LTC3525DESC6-3.3#TRPBF [Linear]
LTC3525D-3.3 - 400mA Micropower Synchronous Step-Up DC/DC Converter with Pass Through Mode; Package: SC70; Pins: 6; Temperature Range: -40°C to 85°C;
| 型号： | LTC3525DESC6-3.3#TRPBF |
| 厂家： | 
Linear |
| 描述： | LTC3525D-3.3 - 400mA Micropower Synchronous Step-Up DC/DC Converter with Pass Through Mode; Package: SC70; Pins: 6; Temperature Range: -40°C to 85°C 转换器 |
| 文件： | 总12页 (文件大小：217K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LTC3525D-3.3
400mA Micropower
Synchronous Step-Up DC/DC
Converter with Pass Through Mode
U
DESCRIPTIO
FEATURES
TheLTC®3525D-3.3isahighefficiencysynchronousstep-
up DC/DC converter that can start up with an input as low
as 0.85V. It offers a compact, high efficiency alternative to
charge pumps in single cell or dual cell alkaline or Li-ion
applications. Only three small external components are
required. The LTC3525D features a fixed output voltage
■
V
Connected to V in Shutdown
OUT
IN
■
■
■
■
Up to 95% Efficiency
0.85V Minimum Input Start-Up Voltage
Fixed Output Voltage of 3.3V
Delivers 60mA at 3.3V from a 1V Input,
or 140mA at 3.3V from a 1.8V Input
Burst Mode® Operation: I = 7µA
of 3.3V. In shutdown, V
is connected to V through
■
■
■
■
■
■
■
■
Q
OUT IN
V Range: 0.5V to 4.5V
the inductor.
IN
Only Three External Components
The device includes a 0.5Ω N-channel MOSFET switch
and a 0.8Ω P-channel synchronous rectifier. Peak switch
current ranges from 150mA to 400mA, depending on
load, providing enhanced efficiency. Quiescent current
is an ultralow 7µA, maximizing battery life in portable
applications.
V > V
Operation
IN
OUT
Antiringing Control
Short-Circuit and Overtemperature Protection
Very Low Profile of 1mm
Tiny 6-Pin SC70UPackage
APPLICATIO S
Other features include anti-ringing control and thermal
shutdown. The LTC3525D is available in a tiny 6-pin SC70
package.
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
Burst Mode is a registered trademark of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
Patents Pending.
■
MP3 Players
■
Portable Instruments
■
Glucose Meters
■
Digital Cameras
U
TYPICAL APPLICATIO
LTC3525D-3.3 Efficiency and
Power Loss vs Load Current
L1*
10µH
100
90
80
70
60
50
40
30
20
100
10
LTC3525D-3.3
EFFICIENCY
V
V
SW
OUT
IN
1.8V to 3.2V
IN
V
OUT
3.3V
SHDN
GND
V
PASS THROUGH ON
1
140mA
POWER LOSS
GND
1µF
10µF
0.1
V
V
V
= 3V
= 2.4V
= 1.2V
IN
IN
IN
3525 TA01
0.01
1000
0.01
0.1
1
10
100
*MURATA LQH32CN100K53
LOAD (mA)
LT3525 • TA02
3525d33f
1
LTC3525D-3.3
W W U W
U
W
U
ABSOLUTE AXI U RATI GS
PACKAGE/ORDER I FOR ATIO
(Note 1)
TOP VIEW
V , V
IN OUT
Voltage........................................ –0.3V to 6V
SHDN 1
GND 2
6 SW
SW Voltage ................................................. –0.3V to 6V
SW Voltage < 100ns ................................... –0.3V to 7V
SHDN Voltage ............................................. –0.3V to 6V
Operating Temperature Range
5 GND
V
IN
3
4 V
OUT
SC6 PACKAGE
6-LEAD PLASTIC SC70
= 125°C
(Notes 2, 5).......................................... –40°C to 85°C
Storage Temperature Range................... –65°C to 125°C
Lead Temperature (Soldering, 10 sec) .................. 300°C
T
JMAX
θ
= 256°C/W IN FREE AIR, θ = 150°C/W ON BOARD
JA
JA
OVER GROUND PLANE
ORDER PART NUMBER
SC6 PART MARKING
LCQZ
LTC3525DESC6-3.3
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS
The
●
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at T = 25°C.
A
V
= 1.2V, V
= 1.2V, V
OUT
= 3.3V unless otherwise noted.
IN
SHDN
PARAMETER
CONDITIONS
MIN
TYP
0.85
3.30
7
MAX
1
UNITS
V
Input Start-Up Voltage
Output Voltage
●
(Note 6)
3.20
3.40
15
V
Quiescent Current, V
Quiescent Current, V
SHDN = V (Note 4)
µA
µA
µA
OUT
IN
IN
SHDN = V (Note 4)
0.5
3
3
IN
Quiescent Current, V - Shutdown
SHDN = 0V, V
Including Switch Leakage
= V = 3.3V
10
IN
OUT
IN
Ω
Ω
A
NMOS Switch On Resistance
PMOS Switch On Resistance
Peak Current Limit
(Note 3)
0.5
0.8
(Note 3)
0.4
0.4
0.45
0.6
SHDN Threshold
1
1
V
SHDN Input Current
V
SHDN
= V or V
OUT
0.01
µA
IN
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LTC3525DE is guaranteed to meet performance specifications
from 0°C to 85°C. Specifications over the –40°C to 85°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls.
Note 4: Current Measurements are performed when the LTC3525D is not
switching.
Note 5: This IC includes overtemperature protection that is intended
to protect the device during momentary overload conditions. Junction
temperature will exceed 125°C when overtemperature protection is active.
Continuous operation above the specified maximum operating junction
temperature may impair device reliability.
Note 6: Consult LTC Marketing for other output voltage options.
Note 3: Specification is guaranteed by design and not 100% tested in
production.
3525d33f
2
LTC3525D-3.3
U W
TYPICAL PERFOR A CE CHARACTERISTICS T = 25°C unless otherwise noted.
A
Maximum Output Current vs V
Maximum Startup Load vs V
(Resistive Load)
IN
IN
(for V
to Drop 2.5%)
No-Load Input Current vs V
IN
OUT
50
45
40
35
30
25
20
15
10
5
300
250
200
150
100
50
250
200
150
100
50
0
0
0
1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
(V)
0.5
1.5
V
2.0
(V)
2.5
3.0
1.0
V
IN
(V)
V
IN
IN
3525 G03
3525 G01
3525 G02
Efficiency and Power Loss vs
Load
Load Regulation
Load Regulation
100
90
80
70
60
50
40
30
20
100
2.5
2.0
2.5
2.0
V
= 1.2V
V
= 2.4V
IN
IN
1.5
1.5
10
EFFICIENCY
1.0
1.0
0.5
0.5
C
= 22µF
OUT
C
= 22µF
OUT
1
0
0
POWER LOSS
C
OUT
= 10µF
–0.5
–1.0
–1.5
–2.0
–2.5
–0.5
–1.0
–1.5
–2.0
–2.5
C
= 10µF
OUT
0.1
0.01
V
V
V
= 3V
= 2.4V
= 1.2V
IN
IN
IN
0.01
0.1
1
10
100
1000
0
10 20 30 40 50 60 70 80
0
20 40 60 80 100 120 140 160 180
LOAD (mA)
LOAD (mA)
LOAD (mA)
3525 G04
3525 G06
3525 G07
V
Variation vs Temperature
Start-Up Delay Coming Out of
Shutdown
Light Load Burst Frequency
vs Load
OUT
(Normalized to 25°C)
120
100
80
60
40
20
0
40
0.4
0.3
35
30
25
20
15
10
5
0.2
0.1
0
C
= 10µF
OUT
–0.1
–0.2
–0.3
–0.4
C
= 22µF
OUT
0
1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
0.1
1
10
–40–30–20–10 0 10 20 30 40 50 60 70 80
V
(V)
LOAD (mA)
TEMPERATURE (°C)
IN
3525 G12
3525 G13
3525 G14
3525d33f
3
LTC3525D-3.3
U W
TYPICAL PERFOR A CE CHARACTERISTICS T = 25°C unless otherwise noted.
A
Output Voltage Ripple
Output Voltage Ripple
I
I
=
I
I
=
OUT
OUT
5mA
5mA
=
OUT
=
OUT
40mA
50mV/DIV
50mV/DIV
40mA
I
=
OUT
I
=
OUT
80mA
80mA
3525 G16
3525 G17
50µs/DIV
50µs/DIV
V
C
= 1.2V
V
C
= 1.2V
IN
OUT
IN
OUT
= 10µF
= 22µF
50mA Load Step Response
Output Voltage Ripple
I
I
=
OUT
5mA
OUTPUT
RIPPLE
50mV/DIV
=
OUT
50mV/DIV
100mA
LOAD
CURRENT
20mA/DIV
I
=
OUT
190mA
3525 G18
3525 G21
50µs/DIV
500µs/DIV
V
C
= 2.4V
V
C
= 1.2V
IN
OUT
IN
OUT
= 22µF
= 22µF
100mA Load Step Response
OUTPUT
RIPPLE
50mV/DIV
LOAD
CURRENT
50mA/DIV
3525 G22
500µs/DIV
V
C
= 2.4V
IN
OUT
= 22µF
3525d33f
4
LTC3525D-3.3
U
U
U
PI FU CTIO S
SHDN (Pin 1): Logic Controlled Shutdown Input. Connect
V
(Pin 4): Output Voltage Sense and the Output of the
OUT
to a voltage >1V to enable the LTC3525D. Connect to a
Synchronous Rectifier. Connect the output filter capacitor
voltage <0.4V to disable the LTC3525D and connect V
from V
to GND, close to the IC. A minimum value of
IN
OUT
to V
through the inductor.
10µF ceramic is recommended. Use 22µF for reduced
output ripple. The pass-through mode feature connects
OUT
GND (Pins 2, 5): Ground.
V (Pin3):InputVoltage. TheLTC3525Dispoweredfrom
V
OUT
to V through the inductor when SHDN is <0.4V.
IN
IN
SW (Pin 6): Switch Pin. Connect an inductor from this
V until V
exceeds V . Once V
is greater than (V
OUT
IN
OUT
IN
OUT IN
pin to V . An internal antiringing resistor is connected
IN
+ 0.2V typical), it is powered from V . Place a ceramic
across SW and V after the inductor current has dropped
IN
bypass capacitor from V to GND. A minimum value of
IN
to zero to minimize EMI.
1µF is recommended.
W
BLOCK DIAGRA
SW
6
V
IN
3
V
OUT
V
SEL
WELL
SWITCH
V
BEST
VB
4
V
OUT
GATE DRIVERS
AND
ANTI-CROSS
CONDUCTION
SHUTDOWN
SHDN
1
SHUTDOWN
+
OFFSET –
ADJUST
V
REF
V
REF
–
+
I
UVLO
PK
UVLO
+
I
OFFSET –
PK
COMPARATOR
ADJUST
STARTUP
LOGIC
–
+
I
VAL
SHUTDOWN
I
VALLEY
COMPARATOR
FB
–
+
TSD
WAKE
THERMAL
SHUTDOWN
V
REF
INTEGRATOR
SLEEP
COMPARATOR
ADJUST
5
2
3525 BD
GND
GND
3525d33f
5
LTC3525D-3.3
U
OPERATIO
TheLTC3525DisahighperformanceBurstModeoperation
only, synchronous boost converter requiring only three
small external components. Its simplicity and small size
makeitahighefficiencyalternativetochargepumpdesigns.
It is designed to start-up from a single alkaline or nickel
cell, with input voltages as low as 0.85V, or from two or
three cells (or a Li-ion battery), with voltages as high as
After the SHDN pin rises, there is a short delay before
switching starts. The delay is 20µs to 120µs, depending
on input voltage (see Typical Performance Characteristics
curve).
Pass-Through Mode
WhentheLTC3525Disinshutdown,theinternalP channel
4.5V. Once started, V can be as low as 0.5V (depend-
IN
MOSFET switch is turned on. This allows V to be con-
IN
ing on load current) and maintain regulation. The output
voltage is preset internally to 3.3V. Peak switch current is
400mA minimum, providing regulation with load currents
up to 150mA, depending on input voltage.
nectedtoV
throughtheinductorinshutdown, creating
OUT
a pass-through mode.
Start-up
Synchronous rectification provides high efficiency opera-
tion while eliminating the need for an external Schottky
diode.
Astart-uposcillatorallowstheLTC3525Dtostartwithinput
voltages as low as 1V. It remains in start-up mode until
two conditions are met. V
must exceed V by at least
OUT
IN
0.2V typical and either V or V
must be greater than
IN
OUT
The LTC3525D can maintain regulation with an input
1.8V typical.
voltage equal to or greater than V . Note, however, that
OUT
the synchronous rectifier is not enabled in this mode,
resulting in lower efficiency and reduced output current
capability.
During startup, the synchronous rectifier is not enabled,
and the internal P-channel synchronous rectifier acts as
a follower, causing the peak voltage on SW to reach (V
IN
+ 1V) typical. This limits inrush current by maintaining
The operating quiescent current is only 7µA typical, allow-
ing the converter to maintain high efficiency at extremely
light loads.
control of the inductor current when V is less than V .
OUT
IN
ToreducepowerdissipationintheP-channelsynchronous
rectifier when the output is shorted, a foldback feature is
incorporated that reduces the peak inductor current when
Shutdown
V is more than 1.7V greater than V
.
IN
OUT
The LTC3525D is shut down by pulling SHDN below 0.4V,
andmadeactivebyraisingitabove1V.NotethatSHDNcan
be driven as high as 6V, however, if it is more than 0.9V
above the higher of V or V , the SHDN input current
IN
OUT
will increase from zero to 1.5µA.
3525d33f
6
LTC3525D-3.3
U
OPERATIO
INDUCTOR
CURRENT
100mA/DIV
LOAD
CURRENT
50mA/DIV
3525 F01
10µs/DIV
Figure 1. Inductor Current Changing as a Function of Load
Normal Operation
Once V
Power Adjust Feature
has increased more than 0.2V typical above
The LTC3525D incorporates a feature that maximizes
efficiency at light load while providing increased power
capability at heavy load by adjusting the peak and valley
of the inductor current as a function of load. Lowering the
peak inductor current to 150mA at light load optimizes
efficiency by reducing conduction losses in the internal
MOSFETswitches.Astheloadincreases,thepeakinductor
currentisautomaticallyincreasedtoamaximumof400mA.
At intermediate loads, the peak inductor current may vary
from 150mA to 400mA. Figure 1 shows an example of
how the inductor current changes as the load increases.
Please note that output capacitor values greater than 47µF
will result in higher peak currents than necessary at light
load. This will lower the light load efficiency.
OUT
V , and either voltage is above 1.8V, normal operation
IN
begins, with synchronous rectification enabled. In this
mode, the internal N-channel MOSFET connected be-
tween SW and GND stays on until the inductor current
reaches a maximum peak value, after which it is turned
off and the P-channel synchronous rectifier is turned
on. It stays on, delivering current to the output, until the
inductor current has dropped below a minimum value at
which point it turns off and the cycle repeats. When the
output voltage reaches its regulated value both switches
are turned off and the LTC3525D goes to sleep, during
which time the output capacitor supplies current to the
load. Once the output voltage drops approximately 9mV
below the regulation value the IC leaves sleep mode and
switching is resumed.
Thevalleyoftheinductorcurrentisautomaticallyadjusted
as well, to maintain a relatively constant inductor ripple
current. This keeps the switching frequency relatively
constant.
The LTC3525D has been designed for low output voltage
ripple. The output voltage ripple is typically only 20mV
peak-to-peak at light load and 60mV peak-to-peak at
full load using the minimum recommended 10µF output
capacitor. An anti-ring circuit damps any oscillation at the
switch node when the inductor current falls to zero.
3525d33f
7
LTC3525D-3.3
U
OPERATIO
The maximum average load current that can be supported
InductorswithlowerDCresistancewillimproveefficiency.
Note that the inductor value does not have a significant
effect on ripple current, so while lower values will increase
the operating frequency, they do not reduce output volt-
age ripple.
is given by:
0.3•V •η
IN
IO(MAX
=
Amps
)
VO
Some recommended inductor examples are Murata
LQH32C, Coilcraft LPO4812, LPO3310, DO3314, DS1608
and MSS4020, Sumida CDRH2D14 and Taiyo Yuden
NR3015T.
Where η is the efficiency (see Typical Performance
Characteristics).
The “burst” frequency (how often the LTC3525D delivers
a burst of current pulses to the load) is determined by
the internal hysteresis (output voltage ripple), the load
current and the amount of output capacitance. All Burst
Mode operation or hysteretic converters will enter the
audible frequency range when the load is light enough.
However,duetothelowpeakinductorcurrentatlightload,
circuits using the LTC3525D do not typically generate any
audible noise.
A ceramic input bypass capacitor should be located as
close as possible to the V and GND pins of the IC. A
IN
minimum value of 1µF is recommended. If the battery is
more than a few inches away, a bulk tantalum decoupling
cap of at least 10µF is recommended on V .
IN
Theoutputcapacitorshouldalsobeaceramic,locatedclose
to the V
and GND pins. A minimum value of 10µF is
OUT
recommended.Increasingthevalueoftheoutputcapacitor
to 22µF will result in lower output ripple. Higher capacitor
values will only offer a small reduction in output ripple,
while reducing light load efficiency by causing the peak
inductor current to increase above its minimum value of
150mA. The input and output capacitors should be X5R
or X7R types, not Y5V.
Component Selection
Inductor values between 4.7µH and 15µH are recom-
mended. In most applications 10µH will yield the best
compromise between size and efficiency. The inductor
should be a low-loss ferrite design and must be rated
for peak currents of at least 400mA without saturating.
3525d33f
8
LTC3525D-3.3
U
OPERATIO
Table 1. Inductor Vendor Information
SUPPLIER
Murata
PHONE
FAX
WEBSITE
USA: (814) 237-1431
(847) 639-6400
USA: (847) 956-0666
(408) 573-4150
USA: (814) 238-0490
(847) 639-1469
USA: (847) 956-0702
(408) 573-4159
www.murata.com
www.coilcraft.com
www.sumida.com
www.t-yuden.com
Coilcraft
Sumida
Taiyo Yuden
Table 2. Capacitor Vendor Information
SUPPLIER
Murata
Taiyo Yuden
TDK
PHONE
FAX
WEBSITE
USA: (814) 237-1431
(408) 573-4150
(847) 803-6100
(803) 448-9411
USA: (814) 238-0490
(408) 573-4159
(847) 803-6296
(803) 448-1943
www.murata.com
www.t-yuden.com
www.component.tdk.com
www.avxcorp.com
AVX
SHDN
SW
SHDN
LTC3525D-3.3
GND
GND
V
IN
V
OUT
V
V
OUT
IN
3525 F02
Figure 2. Recommended Component Placement
3525d33f
9
LTC3525D-3.3
U
TYPICAL APPLICATIO
Single Alkaline or NiMH to 3.3V Converter with 1mm Profile
6.8µH*
LTC3525D-3.3
1V to 1.6V
3
1
2
6
4
5
V
SW
OUT
IN
V
OUT
3.3V
SHDN
GND
V
60mA
PASS THROUGH ON
GND
10µF**
6.3V
1µF
3525 TA04
*COILCRAFT LPO3310-682MXD
**MURATA GRM219R60J106KE191D
2-Alkaline or NiMH to 3.3V
10µH*
LTC3525D-3.3
3
1.8V to 3.2V
6
4
5
V
SW
OUT
IN
V
OUT
1
2
3.3V
SHDN
GND
V
140mA
PASS THROUGH ON
1µF
GND
10µF
3525 TA05
*MURATA LQH32CN1002K53
3525d33f
10
LTC3525D-3.3
U
PACKAGE DESCRIPTIO
SC6 Package
6-Lead Plastic SC70
(Reference LTC DWG # 05-08-1638 Rev B)
0.47
MAX
0.65
REF
1.80 – 2.20
(NOTE 4)
1.00 REF
INDEX AREA
(NOTE 6)
1.15 – 1.35
(NOTE 4)
1.80 – 2.40
2.8 BSC 1.8 REF
PIN 1
RECOMMENDED SOLDER PAD LAYOUT
PER IPC CALCULATOR
0.15 – 0.30
6 PLCS (NOTE 3)
0.65 BSC
0.10 – 0.40
0.80 – 1.00
0.00 – 0.10
REF
1.00 MAX
GAUGE PLANE
0.15 BSC
0.26 – 0.46
SC6 SC70 1205 REV B
0.10 – 0.18
(NOTE 3)
NOTE:
1. DIMENSIONS ARE IN MILLIMETERS
2. DRAWING NOT TO SCALE
3. DIMENSIONS ARE INCLUSIVE OF PLATING
4. DIMENSIONS ARE EXCLUSIVE OF MOLD FLASH AND METAL BURR
5. MOLD FLASH SHALL NOT EXCEED 0.254mm
6. DETAILS OF THE PIN 1 IDENTIFIER ARE OPTIONAL,
BUT MUST BE LOCATED WITHIN THE INDEX AREA
7. EIAJ PACKAGE REFERENCE IS EIAJ SC-70
8. JEDEC PACKAGE REFERENCE IS MO-203 VARIATION AB
3525d33f
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa-
tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
11
LTC3525D-3.3
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SD
LTC3421
3A (I ), 3MHz, Synchronous Step-Up DC/DC Converter
95% Efficiency, V : 0.5V to 4.5V, V
= 5.25V,
OUT(MAX)
SW
IN
with Output Disconnect
I = 12µA, I <1µA, QFN-24 Package
Q SD
LTC3429/LTC3429B
LTC3458
600mA, 500kHz Single/Dual Cell Micropower Synchronous
Boost Converter with Output Disconnect
95% Efficiency, V : 1V to 4.5V, V
= 5V,
IN
OUT(MAX)
I = 20µA, I <1µA, SC70 Package
Q
SD
1.4A (I ), 1.5MHz, Synchronous Step-Up DC/DC Converter
V : 1.5V to 6V, V
= 7.5V, I <1µA,
SW
IN
OUT(MAX) SD
with Output Disconnect
3mm × 4mm DFN Package
LTC3458L
1.7A (I ), 1.5MHz, Synchronous Step-Up DC/DC Converter
V : 1.5V to 6V, V = 6V, I <1µA,
SW
IN
OUT(MAX)
SD
with Output Disconnect
3mm × 4mm DFN Package
LTC3459
60mA, 10V Micro Power Synchronous Boost Converter
95% Efficiency, V : 1.5V to 6V, V
= 10V,
OUT(MAX)
IN
I =10µA, I <1µA, ThinSOT Package
Q
SD
LT3464
85mA (I ), High Efficiency Step-Up DC/DC Converter
V : 2.3V to 10V, V
SD
= 34V, I = 25µA,
OUT(MAX) Q
SW
IN
with Integrated Schottky and PNP Disconnect
I
<1µA, ThinSOT Package
LT3427
500mA (I ), 1.2MHz, Step-Up DC/DC Converter with Output
V : 1.8V to 5V, V
= 5V, I <1µA,
SW
IN
OUT(MAX) SD
Disconnect
2mm × 2mm DFN Package
LTC3525-3/LTC3525-3.3/ 400mA Synchronous Step-Up DC/DC Converter with Output
V : 0.5V to 4.5V, V
= 5V, I = 7µA, I <1µA,
Q SD
IN
OUT(MAX)
LTC3525-5
Disconnect
SC70 Package
LTC3526/LTC3526B
500mA. 1MHz, Synchronous Step-Up DC/DC Converter
with Output Disconnect
V : 0.5V to 4.5V, V
= 5.25V, I = 9µA, I <1µA,
Q SD
IN
OUT(MAX)
2mm × 2mm DFN-6 Package
ThinSOT is a trademark of Linear Technology Corporation.
3525d33f
LT/LWI 1006 • PRINTED IN USA
LinearTechnology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
12
●
●
© LINEAR TECHNOLOGY CORPORATION 2006
(408) 432-1900 FAX: (408) 434-0507 www.linear.com
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