal Shutdown Temperature
TSD
Shutdown, Temp increasing
165
Thermal Shutdown Hysteresis
TSDHY
30
Output Discharge Resistance
RDSC
50
unit
V
%
,A
mA
uA
uA
mV
%/V
mV
ppm/°C
V
V
MΩ
VRMS
dB
°C
°C
Ω
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%.
Note 7: The required minimum input operating voltage is equal to V OUT+VDROP, and if VOUT+VDROP <2.5V, the required
minimum input operating voltage must be set to 2.5V. VOUT is the normal output voltage, e.g. VOUT=2.8V for 2.8V fixed
output version.
 VOUT 1  VOUT 2 
Note 8: Line regulation is calculated by V
 100
LINE  
 VDD VOUT 
Where VOUT1 is the output voltage when VDD1=6.0V, VOUT2 is the output voltage when VDD2= max (VOUT+0.5V, 2.5V).
△VDD=VDD1-VDD2.
Note 9: Load regulation is calculated by VLOAD  VOUT 1  VOUT 2
Where VOUT1 is the output voltage when IOUT1=1mA, and VOUT2 is the output voltage when IOUT2=1.0A.
Note 10: The temperature coefficient is calculated by TC
VOUT 
PPMIC BU
BL9110 Rev 1.9
11/2012
VOUT .
T  VOUT
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BL9110
1A Low Dropout, Low Quiescent Current
High PSRR CMOS Linear Regulator
Typical Performance Characteristic
(VDD=VOUT+1V, and if VOUT<1.5V, VDD=2.5V CE=VDD, CIN=2.2F, COUT=2.2F, TA=25°C, unless
otherwise noted.)
Step-Down Converter
Output Voltage VS. Input Voltage
Dropout Voltage VS. Output Current
BL9110-1.0V
1.2
1.2
1.0
1.0
-40oC
25oC
85oC
0.8
IOUT=1mA
0.6
0.6
IOUT=99mA
IOUT=300mA
0.4
0.4
IOUT=1A
0.2
0.2
Dropout Voltage (mV)
Output Voltage (V)
500
0.8
,
BL9110-3.3V
550
450
400
350
300
250
200
150
100
0.0
50
0.0
0
1
2
3
4
5
6
0
0.0
Input Voltage (V)
0.2
0.4
0.6
0.8
1.0
Output Current (A)
Output Voltage VS. Input Voltage
Output Voltage VS. Temperature
BL9110-3.3V
3.5
BL9110-3.3V
3.40
IOUT=1mA
Output Voltage (V)
2.5
2.0
IOUT=1mA
1.5
IOUT=99mA
IOUT=300mA
1.0
IOUT=100mA
3.35
3.30
3.25
0.5
0.0
0.0
3.20
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
Input Voltage (V)
-40
-20
0
20
40
60
80
Temperature (oC)
Quiescent Current VS. Input Voltage
Quiescent Current VS. Temperature
BL9110-3.3V
BL9110-3.3V
100
80
95
Quiescent Current (uA)
Quiescent Current (uA)
Output Voltage (V)
3.0
60
40
20
90
85
80
75
70
65
0
-40
-30
-20
-10
0
10
20
30
40
50
60
70
80
60
3.5
4.0
Temperature (oC)
PPMIC BU
BL9110 Rev 1.9
11/2012
4.5
5.0
5.5
6.0
Input Voltage (V)
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BL9110
1A Low Dropout, Low Quiescent Current
High PSRR CMOS Linear Regulator
Turn on Transient Response
Output Voltage VS. Output Current
BL9110-3.3V
BL9110-3.3V
3.5
CH1: EN Pin Voltage (V)
Output Voltage (V)
3.0
Step-Down Converter
2.5
CH4: Output Voltage (V)
,
2.0
1.5
1.0
0.5
CH2: Input Inrush Current (mA)
0.0
0.0
0.2
0.4
0.6
0.8
1.0
1.2
Output Current (A)
Turn off Transient Response
Turn off Transient Response
BL9110-3.3V
BL9110-3.3V
100mA, resistive load
No load
CH1: EN Pin Voltage (V)
CH1: EN Pin Voltage (V)
CH4: Output Voltage (V)
CH4: Output Voltage (V)
Load Transient Response
Load Transient Response
BL9110-3.3V
BL9110-3.3V
500mA
CH2: Output Current (mA)
100mA
50mA
CH2: Output Current (mA)
100mA
CH4: Output Voltage (mV)
PPMIC BU
BL9110 Rev 1.9
11/2012
CH4: Output Voltage (mV)
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14
BL9110
1A Low Dropout, Low Quiescent Current
High PSRR CMOS Linear Regulator
Line Transient Response
Line Transient Response
BL9110-3.3V
BL9110-3.3V
IOUT=1mA
IOUT=100mA
Step-Down Converter
,
PPMIC BU
BL9110 Rev 1.9
11/2012
CH2: Input Voltage (V)
CH2: Input Voltage (V)
CH4: Output Voltage (mV)
CH4: Output Voltage (mV)
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BL9110
1A Low Dropout, Low Quiescent Current
High PSRR CMOS Linear Regulator
Applications Information
The BL9110 is a low dropout CMOS-based
is to choose R2=20kΩ to set the divider
positive voltage regulator that operatesStep-Down
the
current Converter
at 50uA, and then calculate R1
input voltage from +2.5V to 6.0V. Output
using Equation as below:
,
voltages are optional ranging from 1.0V to
 VOUT 
R1  
 1  R 2
5.0V, and can supply current up to 1.0 A.
 VREF 
Enable Function
The BL9110 is shutdown by pulling the CE
input low, and turn on by driving the input
high. If this feature is not be used, the CE
input should be floating or tied to VDD to
keep the regulator on at all times.
Programming the BL9110 Adjustable
LDO regulator
The BL9110 is available in two types, either
fixed or adjustable output voltage. The
output range of the adjustable types is from
1V to 5V. The output voltage of the BL9110
adjustable regulator is programmed using
an external resistor divider as show in
Figure as below. The output voltage is
calculated using equation as below:
Where VREF=1V is the internal reference
voltage.
Resistors R1 and R2 should be chosen for
approximately 50uA divider current. Lower
value resistors can be used for improved
noise performance, but the solution
consumes more power. Higher resistor
values should be avoided as leakage
current at ADJ increases the output voltage
error. The recommended design procedure
BL9110 Rev 1.9
11/2012
OUTPUT VOLTAGE
PROGRAMMING GUIDE
OUTPUT
VOLTAGTE
R1
R2
1.8V
16 kΩ
20 kΩ
2.5V
30 kΩ
20 kΩ
3.3V
51 kΩ
22 kΩ
3.6V
62 kΩ
24 kΩ
BL9110 Adjustable LDO regulator
Programming
VDD
C1
10uF
VDD
VOUT
VOUT
R1
GND
C3
C2
2.2uF
BL9110
ADJ
CE
R1 

VOUT  VREF  1 

 R2 
PPMIC BU
A small compensation capacitor C3 placed
between VOUT and ADJ may improve the
stability of the adjustable. The suggested
value of this capacitor is about 10pF to
22pF.
R2
Thermal Protection
Thermal overload protection limits total
power dissipation in the BL9110. When the
junction temperature exceeds TJ=165°C,
the OTP circuit starts the thermal shutdown
function and turns the pass element off
allowing the IC to cool. The OTP circuit
turns on the pass element again after IC’s
junction temperature cool by 30°C, result in
a pulsed output during continuous thermal
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BL9110
1A Low Dropout, Low Quiescent Current
High PSRR CMOS Linear Regulator
overload conditions. Thermal-overloaded
capacitors used with the BL9110 must be
protection is designed to protect the
carefully selected for regulator stability and
BL9110 in the event of fault conditions. Do
performance. The BL9110 requires an
not exceed the absolute maximum junction
output capacitor between the VOUT and
Step-Down
Converter
temperature rating of TJ=125°C for
GND pins for phase compensation. Using a
,
continuous
operation.
The
build-in
capacitor whose value is ≥1μF on the
fold-back current limit protection circuit will
BL9110 input and the amount of
reduce current value as output voltage
capacitance can be increased without limit.
drops. When output is shorted to ground,
The input capacitor must be located a
current limit is reduced to 250mA, avoiding
distance of not more than 0.5 inch from the
damaging the device.
input pin of the IC and returned to a clean
analog ground. Any good quality ceramic or
Operating Region and Power
tantalum can be used for this capacitor.
Dissipation
The capacitor with larger value and lower
ESR
(equivalent
series
resistance)
The maximum power dissipation of BL9110
provides better PSRR and line-transient
depends on the thermal resistance of the
response. The output capacitor must meet
case and circuit board, the temperature
both requirements for minimum amount of
difference between the die junction and
capacitance and ESR in all LDO
ambient air, and the rate of airflow. The
applications. The BL9110 is designed
power dissipation across the device is
specifically to work with low ESR ceramic
output capacitor in space-saving and
PD = (VDD−VOUT) ×IOUT + VDD×IQ
performance consideration. In the BL9110,
phase compensation is made with the
The maximum power dissipation is:
output capacitor for securing stable
operation even if the load current is varied.
PD (MAX) = (TJ (MAX) − TA) /θJA
For this purpose, use a 2.2uF capacitor
between VOUT pin and GND pin as close
Where TJ (MAX) is the maximum operation
as possible.
junction temperature 125°C, TA is the
ambient temperature and the θJA is the
Load-Transient Considerations
junction to ambient thermal resistance. The
GND pin of the BL9110 performs the dual
The BL9110 load-transient response
function of providing an electrical
graphs show two components of the output
connection to ground and channeling heat
response: a DC shift from the output
away. Connect the GND pin to ground
impedance due to the load current change,
using a large pad or ground plane.
and the transient response. The DC shift is
Capacitor Selection and Regulator
quite small due to the excellent load
Stability
regulation of the IC. Typical output voltage
transient spike for a step change in the load
Like any low-dropout regulator, the external
current from 0mA to 50mA is tens of mV,
PPMIC BU
BL9110 Rev 1.9
11/2012
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17
BL9110
1A Low Dropout, Low Quiescent Current
High PSRR CMOS Linear Regulator
depending on the ESR of the output
capacitor. Increasing the output capacitor's
value and decreasing the ESR attenuates
the overshoot.
Layout Considerations
To improve AC performance such as PSRR,
response, it is
,
recommended that the PCB be designed
with separate ground planes for VDD and
VOUT, with each ground plane connected
only at the GND pin of the device. Make
VDD and GND lines sufficiently wide. If
their impedance is high, noise pickup or
unstable operation may result. Connect a
capacitor C1 between VDD and GND pin,
as close as possible to the pins. Set
external components, especially the output
capacitor C2, as close as possible to the IC,
and make wiring as short as possible.
Step-Down
Converter
output noise,
and transient
Input-Output (Dropout) Voltage
A regulator's minimum input-output voltage
differential (or dropout voltage) determines
the lowest usable supply voltage. In
battery-powered
systems,
this
will
determine the useful end-of-life battery
voltage. Because the BL9110 uses a
P-Channel MOSFET pass transistor, the
dropout voltage is a function of
drain-to-source on resistance [RDS(ON)]
multiplied by the load current.
BL9110 SOT89-5 PCB Layout for Reference
Top Layer
PPMIC BU
BL9110 Rev 1.9
11/2012
Bottom Layer
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18
BL9110
1A Low Dropout, Low Quiescent Current
High PSRR CMOS Linear Regulator
Package Description
DFN-6
Step-Down Converter
,
Dimensions In Millimeters
Symbol
A
A1
b
c
D
D2
e
Nd
E
E2
L
h
Min
NOM
Max
0.7
0.75
0.8
0.02
0.05
0.25
0.3
0.35
0.18
0.2
0.25
1.95
2
2.05
1
1.45
0.65BSC
1.30BSC
1.95
2
0.50
2.05
0.85
0.25
0.30
0.40
0.1
0.15
0.2
DFN-6 Surface Mount Package
PPMIC BU
BL9110 Rev 1.9
11/2012
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19
BL9110
1A Low Dropout, Low Quiescent Current
High PSRR CMOS Linear Regulator
SOT89-5
Step-Down Converter
,
Symbol
A
b
b1
B
C
C1
D
D1
e
H
Dimensions In Millimeters
Min
Dimensions In Inches
Max
1.397
1.600
0.356
0.508
0.406
0.533
2.388
2.591
3.937
4.242
0.787
1.194
4.394
4.597
1.397
1.702
1.500 TYP.
0.356
0.432
Min
Max
0.055
0.063
0.014
0.020
0.016
0.021
0.094
0.102
0.155
0.167
0.031
0.047
0.173
0.181
0.055
0.067
0.060 TYP.
0.014
0.017
SOT89-5 Surface Mount Package
PPMIC BU
BL9110 Rev 1.9
11/2012
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BL9110
1A Low Dropout, Low Quiescent Current
High PSRR CMOS Linear Regulator
SOT-223-3
Package
SOT-223
Package specification:
Devices per reel
2500
Unit
mm
Step-Down Converter
MIN
A
A1
A2
A3
b
b1
b2
b3
c
c1
D
D1
E
E1
e
e1
L
L1
L2
θ
θ 1
PPMIC BU
BL9110 Rev 1.9
11/2012
NOM
1.50
0.02
1.45
0.80
0.67
0.66
2.96
2.95
0.30
0.29
6.35
6.30
6.80
3.40
,
1.65
0.06
1.60
0.90
0.71
3.00
0.30
6.50
7.00
3.50
2.30BSC
4.60BSC
0.80 1.00 1.20
1.75REF
0.25BSC
0°
8°
10° 12° 14°
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MAX
.
1.80
0.10
1.75
1.00
0.80
0.75
3.09
3.05
0.35
0.31
7.05
6.70
7.20
3.60
21
BL9110
1A Low Dropout, Low Quiescent Current
High PSRR CMOS Linear Regulator
Taping dimension:
Step-Down Converter
,
Taping reel dimension:
PPMIC BU
BL9110 Rev 1.9
11/2012
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BL9110
1A Low Dropout, Low Quiescent Current
High PSRR CMOS Linear Regulator
SOT-223-5
Step-Down Converter
,
PPMIC BU
BL9110 Rev 1.9
11/2012
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23
BL9110
1A Low Dropout, Low Quiescent Current
High PSRR CMOS Linear Regulator
Package
TO-252-3
TO252-3
Devices per reel
2500
Step-Down Converter
,
Taping dimension:
PPMIC BU
BL9110 Rev 1.9
11/2012
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BL9110
1A Low Dropout, Low Quiescent Current
High PSRR CMOS Linear Regulator
Step-Down Converter
,
TO-252-5
PPMIC BU
BL9110 Rev 1.9
11/2012
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25
BL9110
1A Low Dropout, Low Quiescent Current
High PSRR CMOS Linear Regulator
Step-Down Converter
,
Symbol
A1
A2
A3
b
b1
c
c1
D
D1
E1
e
L
L1
L2
Θ
Dimensions In Millimeters
MIN
0.05
2.1
0.5
0.46
0.45
0.49
0.48
6.3
5.30
1.40
3.0
NOM
0.15
2.3
0.6
MAX
0.25
2.5
0.7
0.6
0.5
0.55
0.5
6.5
5.30 REF
5.50
1.27BSC
1.50
3.1
1.40BSC
0
0.56
0.52
6.7
5.70
1.60
3.2
8°
TO-263-3
PPMIC BU
BL9110 Rev 1.9
11/2012
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26
BL9110
1A Low Dropout, Low Quiescent Current
High PSRR CMOS Linear Regulator
Step-Down Converter
,
PPMIC BU
BL9110 Rev 1.9
11/2012
www.belling.com.cn
Belling Proprietary Information. Unauthorized Photocopy and Duplication Prohibited
© 2011 Belling All Rights Reserved
27
BL9110
1A Low Dropout, Low Quiescent Current
High PSRR CMOS Linear Regulator
Step-Down Converter
,
PPMIC BU
BL9110 Rev 1.9
11/2012
www.belling.com.cn
Belling Proprietary Information. Unauthorized Photocopy and Duplication Prohibited
© 2011 Belling All Rights Reserved
28
BL9110
1A Low Dropout, Low Quiescent Current
High PSRR CMOS Linear Regulator
TO-220-3
Step-Down Converter
,
PPMIC BU
BL9110 Rev 1.9
11/2012
www.belling.com.cn
Belling Proprietary Information. Unauthorized Photocopy and Duplication Prohibited
© 2011 Belling All Rights Reserved
29
BL9110
1A Low Dropout, Low Quiescent Current
High PSRR CMOS Linear Regulator
SOT-89-3
Step-Down Converter
,
PPMIC BU
BL9110 Rev 1.9
11/2012
www.belling.com.cn
Belling Proprietary Information. Unauthorized Photocopy and Duplication Prohibited
© 2011 Belling All Rights Reserved
30
BL9110
1A Low Dropout, Low Quiescent Current
High PSRR CMOS Linear Regulator
TO92-3
Step-Down Converter
,
PPMIC BU
BL9110 Rev 1.9
11/2012
www.belling.com.cn
Belling Proprietary Information. Unauthorized Photocopy and Duplication Prohibited
© 2011 Belling All Rights Reserved
31