MIC5200-3.3YMTR [MICROCHIP]
3.3V FIXED POSITIVE LDO REGULATOR, 0.35V DROPOUT, PDSO8, LEAD FREE, SOIC-8;
| 型号： | MIC5200-3.3YMTR |
| 厂家： | 
MICROCHIP |
| 描述： | 3.3V FIXED POSITIVE LDO REGULATOR, 0.35V DROPOUT, PDSO8, LEAD FREE, SOIC-8 光电二极管 输出元件 调节器 |
| 文件： | 总10页 (文件大小：173K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MIC5200
100mA Low-Dropout Regulator
Features
General Description
The MIC5200 is an efficient linear voltage regulator with
very low dropout voltage (typically 17mV at light loads and
200mV at 100mA), and very low ground current (1mA at
100mA output), offering better than 1% initial accuracy with
a logic compatible ON/OFF switching input. Designed espe-
cially for hand-held battery powered devices, the MIC5200
is switched by a CMOS or TTL compatible logic signal. The
ENABLE control may be tied directly to VIN if unneeded.
When disabled, power consumption drops nearly to zero.
The ground current of the MIC5200 increases only slightly in
dropout,furtherprolongingbatterylife.KeyMIC5200features
include protection against reversed battery, current limiting,
and over-temperature shutdown.
• High output voltage accuracy
• Variety of output voltages
• Guaranteed 100mA output
• Low quiescent current
• Low dropout voltage
• Extremely tight load and line regulation
• Very low temperature coefficient
• Current and thermal limiting
• Zero OFF mode current
• Logic-controlled electronic shutdown
• Available in 8-lead SOIC, MM8™ 8-lead MSOP,
and SOT-223 packages
Applications
• Cellular Telephones
• Laptop, Notebook, and Palmtop Computers
• Battery Powered Equipment
• PCMCIA VCC and VPP Regulation/Switching
• Bar Code Scanners
The MIC5200 is available in several fixed voltages and ac-
curacy configurations. Other options are available; contact
Micrel for details.
• SMPS Post-Regulator/ DC to DC Modules
• High Efficiency Linear Power Supplies
Typical Application
MIC5200-3.3
Output
1µF
Enable
Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
M9999-040805
1
April 2005
MIC5200
Micrel, Inc.
Ordering Information
Part Number
Voltage
Accuracy
Junction Temp. Range*
Package
Standard
Pb-Free
MIC5200-3.0BM
MIC5200-3.3BM
MIC5200-4.8BM
MIC5200-5.0BM
MIC5200-3.0YM
MIC5200-3.3YM
MIC5200-4.8YM
MIC5200-5.0YM
3.0
3.3
4.8
5.0
3.3
5.0
3.0
3.3
4.8
5.0
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
8-Pin SOIC
8-Pin SOIC
8-Pin SOIC
8-Pin SOIC
MIC5200-3.3BMM MIC5200-3.3YMM
MIC5200-5.0BMM MIC5200-5.0YMM
8-Pin MSOP
8-Pin MSOP
3-lead SOT-223
3-lead SOT-223
3-lead SOT-223
3-lead SOT-223
MIC5200-3.0BS
MIC5200-3.3BS
MIC5200-4.8BS
MIC5200-5.0BS
MIC5200-3.0YS
MIC5200-3.3YS
MIC5200-4.8YS
MIC5200-5.0YS
* Other voltage options available. Contact Micrel Marketing for information.
Pin Configuration
OUT
OUT
IN
IN
NC
EN
NC
GND
2
3
1
MIC5200-x.xBM
(SOIC-8)
IN GND OUT
MIC5200-x.xBM
(MSOP-8)
MIC5200-x.xBS
(SOT-223)
EN may be tied directly to VIN
Pin Description
Pin Number
Pin Number
Pin Name
Pin Function
SOT-223
SO-8, MSOP-8
3
2, TAB
1
1, 2
3, 6
OUT
NC
Output: Pins 1 and 2 must be externally connected together.
(not internally connected): Connect to ground plane for lowest thermal resis-
tance.
4
5
GND
EN
Ground: Ground pin and TAB are internally connected.
Enable/Shutdown (Input): TTL compatible input. High = enabled;
low = shutdown.
7, 8
IN
Supply Input: Pins 7 and 8 must be extenally connected together.
April 2005
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M9999-040805
MIC5200
Micrel, Inc.
Absolute Maximum Ratings
Recommended Operating Conditions
Input Voltage ................................................................2.5V to 26V
Operating Junction Temperature Range.............. –40°C to +125°C
Enable Input Voltage .....................................................–20V to VIN
Power Dissipation................................................ Internally Limited
Lead Temperature (soldering, 5 sec.)....................................260°C
Operating Junction Temperature Range.............. –40°C to +125°C
Input Supply Voltage .................................................–20V to +60V
Enable Input Voltage .................................................–20V to +60V
Thermal Characteristics
SOT-223 (θJC) ..................................................................... 15°C/W
SO-8 (θJA) ......................................................................See Note 1
Absolute Maximum Ratings indicate limits beyond which damage
to the device may occur. Electrical specifications do not apply when
operating the device beyond its specified Operating Ratings.
Electrical Characteristics
Limits in standard typeface are for TJ = 25°C and limits in boldface apply over the junction temperature range of –40°C to +125°C. Un-
less otherwise specified, VIN = VOUT + 1V, IL = 1mA, CL = 3.3µF, and VENABLE ≥ 2.0V
Symbol
Parameter
Conditions
Min Typical Max
Units
VO
Output Voltage
Accuracy
Variation from specified VOUT
–1
–2
1
2
%
∆VO
∆T
Output Voltage
Temperature Coef.
(Note 2)
40
0.004
0.04
150 ppm/°C
∆VO
VIN
Line Regulation
Load Regulation
VIN = VOUT + 1 V to 26V
IL = 0.1mA to 100mA (Note 3)
0.10
0.40
%
%
∆VO
VOUT
0.16
0.30
VIN – VO
Dropout Voltage
(Note 4)
IL = 100µA
IL = 20mA
IL = 30mA
IL = 50mA
IL = 100mA
17
mV
130
150
190
230
350
IGND
IGND
Quiescent Current
Ground Pin Current
VENABLE ≤ 0.7V (Shutdown)
0.01
10
µA
µA
VENABLE ≥ 2.0V, IL = 100µA
IL = 20mA
IL = 30mA
IL = 50mA
IL = 100mA
130
270
330
500
1000
350
1500
330
PSRR
IGNDDO
Ripple Rejection
70
dB
µA
Ground Pin
Current at Dropout
VIN = 0.5V less than specified VOUT
IL = 100µA (Note 5)
270
ILIMIT
Current Limit
VOUT = 0V
(Note 6)
100
250
mA
∆VO
∆PD
Thermal Regulation
0.05
%/W
en
Output Noise
100
µV
ENABLE Input
Input Voltage Level
VIL
Logic Low
Logic High
OFF
ON
0.7
V
2.0
IIL
IIH
ENABLE Input Current
VIL ≤ 0.7V
VIH ≥ 2.0V
0.01
15
1
50
µA
M9999-040805
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April 2005
MIC5200
Micrel, Inc.
Note 1:
Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical specifications do
not apply when operating the device outside of its rated operating conditions. The maximum allowable power dissipation is a
function of the maximum junction temperature, TJ (MAX), the junction-to-ambient thermal resistance, θJA, and the ambient tem-
perature, TA. The maximum allowable power dissipation at any ambient temperature is calculated using: P(MAX) = (TJ(MAX) – TA)
÷ θJA. Exceeding the maximum allowable power dissipation will result in excessive die temperature, and the regulator will go
into thermal shutdown. The θJC of the MIC5200-xxBS is 15°C/W and θJA for the MIC5200BM is 160°C/W mounted on a PC
board (see “Thermal Considerations” section for further details).
Note 2:
Note 3:
Output voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature
range.
Regulation is measured at constant junction temperature using low duty cycle pulse testing. Parts are tested for load regula-
tion in the load range from 0.1mA to 100mA. Changes in output voltage due to heating effects are covered by the thermal
regulation specification.
Note 4:
Note 5:
Note 6:
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.
Ground pin current is the regulator quiescent current plus pass transistor base current. The total current drawn from the
supply is the sum of the load current plus the ground pin current.
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 = 26V for t = 10ms.
April 2005
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M9999-040805
MIC5200
Micrel, Inc.
Typical Characteristics
Dropout Voltage
vs. Output Current
Dropout Voltage
vs. Temperature
Dropout
Characteristics
250
0.4
0.3
0.2
0.1
0.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
200
150
100
50
IL = 100mA
IL = 100mA
IL = 100µA,1mA
IL = 1mA
0
0.01 0.1
1
10
100 1000
-60 -30
0
30 60 90 120 150
0
2
4
6
8
10
OUTPUT CURRENT (mA)
TEMPERATURE (°C)
INPUT VOLTAGE (V)
Ground Current
vs. Output Current
Output Voltage
vs. Output Current
Ground Current
vs. Supply Voltage
10
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
CIN = 2.2µF
COUT = 4.7µF
IL = 100mA
1
IL = 1mA
0.1
0.01
0.1
1
10
100
0
2
4
6
8
10
0.0
0.1
0.2
0.3
OUTPUT CURRENT (mA)
SUPPLY VOLTAGE (V)
OUTPUT CURRENT (A)
Ground Current
vs. Temperature
Ground Current
vs. Temperature
Thermal Regulation
(3.3V Version)
0.30
0.25
0.20
0.15
1.5
1.4
1.3
1.2
1.1
1.0
100
ILOAD = 100µA
CIN = 2.2µF
COUT = 4.7µF
ILOAD = 100mA
CIN = 2.2µF
COUT = 4.7µF
50
0
CL = 4.7 µF
2-0500
100
0
-100
-60 -30
0
30 60 90 120 150
-50
0
50
100
150
-5
0
5
10 15 20 25 30 35
TIME (ms)
TEMPERATURE (°C)
TEMPERATURE (°C)
Output Current
vs. Temperature
Minimum Input Voltage
vs. Temperature
Output Voltage vs. Temp.
(3.3V Version)
3.6
3.5
3.4
3.3
3.2
3.1
3.0
300
3.30
3.29
3.28
3.27
3.26
3.25
3.24
3.23
3.22
3.21
3.20
280
260
240
220
200
180
160
140
120
100
CIN = 2.2µF
COUT = 4.7µF
CIN = 2.2µF
COUT = 4.7µF
ILOAD = 1mA
VOUT = 3.3V
3 DEVICES :
HI / AVG / LO
VOUT = 0V
(SHORT CIRCUIT)
CURVES APPLICABLE
AT100µA AND100mA
-60 -30
0
30 60 90 120 150
-60 -30
0
30 60 90 120 150
-60 -30
0
30 60 90 120 150
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
M9999-040805
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April 2005
MIC5200
Micrel, Inc.
Short Circuit Current
vs. Input Voltage
Load Transient
Load Transient
300
20
10
0
20
10
0
250
200
150
100
50
-10
-20
-10
-20
CL = 4.7µF
CL = 47µF
3-
0
3
0
0
3-0300
CIN = 2.2µF
COUT = 4.7µF
VOUT = 3.3V
200
100
0
200
100
0
0
1
2
3
4
5
6
7
-2
0
2
4
6
8
10
-10
0
10
20
30
40
INPUT VOLTAGE (V)
TIME (ms)
TIME (ms)
Supply Current vs. Supply
Voltage (3.3V Version)
Line Transient
Line Transient
120
100
80
60
40
20
0
10
5
15
10
5
CL = 1 µF
IL = 1mA
CL = 10 µF
IL = 1mA
0
-5
0
-1
8
0
-
8
6
4
6
4
RL = 33Ω
2
-0.2
2
-0.1
0
1
2
3
4
5
6
7
8
9 10
0
0.2
0.4
0.6
0.8
0
0.1 0.2 0.3 0.4 0.5 0.6
TIME (ms)
SUPPLY VOLTAGE (V)
TIME (ms)
Supply Current vs. Supply
Voltage (3.3V Version)
Enable Transient
(3.3V Version)
Enable Transient
(3.3V Version)
60
50
40
30
20
10
0
5
4
3
2
1
0
5
4
3
2
1
0
CL = 4.7 µF
IL = 100mA
CL = 4.7 µF
IL = 1mA
-
4
2
0
-
4
2
0
RL = 66Ω
-2
-50
-2
-50
0
1
2
3
4
5
6
7
0
50 100 150 200 250 300
TIME(µs)
0
50 100 150 200 250 300
TIME(µs)
SUPPLY VOLTAGE (V)
Enable Current Threshold
vs. Temperature
Enable Voltage Threshold
vs. Temperature
Output Impedance
1000
100
10
35
30
25
20
15
10
5
1.6
1.4
1.2
1
CIN = 2.2µF
COUT = 4.7µF
CIN = 2.2µF
COUT = 4.7µF
IL = 100µA
IL = 1mA
1
ON
VE N = 5V
0.1
0.8
0.6
0.4
OFF
0.01
0.001
VE N = 2V
IL = 100mA
0
-5
-60 -30
0
30 60 90 120 150
-60 -30
0
30 60 90 120 150
TEMPERATURE (°C)
TEMPERATURE (°C)
FREQUENCY (Hz)
April 2005
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M9999-040805
MIC5200
Micrel, Inc.
Ripple
vs. Frequency
Ripple
vs. Frequency
Ripple
vs. Frequency
100
100
80
60
40
20
0
100
80
60
40
20
0
80
60
40
20
0
IL = 100µA
IL = 1mA
IL = 100mA
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
M9999-040805
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April 2005
MIC5200
Micrel, Inc.
Applications Information
External Capacitors
Thermal Considerations
Part I. Layout
The MIC5200-xxBM (8-pin surface mount package) has the
following thermal characteristics when mounted on a single
layer copper-clad printed circuit board.
A1µFcapacitorisrecommendedbetweentheMIC5200output
and ground to prevent oscillations due to instability. Larger
values serve to improve the regulator’s transient response.
Most types of tantalum or aluminum electrolytics will be ad-
equate; film types will work, but are costly and therefore not
recommended.Manyaluminumelectrolyticshaveelectrolytes
that freeze at about –30°C, so solid tantalum capacitors are
recommended for operation below –25°C. The important pa-
rameters of the capacitor are an effective series resistance
of about 5Ω or less and a resonant frequency above 500kHz.
The value of this capacitor may be increased without limit.
PC Board
Dielectric
FR4
θJA
160°C/W
120°C/W
Ceramic
Multi-layer boards having a ground plane, wide traces near
the pads, and large supply bus lines provide better thermal
conductivity.
The“worstcase”valueof160°C/Wassumesnogroundplane,
minimum trace widths, and a FR4 material board.
At lower values of output current, less output capacitance is
required for output stability. The capacitor can be reduced to
0.47µF for current below 10mA or 0.33µF for currents below
1 mA. A 1µF capacitor should be placed from the MIC5200
input to ground if there is more than 10 inches of wire between
the input and the AC filter capacitor or if a battery is used as
the input.
Part II. Nominal Power Dissipation and Die Temperature
The MIC5200-xxBM at a 25°C ambient temperature will oper-
ate reliably at up to 625mW power dissipation when mounted
in the “worst case” manner described above. At an ambient
temperatureof55°C, thedevicemaysafelydissipate440mW.
These power levels are equivalent to a die temperature of
125°C, the recommended maximum temperature for non-
military grade silicon integrated circuits.
The MIC5200 will remain stable and in regulation with no load
in addition to the internal voltage divider, unlike many other
voltageregulators.ThisisespeciallyimportantinCMOSRAM
keep-alive applications.
For MIC5200-xxBS (SOT-223 package) heat sink character-
istics, please refer to Micrel Application Hint 17, “Calculating
P.C. Board Heat Sink Area for Surface Mount Packages”.
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.
50 mil
ENABLE Input
The MIC5200 features nearly zero OFF mode current. When
the ENABLE input is held below 0.7V, all internal circuitry is
powered off. Pulling this pin high (over 2.0V) re-enables the
deviceandallowsoperation.TheENABLEpinrequiresasmall
amount of current, typically 15µA. While the logic threshold is
TTL/CMOS compatible, ENABLE may be pulled as high as
30V, independent of the voltage on VIN.
150 mil
245 mil
30 mil
50 mil
Minimum recommended board pad size, SO-8.
April 2005
8
M9999-040805
MIC5200
Micrel, Inc.
Package Information
8-Pin SOIC (M)
0.122 (3.10)
0.112 (2.84)
0.199 (5.05)
0.187 (4.74)
DIMENSIONS:
INCH (MM)
0.120 (3.05)
0.116 (2.95)
0.036 (0.90)
0.032 (0.81)
0.043 (1.09)
0.038 (0.97)
0.007 (0.18)
0.005 (0.13)
0.012 (0.30) R
0.008 (0.20)
0.004 (0.10)
5 MAX
0 MIN
0.012 (0.3)
0.012 (0.03) R
0.039 (0.99)
0.0256 (0.65) TYP
0.035 (0.89)
0.021 (0.53)
8-Lead MSOP (MM)
M9999-040805
9
April 2005
MIC5200
Micrel, Inc.
3.15 (0.124)
2.90 (0.114)
C
L
7.49 (0.295)
6.71 (0.264)
3.71 (0.146)
3.30 (0.130)
C
L
2.41 (0.095)
2.21 (0.087)
1.04 (0.041)
0.85 (0.033)
4.7 (0.185)
4.5 (0.177)
DIMENSIONS:
MM (INCH)
1.70 (0.067)
16°
6.70 (0.264)
6.30 (0.248)
1.52 (0.060)
10°
0.10 (0.004)
0.38 (0.015)
10°
0.02 (0.0008)
0.25 (0.010)
MAX
0.84 (0.033)
0.64 (0.025)
0.91 (0.036) MIN
SOT-223 (S)
MICREL INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA
TEL + 1 (408) 944-0800 FAX + 1 (408) 474-1000 WEB http://www.micrel.com
This information furnished by Micrel in this data sheet is believed to be accurate and reliable. However no responsibility is assumed by Micrel for its use.
Micrel reserves the right to change circuitry and specifications at any time without notification to the customer.
Micrel Products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product can
reasonably be expected to result in personal injury. Life support devices or systems are devices or systems that (a) are intended for surgical implant into
the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significant injury to the user. A Purchaser's
use or sale of Micrel Products for use in life support appliances, devices or systems is a Purchaser's own risk and Purchaser agrees to fully indemnify
Micrel for any damages resulting from such use or sale.
© 1998 Micrel Incorporated
April 2005
10
M9999-040805
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