MIC5335
Dual, High Performance
300mA µCap ULDO™
General Description
The MIC5335 is a high current density, dual Ultra Low
Dropout (ULDO™) linear regulator. The MIC5335 is
ideally suited for portable electronics which demand
overall high performance in a very small form factor.
The MIC5335 is offered in the ultra small 1.6mm x
®
1.6mm x 0.55mm 6-ld Thin MLF package, which is
only 2.56mm
2
in area. The MIC5335 delivers
exceptional
thermal
performance
for
those
applications that demand higher power dissipation in
a very small foot print. In addition, the MIC5335
integrates two high performance 300mA LDOs with
independent enable functions and offers high PSRR
eliminating the need for a bypass capacitor.
The MIC5335 is a µCap design which enables
operation with very small output capacitors for
stability, thereby reducing required board space and
component cost.
The MIC5335 is available in fixed-output voltages.
Additional voltages are available. For more
information, contact Micrel’s Marketing department.
Data sheets and support 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: 75mV at 300mA
•
Ultra Small 1.6mm x 1.6mm x 0.55mm 6 lead MLF
®
package
•
Independent enable pins
•
High PSRR > 65dB @ 1kHz
•
300mA output current per LDO
•
µCap Stable with 1µF ceramic capacitor
•
Low quiescent current: 90µA/LDO
•
Fast turn-on time: 30µs
•
Thermal Shutdown Protection
•
Current Limit Protection
Applications
•
•
•
•
•
•
Mobile Phones
PDAs
GPS Receivers
Portable electronics
Portable media players
Digital still and video cameras
Typical Application
ULDO is a trademark of Micrel, Inc.
MLF and
MicroLead
Frame are registered trademarks of Amkor Technologies.
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
May 2008
M9999-051508
Micrel, Inc.
MIC5335
MIC5335 Block Diagram
May 2008
2
M9999-051508
Micrel, Inc.
MIC5335
Ordering Information
Part number
MIC5335-1.8/1.5YMT
MIC5335-1.8/1.6YMT
MIC5335-1.8/1.8YMT
MIC5335-2.5/1.8YMT
MIC5335-2.5/2.5YMT
MIC5335-2.6/1.85YMT
MIC5335-2.6/1.8YMT
MIC5335-2.7/2.7YMT
MIC5335-2.8/1.5YMT
MIC5335-2.8/1.8YMT
MIC5335-2.8/2.6YMT
MIC5335-2.8/2.8YMT
MIC5335-2.85/1.85YMT
MIC5335-2.85/2.6YMT
MIC5335-2.85/2.85YMT
MIC5335-2.9/1.5YMT
MIC5335-2.9/1.8YMT
MIC5335-2.9/2.9YMT
MIC5335-3.0/1.8YMT
MIC5335-3.0/2.5YMT
MIC5335-3.0/2.6YMT
MIC5335-3.0/2.8YMT
MIC5335-3.0/2.85YMT
MIC5335-3.0/3.0YMT
MIC5335-3.3/1.5YMT
MIC5335-3.3/1.8YMT
MIC5335-3.3/2.5YMT
MIC5335-3.3/2.6YMT
MIC5335-3.3/2.7YMT
MIC5335-3.3/2.8YMT
MIC5335-3.3/2.85YMT
MIC5335-3.3/2.9YMT
MIC5335-3.3/3.0YMT
MIC5335-3.3/3.2YMT
MIC5335-3.3/3.3YMT
Note:
*
For other voltages available. Contact Micrel Marketing for details.
Manufacturing
Part Number
MIC5335-GFYMT
MIC5335-GWYMT
MIC5335-GGYMT
MIC5335-JGYMT
MIC5335-JJYMT
MIC5335-KDYMT
MIC5335-KGYMT
MIC5335-LLYMT
MIC5335-MFYMT
MIC5335-MGYMT
MIC5335-MKYMT
MIC5335-MMYMT
MIC5335-NDYMT
MIC5335-NKYMT
MIC5335-NNYMT
MIC5335-OFYMT
MIC5335-OGYMT
MIC5335-OOYMT
MIC5335-PGYMT
MIC5335-PJYMT
MIC5335-PKYMT
MIC5335-PMYMT
MIC5335-PNYMT
MIC5335-PPYMT
MIC5335-SFYMT
MIC5335-SGYMT
MIC5335-SJYMT
MIC5335-SKYMT
MIC5335-SLYMT
MIC5335-SMYMT
MIC5335-SNYMT
MIC5335-SOYMT
MIC5335-SPYMT
MIC5335-SRYMT
MIC5335-SSYMT
Marking
GPF
GPW
GPG
JPG
JPJ
KPD
KPG
LPL
MPF
MPG
MPK
MPM
NPD
NPK
NPN
OPF
OPG
OPO
PPG
PPJ
PPK
PPM
PPN
PPP
SPF
SPG
SPJ
SPK
SPL
SPM
SPN
SPO
SPP
SPR
SPS
Voltage*
1.8V/1.5V
1.8V/1.6V
1.8V/1.8V
2.5V/1.8V
2.5V/2.5V
2.6V/1.85
2.6V/1.8V
2.7V/2.7V
2.8V/1.5V
2.8V/1.8V
2.8V/2.6V
2.8V/2.8V
2.85V/1.85V
2.85V/2.6V
2.85V/2.85V
2.9V/1.5V
2.9V/1.8V
2.9V/2.9V
3.0V/1.8V
3.0V/2.5V
3.0V/2.6V
3.0V/2.8V
3.0V/2.85V
3.0V/3.0V
3.3V/1.5V
3.3V/1.8V
3.3V/2.5V
3.3V/2.6V
3.3V/2.7V
3.3V/2.8V
3.3V/2.85V
3.3V/2.9V
3.3V/3.0V
3.3V/3.2V
3.3V/3.3V
Junction
Temp. 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
–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
Package
6-Pin 1.6x1.6 Thin MLF
®
6-Pin 1.6x1.6 Thin MLF
®
6-Pin 1.6x1.6 Thin MLF
®
6-Pin 1.6x1.6 Thin MLF
®
6-Pin 1.6x1.6 Thin MLF
®
6-Pin 1.6x1.6 Thin MLF
®
6-Pin 1.6x1.6 Thin MLF
®
6-Pin 1.6x1.6 Thin MLF
®
6-Pin 1.6x1.6 Thin MLF
®
6-Pin 1.6x1.6 Thin MLF
®
6-Pin 1.6x1.6 Thin MLF
®
6-Pin 1.6x1.6 Thin MLF
®
6-Pin 1.6x1.6 Thin MLF
®
6-Pin 1.6x1.6 Thin MLF
®
6-Pin 1.6x1.6 Thin MLF
®
6-Pin 1.6x1.6 Thin MLF
®
6-Pin 1.6x1.6 Thin MLF
®
6-Pin 1.6x1.6 Thin MLF
®
6-Pin 1.6x1.6 Thin MLF
®
6-Pin 1.6x1.6 Thin MLF
®
6-Pin 1.6x1.6 Thin MLF
®
6-Pin 1.6x1.6 Thin MLF
®
6-Pin 1.6x1.6 Thin MLF
®
6-Pin 1.6x1.6 Thin MLF
®
6-Pin 1.6x1.6 Thin MLF
®
6-Pin 1.6x1.6 Thin MLF
®
6-Pin 1.6x1.6 Thin MLF
®
6-Pin 1.6x1.6 Thin MLF
®
6-Pin 1.6x1.6 Thin MLF
®
6-Pin 1.6x1.6 Thin MLF
®
6-Pin 1.6x1.6 Thin MLF
®
6-Pin 1.6x1.6 Thin MLF
®
6-Pin 1.6x1.6 Thin MLF
®
6-Pin 1.6x1.6 Thin MLF
®
6-Pin 1.6x1.6 Thin MLF
®
May 2008
3
M9999-051508
Micrel, Inc.
MIC5335
Pin Configuration
VIN
GND
EN2
1
2
3
6
5
4
VOUT1
VOUT2
EN1
6-pin 1.6mm × 1.6mm Thin MLF
Top View
®
Pin Description
Pin Number
Thin MLF-6
1
2
3
4
5
6
HS Pad
Pin Name
VIN
GND
EN2
EN1
VOUT2
VOUT1
EPAD
Pin Function
Supply Input.
Ground
Enable Input (regulator 2). Active High Input. Logic High = On; Logic Low = Off;
Do not leave floating.
Enable Input (regulator 1). Active High Input. Logic High = On; Logic Low = Off;
Do not leave floating.
Regulator Output – LDO2
Regulator Output – LDO1
Exposed heatsink pad connected to ground internally.
May 2008
4
M9999-051508
Micrel, Inc.
MIC5335
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 ...................260°C
Storage Temperature (T
S
) ................. -65°C to +150°C
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 ......................... -40°C to +125°C
Junction Thermal Resistance
Thin MLF
®
-6 (θ
JA
) ................................... 100°C/W
Electrical Characteristics
(5)
V
IN
= EN1 = EN2 = V
OUT
+ 1.0V; higher of the two regulator outputs, I
OUTLDO1
= I
OUTLDO2
= 100µA; C
OUT1
= C
OUT2
= 1µF;
T
J
= 25°C,
bold
values indicate –40°C
≤
T
J
≤
+125°C, unless noted.
Parameter
Output Voltage Accuracy
Line Regulation
Load Regulation
Dropout Voltage (Note
6)
Conditions
Variation from nominal V
OUT
Variation from nominal V
OUT
; –40°C to +125°C
V
IN
= V
OUT
+ 1V to 5.5V; I
OUT
= 100µA
I
OUT
= 100µA to 300mA
I
OUT
= 100µA
I
OUT
= 100mA
I
OUT
= 150mA
I
OUT
= 300mA
Ground Current
EN1 = High; EN2 = Low; I
OUT
= 100µA to 300mA
EN1 = Low; EN2 = High; I
OUT
= 100µA to 300mA
EN1 = EN2 = High; I
OUT1
= 300mA, I
OUT2
= 300mA
Ground Current in Shutdown
Ripple Rejection
Current Limit
Output Voltage Noise
Enable Inputs (EN1 / EN2)
Enable Input Voltage
Enable Input Current
Logic Low
Logic High
V
IL
≤
0.2V
V
IH
≥
1.0V
Turn-on Time (See Timing Diagram)
Turn-on Time (LDO1 and 2)
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
) /
θ
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.
Min
-2.0
-3.0
Typ
Max
+2.0
+3.0
Units
%
%
%/V
%/V
%
mV
mV
mV
mV
µA
µA
µA
µA
dB
0.02
0.3
0.1
25
35
75
90
90
150
0.01
65
45
340
550
90
0.3
0.6
2.0
75
100
200
125
125
220
2
EN1 = EN2 = 0V
f = 1kHz; C
OUT
= 1.0µF
f = 20kHz; C
OUT
= 1.0µF
V
OUT
= 0V
C
OUT
= 1.0µF; 10Hz to 100kHz
950
mA
µV
RMS
0.2
1.1
0.01
0.01
1
1
V
V
µA
µA
C
OUT
= 1.0µF
30
100
µs
May 2008
5
M9999-051508
嵌入式系统
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