MIC5320
Dual, High Performance 150mA Cap ULDOTM
ULDO is a trademark of Micrel, Inc.
MLF and
Micro
LeadFrame are registered trademarks of Amkor Technologies, Inc.
Micrel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1 (408) 944-0800 fax + 1 (408) 474-1000 http://www.micrel.com
July 2006
M9999-073106
General Description
The MIC5320 is a tiny Dual Ultra Low-Dropout
(ULDOTM) linear regulator ideally suited for portable
electronics. It is ideal for general purpose/ digital
applications which require high power supply ripple
rejection (PSRR) >65dB, eliminating the need for a
bypass capacitor and providing two enable pins for
maximum flexibility. The MIC5320 integrates two high-
performance; 150mA ULDOs into a tiny 6-pin 1.6mm x
1.6mm leadless MLF
package, which provides
exceptional thermal package characteristics.
The MIC5320 is a Cap design which enables
operation with very small ceramic output capacitors
for stability, thereby reducing required board space
and component cost. The combination of extremely
low-drop-out voltage, high power supply rejection and
exceptional thermal package characteristics makes it
ideal for powering cellular phone camera modules,
imaging sensors for digital still cameras, PDAs, MP3
players and WebCam applications.
The MIC5320 ULDOTM is available in fixed-output
voltages in the tiny 6-pin 1.6mm x 1.6mm leadless
MLF
package which is only 2.56mm
2
in area, less
than 30% the area of the SOT-23, TSOP and MLF
3x3 packages. It's also available in the thin SOT-23-6
lead package. Additional voltage options are
available. For more information, contact Micrel
marketing department.
Data sheets and supporting documentation can be
found on Micrel's web site at www.micrel.com.
Features
2.3V to 5.5V input voltage range
Ultra-low dropout voltage ULDOTM 35mV @
150mA
Tiny 6-pin 1.6mm x 1.6mm MLF
leadless
package
Low cost TSOT-23-6 package
Independent enable pins
PSRR >65dB on each LDO
150mA output current per LDO
Cap stable with 1F ceramic capacitor
Low quiescent current 85A per output
Fast turn-on time 30s
Thermal shutdown protection
Current limit protection
Applications
Mobile
phones
PDAs
GPS
receivers
Portable
electronics
Portable media players
Digital still and video cameras
Typical Application
VIN
EN 2
VOUT 1
VOUT 2
GND
MIC5320-x.xYML
1F
EN 1
1F
Rx/Synth
Tx
RF
Transceiver
1F
RF Power Supply Circuit
Micrel, Inc.
MIC5320
July 2006
2
M9999-073106
Ordering Information
Part number
Manufacturing
Part Number
Voltage
Junction Temperature
Range
Package
MIC5320-1.8/1.5YML MIC5320-GFYML 1.8V/1.5V
40C to +125C
6-Pin 1.6x1.6 MLF
MIC5320-1.8/1.6YML MIC5320-GWYML
1.8V/1.6V
40C to +125C
6-Pin 1.6x1.6 MLF
MIC5320-2.5/1.8YML MIC5320-JGYML 2.5V/1.8V
40C to +125C
6-Pin 1.6x1.6 MLF
MIC5320-2.5/2.5YML MIC5320-JJYML 2.5V/2.5V
40C to +125C
6-Pin 1.6x1.6 MLF
MIC5320-2.6/1.85YML MIC5320-KDYML 2.6V/1.85
40C to +125C
6-Pin 1.6x1.6 MLF
MIC5320-2.6/1.8YML MIC5320-KGYML
2.6V/1.8V
40C to +125C
6-Pin 1.6x1.6 MLF
MIC5320-2.7/2.7YML MIC5320-LLYML 2.7V/2.7V
40C to +125C
6-Pin 1.6x1.6 MLF
MIC5320-2.8/1.5YML MIC5320-MFYML 2.8V/1.5V
40C to +125C
6-Pin 1.6x1.6 MLF
MIC5320-2.8/1.8YML MIC5320-MGYML 2.8V/1.8V
40C to +125C
6-Pin 1.6x1.6 MLF
MIC5320-2.8/2.6YML MIC5320-MKYML
2.8V/2.6V
40C to +125C
6-Pin 1.6x1.6 MLF
MIC5320-2.8/2.8YML MIC5320-MMYML 2.8V/2.8V
40C to +125C
6-Pin 1.6x1.6 MLF
MIC5320-2.8/2.85YML MIC5320-MNYML 2.8V/2.85V
40C to +125C
6-Pin 1.6x1.6 MLF
MIC5320-2.85/1.85YML MIC5320-NDYML 2.85V/1.85V
40C to +125C
6-Pin 1.6x1.6 MLF
MIC5320-2.85/2.6YML MIC5320-NKYML
2.85V/2.6V
40C to +125C
6-Pin 1.6x1.6 MLF
MIC5320-2.85/2.85YML MIC5320-NNYML 2.85V/2.85V
40C to +125C
6-Pin 1.6x1.6 MLF
MIC5320-2.9/1.5YML MIC5320-OFYML 2.9V/1.5V
40C to +125C
6-Pin 1.6x1.6 MLF
MIC5320-2.9/1.8YML MIC5320-OGYML 2.9V/1.8V
40C to +125C
6-Pin 1.6x1.6 MLF
MIC5320-2.9/2.9YML MIC5320-OOYML 2.9V/2.9V
40C to +125C
6-Pin 1.6x1.6 MLF
MIC5320-3.0/1.8YML MIC5320-PGYML
3.0V/1.8V
40C to +125C
6-Pin 1.6x1.6 MLF
MIC5320-3.0/2.5YML MIC5320-PJYML
3.0V/2.5V
40C to +125C
6-Pin 1.6x1.6 MLF
MIC5320-3.0/2.6YML MIC5320-PKYML 3.0V/2.6V
40C to +125C
6-Pin 1.6x1.6 MLF
MIC5320-3.0/2.8YML MIC5320-PMYML
3.0V/2.8V
40C to +125C
6-Pin 1.6x1.6 MLF
MIC5320-3.0/2.85YML MIC5320-PNYML 3.0V/2.85V
40C to +125C
6-Pin 1.6x1.6 MLF
MIC5320-3.0/3.0YML MIC5320-PPYML 3.0V/3.0V
40C to +125C
6-Pin 1.6x1.6 MLF
MIC5320-3.3/1.5YML MIC5320-SFYML
3.3V/1.5V
40C to +125C
6-Pin 1.6x1.6 MLF
MIC5320-3.3/1.8YML MIC5320-SGYML
3.3V/1.8V
40C to +125C
6-Pin 1.6x1.6 MLF
MIC5320-3.3/2.5YML MIC5320-SJYML
3.3V/2.5V
40C to +125C
6-Pin 1.6x1.6 MLF
MIC5320-3.3/2.6YML MIC5320-SKYML 3.3V/2.6V
40C to +125C
6-Pin 1.6x1.6 MLF
MIC5320-3.3/2.7YML MIC5320-SLYML 3.3V/2.7V
40C to +125C
6-Pin 1.6x1.6 MLF
MIC5320-3.3/2.8YML MIC5320-SMYML
3.3V/2.8V
40C to +125C
6-Pin 1.6x1.6 MLF
MIC5320-3.3/2.85YML MIC5320-SNYML 3.3V/2.85V
40C to +125C
6-Pin 1.6x1.6 MLF
MIC5320-3.3/2.9YML MIC5320-SOYML
3.3V/2.9V
40C to +125C
6-Pin 1.6x1.6 MLF
MIC5320-3.3/3.0YML MIC5320-SPYML 3.3V/3.0V
40C to +125C
6-Pin 1.6x1.6 MLF
MIC5320-3.3/3.2YML MIC5320-SRYML 3.3V/3.2V
40C to +125C
6-Pin 1.6x1.6 MLF
MIC5320-3.3/3.3YML MIC5320-SSYML 3.3V/3.3V
40C to +125C
6-Pin 1.6x1.6 MLF
MIC5320-1.8/1.5YD6 MIC5320-GFYD6 1.8V/1.5V
40C to +125C
6-Pin TSOT-23
MIC5320-1.8/1.6YD6 MIC5320-GWYD6 1.8V/1.6V
40C to +125C
6-Pin TSOT-23
MIC5320-2.5/1.8YD6 MIC5320-JGYD6 2.5V/1.8V
40C to +125C
6-Pin TSOT-23
MIC5320-2.5/2.5YD6 MIC5320-JJYD6 2.5V/2.5V
40C to +125C
6-Pin TSOT-23
MIC5320-2.6/1.85YD6 MIC5320-KDYD6 2.6V/1.85
40C to +125C
6-Pin TSOT-23
MIC5320-2.6/1.8YD6 MIC5320-KGYD6 2.6V/1.8V
40C to +125C
6-Pin TSOT-23
MIC5320-2.7/2.7YD6 MIC5320-LLYD6 2.7V/2.7V
40C to +125C
6-Pin TSOT-23
MIC5320-2.8/1.5YD6 MIC5320-MFYD6 2.8V/1.5V
40C to +125C
6-Pin TSOT-23
MIC5320-2.8/1.8YD6 MIC5320-MGYD6 2.8V/1.8V
40C to +125C
6-Pin TSOT-23
MIC5320-2.8/2.6YD6 MIC5320-MKYD6 2.8V/2.6V
40C to +125C
6-Pin TSOT-23
MIC5320-2.8/2.8YD6 MIC5320-MMYD6 2.8V/2.8V
40C to +125C
6-Pin TSOT-23
Micrel, Inc.
MIC5320
July 2006
3
M9999-073106
MIC5320-2.8/2.85YD6 MIC5320-MNYD6 2.8V/2.85V
40C to +125C
6-Pin TSOT-23
MIC5320-2.85/1.85YD6 MIC5320-NDYD6
2.85V/1.85V
40C to +125C
6-Pin TSOT-23
MIC5320-2.85/2.6YD6 MIC5320-NKYD6 2.85V/2.6V
40C to +125C
6-Pin TSOT-23
MIC5320-2.85/2.85YD6 MIC5320-NNYD6
2.85V/2.85V
40C to +125C
6-Pin TSOT-23
MIC5320-2.9/1.5YD6 MIC5320-OFYD6 2.9V/1.5V
40C to +125C
6-Pin TSOT-23
MIC5320-2.9/1.8YD6 MIC5320-OGYD6 2.9V/1.8V
40C to +125C
6-Pin TSOT-23
MIC5320-2.9/2.9YD6 MIC5320-OOYD6 2.9V/2.9V
40C to +125C
6-Pin TSOT-23
MIC5320-3.0/1.8YD6 MIC5320-PGYD6 3.0V/1.8V
40C to +125C
6-Pin TSOT-23
MIC5320-3.0/2.5YD6 MIC5320-PJYD6 3.0V/2.5V
40C to +125C
6-Pin TSOT-23
MIC5320-3.0/2.6YD6 MIC5320-PKYD6 3.0V/2.6V
40C to +125C
6-Pin TSOT-23
MIC5320-3.0/2.8YD6 MIC5320-PMYD6 3.0V/2.8V
40C to +125C
6-Pin TSOT-23
MIC5320-3.0/2.85YD6 MIC5320-PNYD6 3.0V/2.85V
40C to +125C
6-Pin TSOT-23
MIC5320-3.0/3.0YD6 MIC5320-PPYD6 3.0V/3.0V
40C to +125C
6-Pin TSOT-23
MIC5320-3.3/1.5YD6 MIC5320-SFYD6 3.3V/1.5V
40C to +125C
6-Pin TSOT-23
MIC5320-3.3/1.8YD6 MIC5320-SGYD6 3.3V/1.8V
40C to +125C
6-Pin TSOT-23
MIC5320-3.3/2.5YD6 MIC5320-SJYD6 3.3V/2.5V
40C to +125C
6-Pin TSOT-23
MIC5320-3.3/2.6YD6 MIC5320-SKYD6 3.3V/2.6V
40C to +125C
6-Pin TSOT-23
MIC5320-3.3/2.7YD6 MIC5320-SLYD6 3.3V/2.7V
40C to +125C
6-Pin TSOT-23
MIC5320-3.3/2.8YD6 MIC5320-SMYD6 3.3V/2.8V
40C to +125C
6-Pin TSOT-23
MIC5320-3.3/2.85YD6 MIC5320-SNYD6 3.3V/2.85V
40C to +125C
6-Pin TSOT-23
MIC5320-3.3/2.9YD6 MIC5320-SOYD6 3.3V/2.9V
40C to +125C
6-Pin TSOT-23
MIC5320-3.3/3.0YD6 MIC5320-SPYD6 3.3V/3.0V
40C to +125C
6-Pin TSOT-23
MIC5320-3.3/3.2YD6 MIC5320-SRYD6 3.3V/3.2V
40C to +125C
6-Pin TSOT-23
MIC5320-3.3/3.3YD6 MIC5320-SSYD6 3.3V/3.3V
40C to +125C
6-Pin TSOT-23
Note:
1. Other Voltages available. Contact Micrel for detail.
Micrel, Inc.
MIC5320
July 2006
4
M9999-073106
Pin Configuration
1
VIN
GND
EN2
6
VOUT1
VOUT2
EN1
5
4
2
3
VIN
GND
VOUT1
EN1
EN2
3
1
6
2
4
5
VOUT2
6-Pin 1.6mm x 1.6mm MLF (ML)
Top View
TSOT-23-6 (D6)
Top View
Pin Description
Pin Number
MLF-6
Pin Number
TSOT-23-6
Pin Name
Pin Function
1 3
VIN
Supply
Input.
2 2
GND
Ground
3 1
EN2
Enable Input (regulator 2). Active High Input. Logic High = On; Logic Low = Off;
Do not leave floating.
4 6
EN1
Enable Input (regulator 1). Active High Input. Logic High = On; Logic Low = Off;
Do not leave floating.
5
5
VOUT2
Regulator Output LDO2
6
4
VOUT1
Regulator Output LDO1
Micrel, Inc.
MIC5320
July 2006
5
M9999-073106
Absolute Maximum Ratings
(1)
Supply Voltage (V
IN
) .....................................0V to +6V
Enable Input Voltage (V
EN
)...........................0V to +6V
Power Dissipation..................... Internally Limited
(3)
Lead Temperature (soldering, 3sec) ..................260C
Storage Temperature (T
S
)................ 65C to +150C
ESD Rating
(4)
.........................................................2kV
Operating Ratings
(2)
Supply Voltage (V
IN
).............................. +2.3V to +5.5V
Enable Input Voltage (V
EN
).............................. 0V to V
IN
Junction Temperature (T
J
) ................. 40C to +125C
Junction Thermal Resistance
MLF-6
(
JA
).............................................. 100C/W
TSOT-6
(
JA
) ........................................... 235C/W
Electrical Characteristics
(5)
V
IN
= EN1 = EN2 = V
OUT
+ 1.0V; higher of the two regulator outputs, I
OUTLDO1
= I
OUTLDO2
= 100A; C
OUT1
= C
OUT2
= 1F;
T
J
= 25C, bold values indicate 40C T
J
+125C, unless noted.
Parameter Conditions
Min
Typ
Max
Units
Variation from nominal V
OUT
-2.0
+2.0
%
Output Voltage Accuracy
Variation from nominal V
OUT
; 40C to +125C
-3.0
+3.0
%
Line Regulation
V
IN
= V
OUT
+ 1V to 5.5V; I
OUT
= 100A
0.02
0.3
0.6
%/V
%/V
Load Regulation
I
OUT
= 100A to 150mA
0.5
2
%
Dropout Voltage
(6)
I
OUT
= 100A
I
OUT
= 50mA
I
OUT
= 100mA
I
OUT
= 150mA
0.1
12
25
35
50
75
100
mV
mV
mV
mV
Ground Current
EN1 = High; EN2 = Low; I
OUT
= 100A to 150mA
EN1 = Low; EN2 = High; I
OUT
= 100A to 150mA
EN1 = EN2 = High; I
OUT1
= 150mA, I
OUT2
= 150mA
85
85
150
120
120
190
A
A
A
Ground Current in Shutdown
EN1 = EN2 = 0V
0.01
2
A
Ripple Rejection
f = 1kHz; C
OUT
= 1.0F
f=20kHz; C
OUT
= 1.0F
65
45
dB
dB
Current Limit
V
OUT
= 0V
300
550
950
mA
Output Voltage Noise
C
OUT
= 1.0F; 10Hz to 100KHz
90
V
RMS
Enable Inputs (EN1 / EN2)
Logic Low
0.2
V
Enable Input Voltage
Logic High
1.1
V
V
IL
0.2V
0.01
1
A
Enable Input Current
V
IH
1.0V
0.01
1
A
Turn-on Time (See Timing Diagram)
Turn-on Time (LDO1 and 2)
C
OUT
= 1.0F
30
100
s
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. The device is not guaranteed to function outside its operating rating.
3. The maximum allowable power dissipation of any T
A
(ambient temperature) is P
D(max)
= T
J(max)
T
A
) /
JA
. Exceeding the maximum allowable
power dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown.
4. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF.
5. Specification for packaged product only.
6. Dropout voltage is defined as the input-to-output differential at which the output voltage drops 2% below its nominal V
OUT
. For
outputs below 2.3V,
the dropout voltage is the input-to-output differential with the minimum input voltage 2.3V.
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