MIC5317
High-Performance Single 150mA LDO
General Description
The MIC5317 is a high performance 150mA low dropout
regulator offering high power supply rejection (PSRR) in
an ultra-small 1mm × 1mm package for stringent space
requirements and demanding performance. The MIC5317
operates from an input voltage from 2.5V to 6.0V and is
capable of providing the output voltages of 1.0V to 3.6V
making it ideal for USB port or 6V AC adaptor applications.
The MIC5317 offers 2% initial accuracy, low dropout
voltage (155mV @ 150mA), and low ground current
(typically 29µA). The MIC5317 can also be put into a zero-
off-mode current state, drawing virtually no current when
disabled.
The MIC5317 is available in several advanced packages
including a lead-free (RoHS-compliant) 1mm × 1mm Thin
2
DFN occupying only 1mm of PCB area, a 75% reduction
in board area compared to SC-70 and 2mm × 2mm DFN
packages. It is also available in a SOT23-5 and TSOT23-5
package.
The MIC5317 has an operating junction temperature range
of –40°C to 125°C.
Datasheets and support documentation are available on
Micrel’s web site at:
www.micrel.com.
Features
•
Tiny 1mm × 1mm Thin DFN, SOT23-5 and
TSOT23-5 packages
•
•
•
•
•
•
•
•
Wide 2.5V to 6V operating range
150mA guaranteed output current
Stable with 1µF ceramic output capacitors
Low dropout voltage: 155mV @ 150mA
Excellent load/line transient response
Low quiescent current: 29µA
High PSRR: 70dB
Thermal-shutdown and current-limit protection
Applications
•
•
•
•
•
•
USB dongles
Wireless LANs
PC Desktops, laptops, and tablets
Battery-powered equipment
Digital still and video cameras
5V general purpose
Typical Application
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 •
http://www.micrel.com
August 23, 2013
Revision 1.0
Micrel, Inc.
MIC5317
Ordering Information
Part Number
MIC5317-1.0YMT
MIC5317-1.2YMT
MIC5317-1.5YMT
MIC5317-1.8YMT
MIC5317-2.5YMT
MIC5317-2.8YMT
MIC5317-3.0YMT
MIC5317-3.3YMT
MIC5317-1.0YM5
MIC5317-1.2YM5
MIC5317-1.5YM5
MIC5317-1.8YM5
MIC5317-2.5YM5
MIC5317-2.8YM5
MIC5317-3.0YM5
MIC5317-3.3YM5
MIC5317-1.0YD5
MIC5317-1.2YD5
MIC5317-1.5YD5
MIC53171.8YD5
MIC5317-2.5YD5
MIC5317-2.8YD5
MIC5317-3.0YD5
MIC5317-3.3YD5
Note:
1. Other voltages are available. Contact Micrel for details.
2. Thin DFN ▲ = Pin 1 identifier.
3. Thin DFN is a GREEN, RoHS-compliant package. Lead finish is NiPdAu. Mold compound is Halogen Free.
Marking
Code
71
72
73
74
76
77
78
79
1C7
147
1F7
1G7
1J7
1M7
1P7
1S7
1C7
147
1F7
1G7
1J7
1M7
1P7
1S7
Output
(1)
Voltage
1.0V
1.2V
1.5V
1.8V
2.5V
2.8V
3.0V
3.3V
1.0V
1.2V
1.5V
1.8V
2.5V
2.8V
3.0V
3.3V
1.0V
1.2V
1.5V
1.8V
2.5V
2.8V
3.0V
3.3V
Temperature Range
–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
–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
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
Packages
(2)
Lead Finish
Pb-Free
Pb-Free
Pb-Free
Pb-Free
Pb-Free
Pb-Free
Pb-Free
Pb-Free
Pb-Free
Pb-Free
Pb-Free
Pb-Free
Pb-Free
Pb-Free
Pb-Free
Pb-Free
Pb-Free
Pb-Free
Pb-Free
Pb-Free
Pb-Free
Pb-Free
Pb-Free
Pb-Free
(3)
4-Pin 1mm × 1mm Thin DFN
4-Pin 1mm × 1mm Thin DFN
4-Pin 1mm × 1mm Thin DFN
4-Pin 1mm × 1mm Thin DFN
4-Pin 1mm × 1mm Thin DFN
4-Pin 1mm × 1mm Thin DFN
4-Pin 1mm × 1mm Thin DFN
4-Pin 1mm × 1mm Thin DFN
5-Pin SOT23
5-Pin SOT23
5-Pin SOT23
5-Pin SOT23
5-Pin SOT23
5-Pin SOT23
5-Pin SOT23
5-Pin SOT23
5-Pin Thin SOT23
5-Pin Thin SOT23
5-Pin Thin SOT23
5-Pin Thin SOT23
5-Pin Thin SOT23
5-Pin Thin SOT23
5-Pin Thin SOT23
5-Pin Thin SOT23
August 23, 2013
2
Revision 1.0
Micrel, Inc.
MIC5317
Pin Configuration
4-Pin 1mm × 1mm Thin DFN (MT)
(Top View)
5-Pin SOT23 (D5) / TSOT23 (M5)
(Top View)
Pin Description
Pin
Number
1
1
2
3
4
4
5
EP
Pin Name
TDFN-4
VOUT
–
GND
EN
VIN
–
–
ePad
Pin Name
SOT23-5
–
VIN
GND
EN
–
NC
VOUT
NA
Pin Name
TSOT23-5
–
VIN
GND
EN
–
NC
VOUT
NA
Pin Function
Output Voltage.
Supply Input.
Ground.
Enable Input: Active High. High = ON; Low = OFF. Do not leave
floating.
Supply Input.
No connect. Not internally connected.
Output Voltage.
Exposed Heatsink Pad, connect to Ground.
August 23, 2013
3
Revision 1.0
Micrel, Inc.
MIC5317
Absolute Maximum Ratings
(4)
Supply Voltage (V
IN
) ............................................... 0V to 7V
Enable Voltage (V
EN
). ............................................. 0V to V
IN
(6)
Power Dissipation (P
D
) ........................... Internally Limited
Lead Temperature (soldering, 10sec) ........................ 260°C
Junction Temperature (T
J
) ........................ –40°C to +150°C
Storage Temperature (T
s
) ......................... –65°C to +150°C
(7)
ESD Rating .................................................................. 2kV
Operating Ratings
(5)
Supply Voltage (V
IN
) ............................................ 2.5V to 6V
Enable Voltage (V
EN
) .............................................. 0V to V
IN
Junction Temperature (T
J
) ........................ –40°C to +125°C
Junction Thermal Resistance
1mm × 1mm Thin DFN-4 (θ
JA
) ......................... 240°C/W
SOT23-5 (θ
JA
) .................................................. 253°C/W
TSOT23-5 (θ
JA
) ................................................ 253°C/W
Electrical Characteristics
(8)
V
IN
= V
EN
= V
OUT
+ 1V; C
IN
= C
OUT
= 1µF; I
OUT
= 100µA; T
J
= 25°C,
bold
values indicate –40°C to +125°C, unless noted.
Parameter
Output Voltage Accuracy
Line Regulation
Load Regulation
(9)
Condition
Variation from nominal V
OUT
Variation from nominal V
OUT
; –40°C to +125°C
V
IN
= V
OUT
+1V to 6V; I
OUT
= 100µA
I
OUT
= 100µA to 150mA
I
OUT
= 50mA; V
OUT
≥ 2.8V
I
OUT
= 150mA; V
OUT
≥ 2.8V
I
OUT
= 50mA; V
OUT
< 2.8V
I
OUT
= 150mA; V
OUT
< 2.8V
(11)
Min
–2.0
–3.0
Typ
Max
+2.0
+3.0
Units
%
%
mV
0.02
10
55
155
60
180
29
0.05
80
65
200
325
200
0.3
25
110
310
135
380
39
1
Dropout Voltage
(10)
mV
Ground Pin Current
I
OUT
= 0mA
V
EN
= 0V
f = up to 1kHz; C
OUT
= 1µF
f = 1kHz – 10kHz; C
OUT
= 1µF
V
OUT
= 0V
C
OUT
= 1µF, 10Hz to 100kHz
Logic Low
Logic High
V
IL
≤ 0.2V
V
IH
≥ 1.2V
C
OUT
= 1µF; I
OUT
= 150mA
1.2
µA
µA
dB
Ground Pin Current in
Shutdown
Ripple Rejection
Current Limit
Output Voltage Noise
Enable Input
Enable Input Voltage
Enable Input Current
Turn-on Time
Notes:
550
mA
µV
RMS
0.2
0.01
0.01
50
1
1
125
V
µA
µs
4. Exceeding the absolute maximum ratings may damage the device.
5. The device is not guaranteed to function outside its operating ratings.
6. The maximum allowable power dissipation of any TA (ambient temperature) is PD(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.
7. Devices are ESD sensitive. Handling precautions are recommended. Human body model, 1.5kΩ in series with 100pF.
8. Specification for packaged product only.
9. Regulation is measured at constant junction temperature using low duty cycle pulse testing, changes in output voltage due to heating effects are
covered by the thermal regulation specification
10. 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. For outputs below 2.5V, dropout voltage is the input-to-output differential with the minimum input voltage 2.5V.
11. 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.
August 23, 2013
4
Revision 1.0
Micrel, Inc.
MIC5317
Typical Characteristics
August 23, 2013
5
Revision 1.0
51单片机
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