MIC5233-5YMS [MICROCHIP]
Fixed Positive LDO Regulator;
| 型号： | MIC5233-5YMS |
| 厂家： | 
MICROCHIP |
| 描述： | Fixed Positive LDO Regulator 输出元件 调节器 |
| 文件： | 总20页 (文件大小：1062K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MIC5233
High Input Voltage, Low IQ µCap LDO Regulator
Features
General Description
• AEC-Q100 Qualified and PPAP Capable;
Available for 5-Lead SOT23 Package Only
The MIC5233 is a 100 mA, highly accurate, low dropout
regulator with high input voltage and ultra-low ground
current. This combination of high voltage and low
ground current makes the MIC5233 ideal for multicell
Li-Ion battery systems.
• Wide Input Voltage Range: 2.3V to 36V
• Ultra-Low Ground Current: 18 µA
• Low Dropout Voltage of 270 mV at 100 mA
• High Output Accuracy of ±2.0% Overtemperature
A µCap LDO design, the MIC5233 is stable with either
ceramic or tantalum output capacitors. It only requires
a 2.2 µF output capacitor for stability.
• µCap: Stable with Ceramic or Tantalum
Capacitors
Features of the MIC5233 include enable input, thermal
shutdown, current limit and reverse battery protection,
and reverse leakage protection.
• Excellent Line and Load Regulation Specifications
• Near Zero Shutdown Current: Typical 0.1 µA
• Reverse Battery Protection
Available in fixed and adjustable output voltage ver-
sions, the MIC5233 is offered in the 5-lead SOT23 and
3-lead SOT223 packages with a junction temperature
range of –40°C to +125°C.
• Reverse Leakage Protection
• Thermal Shutdown and Current Limit Protection
• 5-Lead SOT23 and 3-Lead SOT223 Packages
Applications
• Keep-Alive Supply in Notebook and Portable
Computers
Typical Application Circuit
Ultra-Low Current Adjustable Regulator
Application
• USB Power Supply
• Logic Supply for High-Voltage Batteries
• Automotive Electronics
MIC5233YM5
1
5
VIN
VOUT
• Battery-Powered Systems
• 3-4 Cell Li-Ion Battery Input Range
R1
R2
2
3
COUT = 2.2 μF
CERAMIC
CIN = 1.0 μF
4
OFF
ON
I
GND = 18 μA
EN
2018-2019 Microchip Technology Inc.
DS20006033D-page 1
MIC5233
Package Types
MIC5233
5-Pin SOT23
(Top View)
MIC5233
3-Pin SOT223
(Top View)
EN
GND
IN
GND
4
2
3
1
L3xx
4
5
1
3
2
NC OR ADJ OUT
GND
IN
OUT
DS20006033D-page 2
2018-2019 Microchip Technology Inc.
MIC5233
Functional Block Diagrams
Fixed Output Voltage (SOT23 Package)
Fixed Output Voltage (SOT223 Package)
OUT
OUT
IN
IN
EN
ENABLE
ENABLE
R1
R2
R1
R2
VREF
VREF
GND
GND
Adjustable Output Voltage
(SOT223 and SOT23 Packages)
OUT
IN
EN
ENABLE
VREF
R1
R2
ADJ
GND
2018-2019 Microchip Technology Inc.
DS20006033D-page 3
MIC5233
1.0
ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings†
Input Supply Voltage (VIN)........................................................................................................................... –20V to +38V
Enable Input Voltage (VEN) ........................................................................................................................ –0.3V to +38V
Power Dissipation (PDIS)........................................................................................................................Internally Limited
ESD Rating (Note 1)..................................................................................................................................ESD Sensitive
Operating Ratings‡
Input Supply Voltage (VIN)..........................................................................................................................+2.3V to +36V
Enable Input Voltage (VEN) ............................................................................................................................. 0V to +36V
† Notice: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device.
This is a stress rating only and functional operation of the device at those or any other conditions above those
indicated in the operational sections of this specification is not intended. Exposure to maximum rating conditions for
extended periods may affect device reliability. Specifications are for packaged product only.
‡ The device is not ensured to function outside its operating ratings.
Note 1: Devices are ESD sensitive. Handling precautions are recommended.
TABLE 1-1:
ELECTRICAL CHARACTERISTICS
Electrical Characteristics: TJ = +25°C with VIN = VOUT + 1V; IOUT = 100 µA; Bold values indicate –40°C ≤ TJ ≤ +125°C,
unless otherwise specified. Specifications for packaged product only.
Parameter
Symbol
Min.
Typ.
Max.
Units Conditions
Output Voltage Accuracy
VOUT
–1.0
–2.0
—
—
—
1.0
2.0
0.5
1
%
Variation from nominal VOUT
Line Regulation
Load Regulation
Dropout Voltage
ΔVOUT/ΔVIN
ΔVOUT/VOUT
VDO
0.04
0.25
50
%
%
VIN = VOUT + 1V to 36V
IOUT = 100 µA to 100 mA
IOUT = 100 µA
—
—
—
—
230
—
300
400
400
450
30
IOUT = 50 mA
IOUT = 100 mA
IOUT = 100 µA
—
mV
—
270
—
—
Ground Current
IGND
—
18
µA
—
—
35
—
0.25
1
0.70
2
IOUT = 50 mA
IOUT = 100 mA
mA
µA
—
Ground Current in Shutdown
Short-Circuit Current
ISHDN
—
0.1
1
VEN ≤ 0.6V; VIN = 36V (SOT23
package only)
ISC
—
—
190
350
mA
V
VOUT = 0V
Output Leakage, Reverse
VOUT
–0.1
—
Load = 500Ω; VIN = –15V
Polarity Input (Note 2)
Enable Input (SOT23 Package Only)
Input Low Voltage
VEN
—
2.0
–1.0
—
—
—
0.6
—
V
V
Regulator off
Input High Voltage
Regulator on
Enable Input Current
IEN
VEN = 0.6V; regulator off
VEN = 2.0V; regulator on
VEN = 36V; regulator on
VIN applied before EN signal
0.01
0.1
0.5
1.7
1.0
1.0
2.5
7
µA
—
Start-up Time
tSTART
—
ms
Note 1: The maximum allowable power dissipation is a function of ambient temperature, the maximum allowable
junction temperature and the thermal resistance from junction to air (i.e., TA, TJ, JA). Exceeding the
maximum allowable power dissipation will cause the device operating junction temperature to exceed the
maximum +125°C rating. Sustained junction temperatures above +125°C can impact the device reliability.
2: Design guidance only, not production tested.
DS20006033D-page 4
2018-2019 Microchip Technology Inc.
MIC5233
(1)
TEMPERATURE SPECIFICATIONS
Parameters
Sym.
Min.
Typ.
Max.
Units
Conditions
Temperature Ranges
Junction Operating Temperature Range
Storage Temperature Range
TJ
–40
–65
—
—
+125
+150
°C
°C
—
—
TS
Package Thermal Resistances
Thermal Resistance 5-Lead SOT23
Thermal Resistance 3-Lead SOT223
JA
JA
—
—
235
50
—
—
°C/W
°C/W
—
—
Note 1: The maximum allowable power dissipation is a function of ambient temperature, the maximum allowable
junction temperature and the thermal resistance from junction to air (i.e., TA, TJ, JA). Exceeding the
maximum allowable power dissipation will cause the device operating junction temperature to exceed the
maximum +125°C rating. Sustained junction temperatures above +125°C can impact the device reliability.
2: Design guidance only, not production tested.
2018-2019 Microchip Technology Inc.
DS20006033D-page 5
MIC5233
2.0
TYPICAL PERFORMANCE CURVES
Note: The graphs and tables provided following this note are a statistical summary based on a limited number of
samples and are provided for informational purposes only. The performance characteristics listed herein
are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified
operating range (e.g., outside specified power supply range) and therefore outside the warranted range.
FIGURE 2-1:
Ratio.
Power Supply Rejection
Dropout Voltage vs. Output
Dropout Voltage vs.
FIGURE 2-4:
Dropout Characteristics.
FIGURE 2-5:
Output Current.
Ground Pin Current vs.
FIGURE 2-2:
Current.
FIGURE 2-6:
Ground Pin Current vs.
FIGURE 2-3:
Output Current.
Temperature.
DS20006033D-page 6
2018-2019 Microchip Technology Inc.
MIC5233
FIGURE 2-7:
Temperature.
Ground Pin Current vs.
Ground Pin Current vs.
Ground Pin Current vs.
FIGURE 2-10:
Input Voltage.
Ground Pin Current vs.
FIGURE 2-11:
Input Voltage.
Ground Pin Current vs.
FIGURE 2-8:
Temperature.
FIGURE 2-12:
Ground Pin Current vs.
FIGURE 2-9:
Input Voltage.
Temperature.
2018-2019 Microchip Technology Inc.
DS20006033D-page 7
MIC5233
FIGURE 2-13:
Input Current vs. Supply
FIGURE 2-16:
Load Transient Response.
Voltage.
FIGURE 2-14:
Output Voltage vs.
Temperature.
FIGURE 2-15:
Short-Circuit Current vs.
Temperature.
DS20006033D-page 8
2018-2019 Microchip Technology Inc.
MIC5233
3.0
PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 3-1.
TABLE 3-1:
PIN FUNCTION TABLE
Pin Number
SOT223
Pin Number
SOT23
Pin
Name
Description
1
2
1
2
3
4
IN
GND
EN
Supply Input.
Ground.
—
—
Enable (Input). Logic Low = Shutdown; Logic High = Enable.
No Connect.
NC
ADJ
Adjustable (Input). Feedback Input; Connect to Resistive Voltage
Divider Network.
3
4
5
OUT
EP
Regulator Output.
—
Exposed Pad. Internally Connected to Ground.
2018-2019 Microchip Technology Inc.
DS20006033D-page 9
MIC5233
To determine the maximum power dissipation of the
package, use the junction-to-ambient thermal
resistance of the device and Equation 4-1:
4.0
4.1
APPLICATION INFORMATION
Enable/Shutdown
EQUATION 4-1:
The MIC5233 comes with an active-high enable pin
that allows the regulator to be disabled. Forcing the
enable pin low disables the regulator and sends it into
a “Zero” Off mode current state, consuming a typical
0.1 µA. Forcing the enable pin high enables the output
voltage.
T
JMAX – TA
PDMAX
=
-------------------------------
JA
Where:
TJ(MAX) = Maximum junction temperature of
the die at +125°C
4.2
Input Capacitor
TA
= The ambient operating temperature
= Layout dependent
The MIC5233 has a high input voltage capability, up to
36V. The input capacitor must be rated to sustain volt-
ages that may be used on the input. An input capacitor
may be required when the device is not near the source
power supply or when supplied by a battery. Small
surface mount, ceramic capacitors can be used for
bypassing. A larger value may be required if the source
supply has high ripple.
θJA
Table 4-1 shows examples of the junction-to-ambient
thermal resistance for the MIC5233:
TABLE 4-1:
5-LEAD SOT23 AND SOT-223
THERMAL RESISTANCE
θJA Recommended
Minimum Footprint
Package
4.3
Output Capacitor
SOT23-5
SOT223
235°C/W
50°C/W
The MIC5233 requires an output capacitor for stability.
The design requires 2.2 µF or greater on the output to
maintain stability. The design is optimized for use with
low-ESR ceramic chip capacitors. High-ESR capacitors
may cause high-frequency oscillation. The maximum
recommended ESR is 3Ω. The output capacitor can be
increased without limit. Larger valued capacitors help to
improve transient response.
The actual power dissipation of the regulator circuit can
be determined using Equation 4-2:
EQUATION 4-2:
PD = VIN – VOUTIOUT + VIN IGND
X7R/X5R dielectric-type ceramic capacitors are recom-
mended because of their temperature performance.
X7R-type capacitors change capacitance by 15% over
their operating temperature range and are the most
stable type of ceramic capacitors. Z5U and Y5V dielectric
capacitors change value by as much as 50% and 60%,
respectively, over their operating temperature ranges. To
use a ceramic chip capacitor with Y5V dielectric, the
value must be much higher than an X7R ceramic capac-
itor to ensure the same minimum capacitance over the
equivalent operating temperature range.
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, when operating the MIC5233-3.0YM5 at
+50°C, with a minimum footprint layout, the maximum
input voltage for a set output current can be determined
as follows:
EQUATION 4-3:
125C – 50C
----------------------------------
235C/W
PDMAX
=
4.4
No-Load Stability
The MIC5233 will remain stable and in regulation with
no load unlike many other voltage regulators. This is
especially important in CMOS RAM keep-alive
applications.
Where:
PD(max) = 319 mW
The junction-to-ambient (θJA) thermal resistance for
the minimum footprint is +235°C/W from Table 4-1. It is
important that the maximum power dissipation not be
exceeded to ensure proper operation. Because the
MIC5233 was designed to operate with high input
voltages, careful consideration must be given so as not
to overheat the device. With very high input-to-output
voltage differentials, the output current is limited by the
total power dissipation.
4.5
Thermal Consideration
The MIC5233 is designed to provide 100 mA of contin-
uous current in a very small package. Maximum power
dissipation can be calculated based on the output
current and the voltage drop across the part.
DS20006033D-page 10
2018-2019 Microchip Technology Inc.
MIC5233
Total power dissipation is calculated using the following
equation:
4.6
Adjustable Regulator Application
The MIC5233M5 can be adjusted from 1.24V to 20V by
using two external resistors (Figure 4-1). The resistors
set the output voltage based on the following equation:
EQUATION 4-4:
PD = VIN – VOUTIOUT + VIN IGND
EQUATION 4-8:
R1
R2
Due to the potential for input voltages up to 36V, ground
current must be taken into consideration.
1 + ------
VOUT = V
REF
Where
VREF = 1.24V
If we know the maximum load current, we can solve for
the maximum input voltage using the maximum power
dissipation calculated for a +50°C ambient, 319 mW.
EQUATION 4-5:
Feedback resistor R2 should be no larger than 300 kΩ.
PDMAX = VIN – VOUTIOUT + VIN IGND
MIC5233YM5
VIN
VOUT
IN
OUT
319mW = VIN – 3V100mA + VIN 2.8mA
R1
R2
EN
ADJ
2.2 μF
1.0 μF
GND
Ground pin current is estimated using the typical
characteristics of the device.
EQUATION 4-6:
FIGURE 4-1:
Application.
Adjustable Voltage
619mW = VIN102.8mA
Where:
VIN
= 6.02V
For higher current outputs, only a lower input voltage
will work for higher ambient temperatures.
Assuming a lower output current of 10 mA, the
maximum input voltage can be recalculated:
EQUATION 4-7:
319mW = VIN – 3V10mA + VIN 0.1mA
349mW = VIN 10.1mA
Where:
VIN = 34.55V
Maximum input voltage for a 10 mA load current at
50°C ambient temperature is 34.55V, utilizing virtually
the entire operating voltage range of the device.
2018-2019 Microchip Technology Inc.
DS20006033D-page 11
MIC5233
5.0
5.1
PACKAGING INFORMATION
Package Marking Information
Example
5-Lead SOT23*
XXXX
5233
XXXXNNNP
33YS464P
Example
3-Lead SOT223*
XXXX
L350
Legend: XX...X Product code or customer-specific information
Y
Year code (last digit of calendar year)
YY
WW
NNN
Year code (last 2 digits of calendar year)
Week code (week of January 1 is week ‘01’)
Alphanumeric traceability code
3
Pb-free JEDEC® designator for Matte Tin (Sn)
This package is Pb-free. The Pb-free JEDEC designator (
can be found on the outer packaging for this package.
e
*
e
3
)
●, ▲, ▼ Pin one index is identified by a dot, delta up, or delta down (triangle
mark).
Note: In the event the full Microchip part number cannot be marked on one line, it will
be carried over to the next line, thus limiting the number of available
characters for customer-specific information. Package may or may not include
the corporate logo.
Underbar (_) and/or Overbar (⎯) symbol may not be to scale.
DS20006033D-page 12
2018-2019 Microchip Technology Inc.
MIC5233
5-Lead SOT23 Package Outline and Recommended Land Pattern
Note: For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging.
2018-2019 Microchip Technology Inc.
DS20006033D-page 13
MIC5233
3-Lead SOT223 Package Outline and Recommended Land Pattern
Note: For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging.
DS20006033D-page 14
2018-2019 Microchip Technology Inc.
MIC5233
APPENDIX A: REVISION HISTORY
Revision D (July 2019)
• Updated the Features section.
Revision C (February 2019)
• Information about the Automotive Grade option
added in Features but removed from Package
Types, and the Product Identification System
sections of the data sheet.
• Updated the Typical Application Circuit on the
very first page.
Revision B (June 2018)
• Unbolded values for VEN in Table 1-1.
• The condition for Start-Up Time in the Electrical
Characteristics table is updated.
Revision A (May 2018)
• Converted Micrel document MIC5233 to Micro-
chip data sheet DS20006033A.
• Minor text changes throughout.
• Information about the Automotive Grade option
added in Features, Package Types, and the
Product Identification System sections of the data
sheet.
2018-2019 Microchip Technology Inc.
DS20006033D-page 15
MIC5233
NOTES:
DS20006033D-page 16
2018-2019 Microchip Technology Inc.
MIC5233
PRODUCT IDENTIFICATION SYSTEM
To order or obtain information, e.g., on pricing or delivery, contact your local Microchip representative or sales office.
Examples:
PART NO. –X.X
Device Output
X
XXX
–XX
a) MIC5233-1.8YM5-TR: High Input Voltage, Low IQ µCap
LDO Regulator, 1.8V, –40°C to
Junction
Package Media Type
+125°C, 5-Lead SOT23, 3000/Reel
Voltage Temperature
Range
b) MIC5233-2.5YM5-TR: High Input Voltage, Low IQ µCap
LDO Regulator, 2.5V, –40°C to
+125°C, 5-Lead SOT23, 3000/Reel
Device:
MIC5233: High Input Voltage, Low IQ µCap
c) MIC5233-3.0YM5-TR: High Input Voltage, Low IQ µCap
LDO Regulator, 3.0V, –40°C to
LDO Regulator
+125°C, 5-Lead SOT23, 3000/Reel
d) MIC5233-3.3YM5-TR: High Input Voltage, Low IQ µCap
LDO Regulator, 3.3V, –40°C to
Output Voltage:
1.8 = 1.8V
2.5 = 2.5V
+125°C, 5-Lead SOT23, 3000/Reel
e) MIC5233-5.0YM5-TR: High Input Voltage, Low IQ µCap
LDO Regulator, 5.0V, –40°C to
3.0 = 3.0V
3.3 = 3.3V
+125°C, 5-Lead SOT23, 3000/Reel
5.0 = 5.0V
f) MIC5233YM5-TR:
g) MIC5233-3.3YS:
h) MIC5233-5.0YS:
i) MIC5233-5.0YS-TR:
High Input Voltage, Low IQ µCap
LDO Regulator, Adjustable, –40°C to
+125°C, 5-Lead SOT23, 3000/Reel
Adjustable <blank> = Adjustable
Junction
Temperature Range:
Y
=
–40°C to +125°C
High Input Voltage, Low IQ µCap
LDO Regulator, 3.3V, –40°C to
+125°C, 3-Lead SOT223, 78/Tube
Package:
M5
S
=
=
5-Lead SOT23
3-Lead SOT223
High Input Voltage, Low IQ µCap
LDO Regulator, 5.0V, –40°C to
+125°C, 3-Lead SOT223, 78/Tube
High Input Voltage, Low IQ µCap
LDO Regulator, 5.0V, –40°C to
+125°C, 3-Lead SOT223, 2500/Reel
Media Type:
<blank>
TR
TR
=
=
=
78/Tube (SOT223 Only)
2,500/Reel (SOT223 Only)
3000/Reel (SOT23 Only)
Note: Tape and Reel identifier only appears in the catalog
part number description. This identifier is used for
ordering purposes and is not printed on the device
package. Check with your Microchip Sales Office for
package availability with the Tape and Reel option.
2018-2019 Microchip Technology Inc.
DS20006033D-page 17
MIC5233
NOTES:
DS20006033D-page 18
2018-2019 Microchip Technology Inc.
Note the following details of the code protection feature on Microchip devices:
•
Microchip products meet the specification contained in their particular Microchip Data Sheet.
•
Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the
intended manner and under normal conditions.
•
There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our
knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data
Sheets. Most likely, the person doing so is engaged in theft of intellectual property.
•
•
Microchip is willing to work with the customer who is concerned about the integrity of their code.
Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not
mean that we are guaranteeing the product as “unbreakable.”
Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our
products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts
allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.
Information contained in this publication regarding device
applications and the like is provided only for your convenience
and may be superseded by updates. It is your responsibility to
ensure that your application meets with your specifications.
MICROCHIP MAKES NO REPRESENTATIONS OR
WARRANTIES OF ANY KIND WHETHER EXPRESS OR
IMPLIED, WRITTEN OR ORAL, STATUTORY OR
OTHERWISE, RELATED TO THE INFORMATION,
INCLUDING BUT NOT LIMITED TO ITS CONDITION,
QUALITY, PERFORMANCE, MERCHANTABILITY OR
FITNESS FOR PURPOSE. Microchip disclaims all liability
arising from this information and its use. Use of Microchip
devices in life support and/or safety applications is entirely at
the buyer’s risk, and the buyer agrees to defend, indemnify and
hold harmless Microchip from any and all damages, claims,
suits, or expenses resulting from such use. No licenses are
conveyed, implicitly or otherwise, under any Microchip
intellectual property rights unless otherwise stated.
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© 2018-2019, Microchip Technology Incorporated, All Rights
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For information regarding Microchip’s Quality Management Systems,
please visit www.microchip.com/quality.
ISBN: 978-1-5224-4759-7
2018-2019 Microchip Technology Inc.
DS20006033D-page 19
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DS20006033D-page 20
2018-2019 Microchip Technology Inc.
05/14/19
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