Solved by
SP6265
TM
Dual Low-Dropout CMOS Voltage Regulator
TSOT-26
Top View
5
SP6265Aek1
. V
OUT2
Features
•
•
•
•
•
•
•
•
•
Very Low Dropout Voltage
Guaranteed 50mA for Each Output
Accurate to Within .5% for Both Outputs
Typical 70 µA Quiescent Current
Over-Temperature Shutdown
Current Limiting
Noise Reduction Bypass Cap
Power-Saving Shutdown Mode
Available in Lead Free, RoHS Compliant
Packaging: 6Pin TSOT-26 & 8Pin DFN
6
SP6265Bek1
2. GND
TSOT-26
. BYP
Top View
. EN
5. V
IN
6. V
OUT
* Die Attach:
SP6265
2
Applications
•
•
•
•
Cellular Phones
Palm / Notebook
Conductive epoxy
Battery Powered Equipment
Handheld Devices
general Description
The
SP6265 dual, low dropout, linear regulators operate
up
to 5.5V input and deliver up to 50mA / 50mA output
current
per regulator.
It has a bypass pin option
which
allows users to decouple the bandgap reference for reducing
the output noise. Low dropout voltage and low quiescent current(70µA typ.) make them ideal for battery
powered
applications. The SP6265 is available with a wide variety of
standard
voltage options and can be trimmed to .5%
accuracy. For protection purposes, SP6265 has
a
thermal shutdown
feature
to prevent device failure under the
“worst”
operating conditions.
Typical Applications
DFn-8
(3mmx3mmx0.6mm)
Top View
V
OUT1
SP6265
without Bypass
V
in
en1
en2
V
in
V
OUT1
SP6265
with Bypass
V
OUT1
V
OUT2
V
OUT2
S
S
SP6265
gnD
V
in
V
in
en
SP6265
gnD
8
V
OUT2
7
V
OUT1
6
5
BYP
V
OUT2
2
1µF
1µF
1µF
1µF
1µF
10nF
1µF
SP6265
Mar2-07 Rev O
SP6265 Dual Low-Dropout CMOS Voltage Regulator
5
6
2
7
© 2007 Sipex Corporation
8
Absolute Maximum Ratings
Parameter
Input Voltage
Output Current
Output Voltage
ESD Classification
Maximum
6
P
D
/ [2V
IN
-(V
OUT
+V
OUT2
)]
GND-0. to V
IN
+0.
C*
Unit
V
mA
V
Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device.
* HBM C: 000V+
Recommended Operating Conditions
Parameter
Ambient Temperature Range
Junction Temperature Range
Symbol
T
A
T
J
Rating
-0 to +85
-0 to +25
Unit
o
o
C
C
Thermal information
Parameter
Thermal Resistance*
(Junction to Case)
Package
TSOT-26
DFN-8
(mmxmmx0.6mm)
TSOT-26
DFN-8
(mmxmmx0.6mm)
TSOT-26
Die Attach Symbol Maximum
8
θ
JC
7
260
θ
JA
25
00
P
D
Unit
o
C/W
Thermal Resistance
(Junction to Ambient)
Conductive
Epoxy
Internal Power Dissipation
DFN-8
(mmxmmx0.6mm)
mW
800
50
50
o
o
Maximum Junction Temperature
Solder Iron (0 Sec)**
C
C
* Measure
θ
JC
on center of molding compound if IC has no tab.
** MIL-STD-202G 20F
Mar2-07 Rev O
SP6265 Dual Low-Dropout CMOS Voltage Regulator
© 2007 Sipex Corporation
2
electrical Specifications
Unless specified: T
J
=25
O
C, V
IN
=Higher V
OUT
+V, I
OUT
=I
OUT2
=mA, C
IN
=C
OUT
=.0µF, V
EN
=V
EN2
=V
IN
Typical values are at T
J
=25
O
C
Parameter
in
Input Supply Voltage
Quiescent Current
OUT1, OUT2
I
OUT
=mA
Output Voltage
V
O
0mA<I
OUT
<=50mA
V
OUT
+V<V
IN
<5.5V
Line Regulation
Load Regulation
REG
LINE
REG
LOAD
V
OUT
+V<V
IN
<5.5V,
I
OUT
=mA
mA<I
OUT
I
OUT
=I
OUT2
=50mA
V
O
=V
O(NOM)
-2%,
Dropout Voltage
V
DROP
V
O(NOM)
<2.5V
T
J
= 0
o
C to +25
o
C
I
OUT
=I
OUT2
=50mA
V
O
=V
O(NOM)
-2%,
V
O(NOM)
>=2.5V
Current Limit
Short Circuit Current
Ripple Rejection
I
LIM
I
SC
PSRR
Each Channel
f=00H
Z
, C
BYP
=0nF, I
OUT
=mA
f=kH
Z
, C
BYP
=0nF, I
OUT
=mA
f=0kH
Z
, C
BYP
=0nF, I
OUT
=mA
f=kHz to 00kHz
C
BYP
=0nF, C
OUT
=µF
f=kHz to 00kHz
C
BYP
=0nF, C
OUT
=µF
V
IN
=2.V to 5.5V
V
IN
=2.V to 5.5V
V
IN
=5.0V
2.
0.
-
0.5
0.
.25
50
20
ms
o
o
Symbol
V
IN
I
Q
Test Condition
Min
Note
Typ
Max
5.5
Units
V
µA
70
-.5
-2
-0.2
V
OUT
60
.5
2
0.2
0.25
T
J
= 0
o
C to +25
o
C
T
J
=25
o
C
%
T
J
=-0
o
C to +25
o
C -0.25
%/V
T
J
= 0
o
C to +25
o
C -0.005 +0.0025 0.005 %/mA
50
mV
00
80
200
55
55
8
550
5.5
600
50
mV
mA
dB
µV
RMS
µV/
√
H
Z
Output Voltage Noise
e
n
en1, en2
Enable Input Threshold
EN Input Bias Current
Shutdown Current
BYP
Start-Up Rise Time
Over Temperature Protection
Over Temperature Shutdown
Over Temperature Hysteresis
OTS
OTH
C
C
C
BYP
=0nF
V
EH
V
EL
I
EL
I
EH
I
SHDN
T
J
=-0
o
C to +25
o
C
EN=0V
EN=5V
V
V
µA
V
IN
=5.0V, EN=EN2=0V
Note: V
IN(min)
= V
OUT2
+ V
Dropout
Mar2-07 Rev O
SP6265 Dual Low-Dropout CMOS Voltage Regulator
© 2007 Sipex Corporation
SP6265A,
B -- TSOT-26 package with Bypass
Pin Description
Description
Pin number
Pin name
V
OUT2
Regulator 2 Output. Sources up to 50mA continuous current.
Bypass with a µF (< 0.5Ω typ ESR) capacitor to GND.
Ground. This pin also functions as heatsink.
Solder to a large pad or the circuit-board ground plane to maximize
thermal dissipation.
Reference Noise Bypass. Bypass with a low leakage 0nF ceramic
capacitor for reduced noise at both outputs.
Shutdown control input, active low.
Tie this pin to or above 2.V to enable the device.
Tie this pin to or below 0.V to turn off the device.
Regulator Input.
Supply voltage can range from
[V
OUT2
+ V] to
5.5V. This input also
supplies the on-chip reference. Bypass with µF to GND.
Regulator Output. Sources up to 50mA continuous current.
Bypass with a µF (< 0.5Ω typ ESR) capacitor to GND.
2
GND
BYP
EN
5
V
IN
V
OUT
6
SP6265F,
g, H, J, k -- TSOT-26 package without Bypass
Pin number
Pin name
V
OUT2
Description
Regulator 2 Output. Sources up to 50mA continuous current.
Bypass with a µF (< 0.5Ω typ ESR) capacitor to GND.
Ground. This pin also functions as heatsink.
Solder to a large pad or the circuit-board ground plane to maximize
thermal dissipation.
Shutdown control input, active low.
Tie this pin to or above 2.V to enable the device.
Tie this pin to or below 0.V to turn off the device.
Shutdown 2 control input, active low.
Tie this pin to or above 2.V to enable the device.
Tie this pin to or below 0.V to turn off the device.
Regulator Input.
Supply voltage can range from
[V
OUT2
+V] to 5.5V. This input also
supplies the on-chip reference. Bypass with µF to GND.
Regulator Output. Sources up to 50mA continuous current.
Bypass with a µF (< 0.5Ω typ ESR) capacitor to GND.
2
GND
EN
EN2
5
V
IN
V
OUT
6
Mar2-07 Rev O
SP6265 Dual Low-Dropout CMOS Voltage Regulator
© 2007 Sipex Corporation
Pin Description
SP6265L,
M -- DFn package without Bypass
Pin number
Pin name
V
IN
Description
Regulator Input.
Supply voltage can range from
[V
OUT2
+V
DROPOUT
] to
5.5V. This
input also supplies the on-chip reference. Bypass with µF to GND.
Shutdown control input, active low.
Tie this pin to or above 2.V to enable the device.
Tie this pin to or below 0.V to turn off the device.
Shutdown 2 control input, active low.
Tie this pin to or above 2.V to enable the device.
Tie this pin to or below 0.V to turn off the device.
Not Connected
Ground. This pin also functions as heatsink.
Solder to a large pad or the circuit-board ground plane to maximize
thermal dissipation.
Not Connected
Regulator 2 Output. Sources up to 50mA continuous current. Bypass
with a µF (< 0.5Ohm typical ESR) capacitor to GND.
Regulator Output. Sources up to 50mA continuous current. Bypass
with a µF (< 0.5Ohm typical ESR) capacitor to GND.
2
EN
5
6
7
8
EN2
NC
GND
NC
V
OUT2
V
OUT
Functional Block Diagram
en1
On/OFF
Control
error
Amp1
Current
Limit
VR1
each
Circuit
V
OUT1
R11
R12
V
i n
gnD
error
Amp2
Current
Limit
VR2
each
Circuit
Voltage
Reference
V
OUT2
R21
en2
On/OFF
Control
R22
Mar2-07 Rev O
SP6265 Dual Low-Dropout CMOS Voltage Regulator
© 2007 Sipex Corporation
5
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