SP6201ER-G-ADJ/TR [EXAR]
Adjustable Positive LDO Regulator, 2.7V Min, 6V Max, 0.5V Dropout, CMOS, PDSO8, 3 X 2 MM, GREEN, MO-229VCED-2, DFN-8;
| 型号： | SP6201ER-G-ADJ/TR |
| 厂家： | 
EXAR CORPORATION |
| 描述： | Adjustable Positive LDO Regulator, 2.7V Min, 6V Max, 0.5V Dropout, CMOS, PDSO8, 3 X 2 MM, GREEN, MO-229VCED-2, DFN-8 稳压器 |
| 文件： | 总17页 (文件大小：967K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SP6200 / SP6201
100mA/200mA Micropower CMOS LDO Regulators
May 2012
Rev. 2.1.0
GENERAL DESCRIPTION
APPLICATIONS
The SP6200 and SP6201 are CMOS Low
Dropout (LDO) regulators designed to meet a
broad range of applications that require
accuracy, speed and ease of use.
Battery-Powered Systems
Medical Equipments
MP3/CD Players
These LDOs offer extremely low quiescent
current which only increases slightly under
load, thus providing advantages in ground
current performance over bipolar LDOs. The
LDOs handle an extremely wide load range
and guarantee stability with a 1μF ceramic
output capacitor. They have excellent low
frequency Power Supply Rejection Ratio
(PSRR), not found in other CMOS LDOs and
thus offer exceptional Line Regulation. High
frequency PSRR is better than 40dB up to
400kHz. Load Regulation is excellent and
temperature stability is comparable to bipolar
LDOs. An enable feature is provided on all
versions.
Digital Cameras
FEATURES
100mA/200mA Output Current
SP6200: 100mA – SP6201: 200mA
Low Dropout Voltage: 160mV @ 100mA
2.5V to 6.0V Input Voltage
Fixed and Adjustable Output Voltage
2% Output Voltage Accuracy
Ultra Low Ground Current:
200μA @ 200mA & 28μA @ 100μA Load
Tight Load and Line Regulation
78dB PSRR @ 1KHz
Both LDOs are available in fixed & adjustable
output voltage versions and come in an
industry standard 5-pin SOT-23 and small
2X3mm 8-pin DFN packages. A VOUT good
indicator is provided on all fixed output
versions.
RESET/Power Good Output
Logic-Controlled Electronic Enable
Unconditionally Stable with 1μF
Ceramic Capacitor
Current Limit and Thermal Protection
RoHS Compliant “Green”/Halogen Free
5-Pin SOT23 and 8-Pin DFN Packages
TYPICAL APPLICATION DIAGRAM
Fig. 1: SP6200 / SP6201 Application Diagram
Exar Corporation
48720 Kato Road, Fremont CA 94538, USA
www.exar.com
Tel. +1 510 668-7000 – Fax. +1 510 668-7001
SP6200 / SP6201
100mA/200mA Micropower CMOS LDO Regulators
ABSOLUTE MAXIMUM RATINGS
OPERATING RATINGS
These are stress ratings only and functional operation of
the device at these ratings or any other above those
indicated in the operation sections of the specifications
below is not implied. Exposure to absolute maximum
rating conditions for extended periods of time may affect
reliability.
Input Voltage Range VIN.............................+2.5V to +6V
Enable Input Voltage (VEN) ................................ 0V to 6V
Junction Temperature Range ....................-40°C to 125°C
Thermal Resistance......................................................
SOT-23-5 (θJA) .............................................191°C/W
DFN-8 (θJA) ................................................... 59°C/W
Supply Input Voltage (VIN)............................... -2V to 7V
Output Voltage (VOUT)............................-0.6 to (VIN +1V)
Enable Input Voltage (VEN)............................... -2V to 7V
Storage Temperature............................-65°C to +150°C
Power Dissipation ...............................Internally Limited1
Lead Temperature (Soldering, 5 sec) .....................260°C
Note 1: Maximum power dissipation can be calculated
using the formula: PD = (TJ(max) - TA) / θJA, where
TJ(max) is the junction temperature, TA is the ambient
temperature and θJA is the junction-to-ambient thermal
resistance. θJC is 6°C/W for this package. Exceeding the
maximum allowable power dissipation will result in
excessive die temperature and the regulator will go into
thermal shutdown mode.
ELECTRICAL SPECIFICATIONS
Specifications with standard type are for an Operating Junction Temperature of TJ = 25°C only; limits applying over the full
Operating Junction Temperature range are denoted by a “•”. Minimum and Maximum limits are guaranteed through test,
design, or statistical correlation. Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for
reference purposes only. Unless otherwise indicated, VIN = (VOUT + 1V), VOUT = 5V for Adjustable version, CIN = 1.0µF, COUT
=
1.0µF and IL = 100µA, TJ= 25°C.
Parameter
Min.
Typ.
Max.
Units
Conditions
2
3
-2
-3
Output Voltage Accuracy, (VO)
Reference Voltage
%
V
Variation from specified VOUT
Adjustable version only
•
•
1.250
60
1.287
1.213
Output Voltage Temperature
ppm/°C
Coefficient2 (∆ VO/∆T)
2.50
2.55
2.70
3.00
2.70
2.80
2.95
3.50
V
V
V
V
IL = 100µA
IL = 50mA
IL = 100mA
IC = 200mA
Minimum Supply Voltage
•
Line Regulation, (∆VO/VIN)
Load Regulation3 (∆VO/VO)
VIN = (VOUT + 1V) to 6V
0.03
0.2
%/V
•
•
IL = 0.1mA to 100mA, SP6200
IL = 0.1mA to 200mA, SP6201
0.07
0.14
0.25
0.50
%
%
SP6200-1.5V & 1.8 Load Reg.
SP6201-1.5V & 1.8 Load Reg.
0.3
0.3
1
1
%
%
IL = 0.1mA to 100mA, VIN = 2.95V
IL = 0.1mA to 200mA, VIN = 3.5V
0.2
4
7
mV
mV
mV
mV
µA
IL = 100µA
•
•
•
70
120
160
250
300
400
500
Dropout Voltage4 (VIN – VO)
(Not applicable to voltage
options below 2.7V)
IL = 50mA
160
320
IL = 100mA
IL = 200mA, SP6201 Only
VEN ≥ 0.4V
•
•
Shutdown Quiescent Current
0.01
28
1
(IGND
)
40
45
200
250
400
500
VEN ≥ 2.0V, IL = 100 µA
µA
•
•
•
110
200
VEN ≥ 2.0V, IL = 100 mA, SP6200 only
(for 1.5 & 1.8, VIN = 2.95)
Ground Pin Current5 (IGND
)
µA
VEN ≥ 2.0V, IL = 200mA, SP6201 Only
(for 1.5 & 1.8, VIN = 3.5)
µA
Frequency = 100Hz, IL = 10mA
Frequency = 400Hz, IL = 10mA
SP6200
78
40
Power Supply Rejection Ratio,
(PSRR)
dB
•
Current Limit, (ICL)
140
200
mA
100
© 2012 Exar Corporation
2/17
Rev. 2.1.0
SP6200 / SP6201
100mA/200mA Micropower CMOS LDO Regulators
Parameter
Min.
Typ.
Max.
Units
Conditions
•
420
162
147
0.05
600
SP6201
300
Turns On
Turns Off
Thermal Limit
Thermal Regulation6 (ΔVO/ΔPD)
°C
%/W
IL = 50mA, CL = 1µF
0.1µF from VOUT to Adj.
10Hz to 100kHz
Output Noise, (eNO
)
150
µVrms
ENABLE INPUT
Enable Input Logic-Low Voltage,
(VIL)
•
•
0.4
V
V
Regulator Shutdown
Regulator Enabled
Enable Input Logic-High Voltage,
(VIH)
1.6
-2
•
•
Enable Input Current, (IIL), (IIH)
0.01
0.01
-4
1
1
µA
µA
%
VIL < 0.4V
VIH > 2.0V
Threshold
Reset Not Output
-6
Note 2: Output voltage temperature coefficient is defined as the worst case voltage change divided by the totaltemperature
range.
Note 3: Load Regulation is measured at constant junction temperature using low duty cycle pulse testing. Parts are tested
for load regulation in the load range; from 0.1mA to 100mA, SP6200; from 0.1mA to 200mA, SP6201. Changes in output
voltage due to heating effects are covered by the thermal regulation specification. Not applicable to output voltages less
than 2.5V.
Note 4: Dropout Voltage is defined as the input to output differential at which the output voltage drops 2% below its
nominal value measured at 1V differential. Not applicable to output voltages less than 2.7V.
Note 5: Ground pin current is the regulator quiescent current. The total current drawn from the supply is the sum of the
load current plus the ground pin current.
Note 6: Thermal regulation is defined as the change in output voltage at a time ”t” after a change in power dissipation is
applied, excluding load or line regulation effects. Specifications are for a 100mA load pulse at VIN = 6V for t = 10ms.
BLOCK DIAGRAMS
Fig. 2: Fixed Voltage and Adjustable Regulators
© 2012 Exar Corporation
3/17
Rev. 2.1.0
SP6200 / SP6201
100mA/200mA Micropower CMOS LDO Regulators
PIN ASSIGNMENT
Fig. 3: SP6200 / SP6201 Pin Assignment
PIN DESCRIPTION
SOT 23-5
Name
SOT-23-5
Description
1
2
Power Supply Input
IN
Ground Terminal
GND
Enable/Shutdown Input – CMOS or TTL compatible Input
- Logic high = enable
- Logic low = shutdown
3
EN
Reset/Power Good - Fixed voltage option:
Open Drain indicating that VOUT is good.
RST(Reset
not)/ADJ
4
5
Adjustable Input – Adjustable voltage option:
Adjustable regulator feedback input. Connect to a resistive voltage-
Divider network.
Regulator Output Voltage
OUT
8 PIN DFN
Name
DFN-8
Description
1
2
3
4
No Connect
NC
VIN
Power Supply Input
Regulator Output Voltage
No Connect
VOUT
NC
Reset/Power Good - Fixed voltage option:
Open Drain indicating that VOUT is good.
5
RESET/ADJ
Adjustable Input – Adjustable voltage option:
Adjustable regulator feedback input. Connect to a resistive voltage-
Divider network.
6
7
No Connect
No Connect
NC
NC
Enable/Shutdown Input – CMOS or TTL compatible Input
- Logic high = enable
8
EN
Logic low = shutdown
© 2012 Exar Corporation
4/17
Rev. 2.1.0
SP6200 / SP6201
100mA/200mA Micropower CMOS LDO Regulators
ORDERING INFORMATION
Temperature
Packing
Quantity
Part Number
Range
Marking
E30
Package
Voltage Option
3.0V
Note 1
Bulk
SP6200EM5-L-3-0
Halogen Free
SOT-23-5
-40°C≤TJ≤+125°C
2.5K/Tape & Reel
Bulk
SP6200EM5-L-3-0/TR
SP6201EM5-L
Halogen Free
Halogen Free
Halogen Free
Halogen Free
Halogen Free
Halogen Free
Halogen Free
Halogen Free
Halogen Free
FADJ
F15
Adjustable
1.5V
2.5K/Tape & Reel
Bulk
SP6201EM5-L/TR
SP6201EM5-L-1-5
SP6201EM5-L-1-5/TR
SP6201EM5-L-1-8
SP6201EM5-L-1-8/TR
SP6201EM5-L-2-5
SP6201EM5-L-2-5/TR
2.5K/Tape & Reel
Bulk
F18
1.8V
2.5K/Tape & Reel
Bulk
F25
2.5V
2.5K/Tape & Reel
Bulk
SP6201EM5-L-2-85
-40°C≤TJ≤+125°C
SP6201EM5-L-2-85/TR
F285
F30
SOT-23-5
2.85V
3.0V
2.5K/Tape & Reel
Bulk
SP6201EM5-L-3-0
SP6201EM5-L-3-0/TR
SP6201EM5-L-3-3
SP6201EM5-L-3-3/TR
SP6201EM5-G-3-3
SP6201EM5-G-3-3/TR
SP6201EM5-L-5-0
SP6201EM5-L-5-0/TR
SP6201ER-L
2.5K/Tape & Reel
Bulk
F33
3.3V
2.5K/Tape & Reel
Bulk
UBWW
F50
3.3V
2.5K/Tape & Reel
Bulk
5.0V
2.5K/Tape & Reel
Bulk
A0
YWW
XXX
B0
YWW
XXX
C0
Halogen Free
Halogen Free
Halogen Free
Adjustable
1.8V
3K/Tape & Reel
Bulk
SP6201ER-L/TR
SP6201ER-L-1-8
DFN8
-40°C≤TJ≤+125°C
3K/Tape & Reel
Bulk
SP6201ER-L-1-8/TR
SP6201ER-L-3-3
YWW
XXX
3.3V
3K/Tape & Reel
SP6201ER-L-3-3/TR
“Y” = Year – “WW” = Work Week – “XXX” = Lot Number; when applicable.
© 2012 Exar Corporation
5/17
Rev. 2.1.0
SP6200 / SP6201
100mA/200mA Micropower CMOS LDO Regulators
TYPICAL PERFORMANCE CHARACTERISTICS
All data taken at 25°C, VIN = 5.5V, IO = 0.1mA, CIN = COUT = 1μF, unless otherwise specified - Schematic and BOM from
Application Information section of this datasheet.
Fig. 5: Dropout vs. Temp (SP6201 fixed 3.0V)
Fig. 4: Dropout vs. Io (SP6201 fixed 3.0V)
Fig. 6: Dropout vs. Temp (SP6201 fixed 3.0V)
Fig. 7: Iq vs. Vin (fixed 3.0V, IO=0µA)
Fig. 8: Iq vs. Temp (SP6201 fixed 3.0V, EN=Vin, IO=0uA)
Fig. 9: Iq vs. Temp (SP6201 fixed 3.0V, EN=0V, IO=0uA)
© 2012 Exar Corporation
6/17
Rev. 2.1.0
SP6200 / SP6201
100mA/200mA Micropower CMOS LDO Regulators
Fig. 10: IGND vs. VIN (SP6201 fixed 3.0V)
Fig. 11: IGND vs. IO (SP6201 fixed 3.0V)
Fig. 13: VOUT vs. Temp (fixed 3.3V)
Fig. 15: VOUT vs. Temp (adjustable)
Fig. 12: VOUT vs. Temp (fixed 3.0V)
Fig. 14: VOUT vs. Temp (adjustable)
© 2012 Exar Corporation
7/17
Rev. 2.1.0
SP6200 / SP6201
100mA/200mA Micropower CMOS LDO Regulators
Fig. 17: VOUT vs. Temp (adjustable)
Fig. 19: Load Regulation (SP6201 fixed 3.0V)
Fig. 21: Current Limit vs. Temp (fixed 3.3V, VIN=4V)
Fig. 16: VOUT vs. Temp (adjustable)
Fig. 18: Line Regulation (SP6201 fixed 3.0V)
Fig. 20: Current Limit vs. Temp (fixed 3.3V, VIN=4V)
© 2012 Exar Corporation
8/17
Rev. 2.1.0
SP6200 / SP6201
100mA/200mA Micropower CMOS LDO Regulators
Fig. 23: Turn on time, IO=100mA, 4VIN
Fig. 22: Turn on time, IO=1mA, 4VIN
Fig. 24: Turn on time, IO=300mA, 4VIN
Fig. 25: Turn on time, IO=100mA, 7VIN
Fig. 26: Turn off time, IO=1mA, 4VIN
Fig. 27: Turn off time, IO=50mA, 4VIN
© 2012 Exar Corporation
9/17
Rev. 2.1.0
SP6200 / SP6201
100mA/200mA Micropower CMOS LDO Regulators
Fig. 29: Turn off time, IO=100mA, 7VIN
Fig. 28: Turn off time, IO=100mA, 4VIN
Fig. 30: Inrush Current, IO=100mA
Fig. 31: Inrush Current, IO=100µA
Fig. 32: Load Transient Response, 100mA step, 4VIN
Fig. 33: Load Transient Response, 100mA step, 7VIN
© 2012 Exar Corporation
10/17
Rev. 2.1.0
SP6200 / SP6201
100mA/200mA Micropower CMOS LDO Regulators
Fig. 35: Load Transient Response, 300mA step, 4VIN
Fig. 34: Load Transient Response, 200mA step, 4VIN
Fig. 36: Line Transient Response
Fig. 37: Line Transient Response
Fig. 38: Power Supply Rejection Ratio
Fig. 39: Power Supply Rejection Ratio
© 2012 Exar Corporation
11/17
Rev. 2.1.0
SP6200 / SP6201
100mA/200mA Micropower CMOS LDO Regulators
Fig. 40: Power Supply Rejection Ratio
Fig. 41: Power Supply Rejection Ratio
LDOs have a two stage amplifier which
handles an extremely wide load range (10μA
to 300mA) and guarantees stability with a 1μF
ceramic load capacitor. The LDO amplifier has
THEORY OF OPERATION
GENERAL OVERVIEW
The SP6200 and SP6201 are CMOS LDOs
excellent
gain
and
thus
touts
PSRR
designed to meet
a
broad range of
performance not found in other CMOS LDOs.
The amplifier guarantees no overshoot on
power up or while enabled through the EN pin.
The amplifier also contains an active pull
down, so that when the load is removed
quickly the output voltage transient is
minimal; thus output deviation due to load
transient is small and fairly well matched when
connecting and disconnecting the load.
applications that require accuracy, speed and
ease of use. These LDOs offer extremely low
quiescent current which only increases slightly
under load, thus providing advantages in
ground current performance over bipolar
LDOs. The LDOs handle an extremely wide
load range and guarantee stability with a 1μF
ceramic output capacitor. They have excellent
low frequency PSRR, not found in other CMOS
LDOs and thus offer exceptional Line
Regulation. High frequency PSRR is better
than 40dB up to 400kHz. Load Regulation is
An accurate 1.250V bandgap reference is
bootstrapped to the output in fixed output
versions of 2.7V and higher. This increases
both the low frequency and high frequency
PSRR. The adjustable version also has the
bandgap reference bootstrapped to the output,
thus the lowest externally programmable
output voltage is 2.7V. The 2.5V fixed output
version has the bandgap always connected to
the Vin pin. Unlike many LDOs, the bandgap
reference is not brought out for filtering by the
user. This tradeoff was made to maintain good
PSRR at high frequency (PSRR can be
degraded in a system due to switching noise
coupling into this pin). Also, often leakages of
the bypass capacitor or other components
cause an error on this high impedance
bandgap node. Thus, this tradeoff has been
made with "ease of use" in mind.
excellent
and
temperature
stability
is
comparable to bipolar LDOs. Thus, overall
system accuracy is maintained under all DC
and AC conditions. Enable feature is provided
on all versions. A Vout good indicator (RSN
pin) is provided in all the fixed output voltage
devices. An adjustable output version is also
available.
Current
Limit
and
Thermal
protection is provided internally and is well
controlled.
ARCHITECTURE
The SP6200 and SP6201 are only different in
their current limit threshold. The SP6200 has a
current limit of 140mA, while the SP6201
current limit is 420mA. The SP6201 can
provide pulsed load current of 300mA. The
© 2012 Exar Corporation
12/17
Rev. 2.1.0
SP6200 / SP6201
100mA/200mA Micropower CMOS LDO Regulators
bootstrapped to the output, the output voltage
must be above the minimum bandgap supply
PROTECTION
Current limit behavior is very well controlled,
providing less than 10% variation in the
current limit threshold over the entire
temperature range for both SP6200 and
SP6201. The SP6200 has a current limit of
140mA, while the SP6201 has a current limit
of 420mA. Thermal shutdown activates at
162°C and deactivates at 147°C. Thermal
shutdown is very repeatable with only a 2 to 3
degree variation from device to device.
Thermal shutdown changes by only 1 to 2
degrees with Vin change from 4V to 7V.
voltage. The bandgap requires 2.7V or greater
at -40°C and requires 2.5V or greater at 0°C.
The regulator's output can be adjusted to a
specific output voltage by using two external
resistors, see block diagram. The resistor's set
the output voltage based on the following
equation:
ꢋ
ꢉ
ꢌꢎ
ꢃ ꢄꢅꢆꢇ ꢈ ꢄ ꢊ
ꢀꢁꢂ
ꢋꢍ
Resistor values are not critical because the
ADJ node has a high input impedance, but for
best results use resistors of 470kΩ or less. A
capacitor from ADJ to VOUT pin provides
improved noise performance as is shown in
the following plot.
ENABLE (SHUTDOWN NOT) INPUT
The LDOs are turned off by pulling the EN pin
low and turned on by pulling it high. If it is not
necessary to shut down the LDO, the EN (pin
3) should be tied to IN (pin 1) to keep the
regulator output on at all time. The enable
threshold is 0.9V and does not change more
than 100mV over the entire temperature and
VIN voltage range. The lot to lot variations in
Enable Threshold are also within 100mV.
Shutdown current is guaranteed to be <1µA
without requiring the user to pull enable all
the way to 0V. Standard TTL or CMOS levels
will transition the device from totally on to
totally off.
RESET NOT (VOUT GOOD) OUTPUT
Fig. 42: Noise Performance 10Hz to 100kHz
An accurate VOUT good indicator is provided on
all the fixed output version devices, pin 4
(RSN), Figure 1. This is an open drain, logic
INPUT CAPACITOR
A small capacitor, 1μF or higher, is required
from VIN to GND to create a high frequency
bypass for the LDO amplifier. Any ceramic or
tantalum capacitor may be used at the input.
Capacitor ESR (effective series resistance)
should be smaller than 3Ω.
output that can be used to hold
a
microprocessor or microcontroller in a RESET
condition when its power supplied by VOUT is
4% out of nominal regulation. A 1% hysteresis
is included in the Reset Not function, so that
false alarms are not issued as a result of LDO's
output noise. The Reset Not function reacts in
10 to 50μs.
OUTPUT CAPACITOR
An output capacitor is required between VOUT
and GND to prevent oscillation; a capacitance
as low as 0.22μF can fulfill stability
requirements in most applications. A 1μF
capacitor will ensure unconditional stability
from no load to full load over the entire input
voltage, output voltage and temperature
range. Larger capacitor values improve the
ADJUSTABLE OUTPUT VERSION
The adjustable version can be programmed to
any voltage from 2.7V to 6V for the industrial
temperature range; 2.5V to 6V for the
commercial temperature range. The output
cannot be programmed below 2.5V due a
headroom restriction. Since the bandgap is
© 2012 Exar Corporation
13/17
Rev. 2.1.0
SP6200 / SP6201
100mA/200mA Micropower CMOS LDO Regulators
regulator's transient response. The output
ꢄꢆꢇꢜꢝ ꢙ ꢆꢇꢜꢝ
ꢄꢞꢄꢜꢝꢟꢠ
capacitor value may be increased without
limit. The output capacitor should have an ESR
(effective series resistance) below 5Ω and a
resonant frequency above 1MHz.
ꢏꢐ ꢃ
ꢃ ꢡꢅꢇꢆꢠ
To prevent the device from entering thermal
shutdown, maximum power dissipation cannot
be exceeded. Using the output voltage of 3.0V
and an output current of 200mA, the
maximum input voltage can be determined.
Ground pin current can be taken from the
electrical spec’s table (IGND=200µA at
IOUT=200mA). The maximum input voltage is
determined as follows:
NO LOAD STABILITY
The SP6200/SP6201 will remain stable and in
regulation with no external load (other than
the internal voltage driver) unlike many other
voltage regulators. This is especially important
in CMOS RAM keep-alive applications.
THERMAL CONSIDERATIONS
ꢔ
ꢘ
ꢔ
ꢘ
ꢡꢅꢇꢆꢠ ꢃ ꢙ ꢧꢅꢡ ꢈ ꢆꢡꢡꢨꢩ ꢊ ꢢꢣ ꢈ ꢡꢅꢆꢨꢩ
ꢢꢣ
The SP6200 is designed to provide 100mA of
continuous current, while the SP6201 will
provide 200mA of continuous current.
Maximum power dissipation can be calculated
based on the output current and the voltage
drop across the part. To determine the
maximum power dissipation in the package,
Solving for VIN, we get:
ꢡꢅꢇꢆꢠ ꢊ ꢡꢅꢪꢠ
ꢃ
ꢢꢣ
ꢆꢡꢡꢅꢆꢨꢩ
After calculations, we find that the maximum
input voltage of a 3.0V application at 200mA
of output current in an SOT-23-5 package is
5.59V.
use
the
junction-to-ambient
thermal
resistance of the device and the following
basic equation:
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ꢚ
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ꢖ
ꢒ
DUAL-SUPPLY OPERATION
ꢏꢐ ꢃ
ꢛꢓꢖ
When used in dual supply systems where the
regulator load is returned to a negative
supply, the output voltage must be diode
clamped to ground.
TJ(MAX) is the maximum junction temperature of
the die and is 125°C. TA is the ambient
operating. θJA is the junction-to-ambient
thermal resistance for the regulator and is
layout dependent.
The actual power dissipation of the regulator
circuit can be determined using one simple
equation:
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ꢏꢐ ꢃ
ꢃ ꢡꢅꢇꢆꢠ
ꢄꢞꢄꢜꢝꢟꢠ
ꢔ
ꢘ
ꢈ ꢤꢀꢁꢂ ꢊ ꢢꢣ ꢈ ꢤꢥꢣꢐ
ꢏꢐ ꢃ ꢢꢣ ꢙ
ꢀꢁꢂ
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Substituting PD(max) for PD and solving for the
operating conditions that are critical to the
application will give the maximum operating
conditions for the regulator circuit. For
example, if we are operating the SP6201- 3.0V
at room temperature, with a SOT-23-5
package on a 4 layer standard board we can
determine the maximum input voltage for a
set output current.
© 2012 Exar Corporation
14/17
Rev. 2.1.0
SP6200 / SP6201
100mA/200mA Micropower CMOS LDO Regulators
PACKAGE SPECIFICATION
5 PIN SOT-23
© 2012 Exar Corporation
15/17
Rev. 2.1.0
SP6200 / SP6201
100mA/200mA Micropower CMOS LDO Regulators
8-PIN DFN
© 2012 Exar Corporation
16/17
Rev. 2.1.0
SP6200 / SP6201
100mA/200mA Micropower CMOS LDO Regulators
REVISION HISTORY
Revision
Date
Description
Reformatted Data Sheet
Includes top package marking update.
03/28/2012
05/29/2012
2.0.0
2.1.0
Corrected typographical error on page 1.
FOR FURTHER ASSISTANCE
Email:
customersupport@exar.com
Exar Technical Documentation:
http://www.exar.com/TechDoc/default.aspx?
EXAR CORPORATION
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Tel.: +1 (510) 668-7000
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www.exar.com
NOTICE
EXAR Corporation reserves the right to make changes to the products contained in this publication in order to improve
design, performance or reliability. EXAR Corporation assumes no responsibility for the use of any circuits described herein,
conveys no license under any patent or other right, and makes no representation that the circuits are free of patent
infringement. Charts and schedules contained here in are only for illustration purposes and may vary depending upon a
user’s specific application. While the information in this publication has been carefully checked; no responsibility, however,
is assumed for inaccuracies.
EXAR Corporation does not recommend the use of any of its products in life support applications where the failure or
malfunction of the product can reasonably be expected to cause failure of the life support system or to significantly affect its
safety or effectiveness. Products are not authorized for use in such applications unless EXAR Corporation receives, in
writing, assurances to its satisfaction that: (a) the risk of injury or damage has been minimized; (b) the user assumes all
such risks; (c) potential liability of EXAR Corporation is adequately protected under the circumstances.
Reproduction, in part or whole, without the prior written consent of EXAR Corporation is prohibited.
© 2012 Exar Corporation
17/17
Rev. 2.1.0
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