MIC5373/83
Triple 200mA µCap
LDO in 2.5 x 2.5 Thin MLF
General Description
The MIC5373/83 is a triple output device with three 200mA
LDOs which is ideal for application processor support in
mobile platforms. The MIC5373 provides independent
control active high enables for each of the 200mA LDOs.
The MIC5383 provides active low enables. Both the
MIC5373 and MIC5383 are available in the tiny 2.5mm x
2.5mm Thin MLF
®
package.
The MIC5373/83 is designed for high input ripple rejection
(high PSRR) and provides low output noise making it ideal
for powering sensitive RF circuitry such as GPS, WiFi and
Bluetooth applications. The MIC5373/83 also incorporates
a power-on-reset (POR) supervisor with adjustable delay
time set by an external capacitor, and an independent
input pin to monitor any voltage level. Once high the POR
output can be asserted low again by enabling the manual
reset (MR) pin. When the MR pin is restored low the POR
output will re-time the delay set by the external delay
capacitor.
The MIC5373/83 operates with very small ceramic output
capacitors to reduce board space and component cost. It
is available in various fixed output voltages. The
MIC5373/83 has a junction temperature range from -40°C
to 125°C.
Datasheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
Features
•
•
•
•
•
1.7V to 5.5V input supply voltage range
Output current - 200mA LDO1/2/3
High output accuracy (±2%)
Independent enable pins
POR with user-defined voltage monitoring
- POR voltage input
- Adjustable delay time
- Manual reset pin
Low dropout voltage – 170mV at 150mA
High PSRR - 55dB at 1kHz on each LDO
Stable with tiny ceramic output capacitors
2.5mm x 2.5mm Thin MLF
®
16-pin package
Thermal shutdown and current limit protection
Mobile phones
GPS receivers
Application co-processors
PDAs and handheld devices
•
•
•
•
•
•
•
•
•
Applications
Typical Application
MIC5373
BIAS
0.1µF
MIC5383
OUT1
OUT2
1µF
BIAS
1µF
0.1µF
OUT1
OUT2
1µF
INLDO1/ 2
1µF
INLDO1/ 2
1µF
1µF
1µF
INLDO3
EN1
EN2
EN3
MR
OUT3
1µF
10k
V
BIAS
1µF
INLDO3
EN1
EN2
EN3
MR
OUT3
1µF
10k
V
BIAS
POR
POR_IN
DLY
GND
10k
10k
V
MONITOR
POR
POR_IN
DLY
GND
10k
10k
V
MONITOR
100k
150pF
100k
150pF
Typical MIC5373-xxxYMT Circuit
(Active High Enable)
MLF and
MicroLeadFrame
are registered trademarks of Amkor Technology, Inc.
Typical MIC5383-xxxYMT Circuit
(Active Low 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
July 2010
M9999-070110
Micrel, Inc.
MIC5373/83
Ordering Information
Part Number
MIC5373-MG4YMT
MIC5383-MG4YMT
Note:
1.
2.
Other voltage options available. Contact Micrel for details.
Lead finish is NiPdAu. Mold compound material is halogen free.
Mark Code
MG4
Z1T
Output Voltage
(1)
2.8V/1.8V/1.2V
2.8V/1.8V/1.2V
Junction Temp. Range
–40° to +125°C
–40° to +125°C
Package
16-Pin 2.5mm x 2.5mm Thin MLF
®
16-Pin 2.5mm x 2.5mm Thin MLF
®
Lead
Finish
Pb-free
Pb-free
Pin Configuration
MIC5373
®
16-Pin 2.5mm x 2.5mm Thin MLF (MT)
(Top View)
MIC5383
16-Pin 2.5mm x 2.5mm Thin MLF
®
(MT)
(Top View)
July 2010
2
M9999-070110
Micrel, Inc.
MIC5373/83
Pin Description
Pin Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
HS Pad
Pin Name
OUT1
INLDO1/2
OUT2
BIAS
POR_IN
POR
DLY
MR
NC
NC
INLDO3
OUT3
GND
EN3 or /EN3
EN2 or /EN2
EN1 or /EN1
EPAD
Pin Function
Regulator Output - LDO1.
Supply Input (LDO1/2).
Regulator Output – LDO2.
Internal Bias Supply Voltage. Must be de-coupled to ground with a 0.1µF capacitor.
Input to POR. Connect directly to output voltage or input voltage that is to be monitored for a 0.9V
reference, or connect a resistor divider network to this pin to program the POR monitoring voltage.
Power-on Reset Output. Open drain.
POR Delay. Connect capacitor to ground to set POR delay time.
Manual Reset Input. Manually resets output of POR and delay generator. Do not leave floating.
Not internally connected.
Not internally connected.
Supply Input (LDO3).
Regulator Output – LDO3.
Ground.
LDO3 Enable Input. EN (MIC5373): Active High Input. Logic High = On; Logic Low = Off;
/EN (MIC5383): Active Low Input. Logic High = Off; Logic Low = On; Do not leave floating.
LDO2 Enable Input. EN (MIC5373): Active High Input. Logic High = On; Logic Low = Off;
/EN (MIC5383): Active Low Input. Logic High = Off; Logic Low = On; Do not leave floating.
LDO1 Enable Input. EN (MIC5373): Active High Input. Logic High = On; Logic Low = Off;
/EN (MIC5383): Active Low Input. Logic High = Off; Logic Low = On; Do not leave floating.
Exposed Heat Sink Pad. Connect to GND.
July 2010
3
M9999-070110
Micrel, Inc.
MIC5373/83
Absolute Maximum Ratings
(1)
Supply Voltage (V
INLDO1/2, INLDO3
) ....................... -0.3V to +6V
Bias Supply Voltage (V
BIAS
).............................. -0.3V to +6V
Enable Input Voltage (V
EN1, EN2, EN3
).................. -0.3V to +6V
POR Output Voltage (POR) ............................. -0.3V to +6V
POR Input Voltage (POR_IN) .......................... -0.3V to +6V
MR Voltage (MR) ............................................. -0.3V to +6V
DLY Voltage (DLY)........................................... -0.3V to +6V
Power Dissipation .................................. Internally Limited
(2)
Lead Temperature (soldering, 10 sec)....................... 260°C
Storage Temperature (T
s
) .........................–60°C to +150°C
ESD Rating
(3)
................................................. ESD Sensitive
Operating Ratings
(4)
Supply Voltage
(5)
(V
INLDO1/2, INLDO3
) .................. +1.7V to V
BIAS
Bias Supply Voltage (V
BIAS
).......................... +2.5V to +5.5V
Enable Input Voltage (V
EN1, EN2, EN3
)..................... 0V to V
BIAS
POR Output Voltage (POR) .............................. 0V to +5.5V
POR Input Voltage (POR_IN) ............................. 0V to V
BIAS
MR Voltage (MR) ................................................ 0V to V
BIAS
DLY Voltage (DLY).............................................. 0V to V
BIAS
Junction Temperature (T
J
) ........................ –40°C to +125°C
Junction Thermal Resistance
2.5 x 2.5 Thin MLF
®
-16L (θ
JA
)..........................100°C/W
Electrical Characteristics
(6)
(MIC5373) V
IN
= V
OUT
+ 1V (V
OUT
is highest of the three regulator outputs); V
BIAS
= V
EN1
= V
EN2
= V
EN3
= 5.5V (ON);
(MIC5383) V
IN
= V
OUT
+ 1V (V
OUT
is highest of the three regulator outputs); V
BIAS
= 5.5V; V
/EN1
= V
/EN2
= V
/EN3
= GND (ON);
I
OUT1
= I
OUT2
= I
OUT3
= 100µA; C
OUT1
= C
OUT2
= C
OUT3
= 1µF; T
A
= 25°C,
Bold
values indicate –40°C
≤
T
J
≤
+125°C, unless
noted.
Parameter
Output Voltage Accuracy
Line Regulation
Load Regulation
Dropout Voltage
Conditions
Variation from nominal V
OUT1, 2, 3
Variation from nominal V
OUT1, 2, 3
V
IN
= V
OUT
+1V to 5.5V; 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
Input Ground Current
Bias Ground Current
Shutdown Ground Current
Shutdown Bias Current
Ripple Rejection
Current Limit
Output Voltage Noise
Enable Input Voltage
Enable Input Current
Turn-on Time
V
POR
DLY Pin Current Source
DLY Pin Voltage Threshold
I
POR
POR Output Leakage Current, V
POR
OFF
EN1 or EN2 or EN3 = ON; Not including I
BIAS
EN1 or EN2 or EN3 = ON;
EN1 = EN2 = EN3 = ON;
EN1 = EN2 = EN3 = OFF
EN1 = EN2 = EN3 = OFF
f = 1kHz; C
OUT
= 1.0µF;
V
OUT
= 0V
C
OUT
=1µF,10Hz to 100kHz; I
OUT
= 150mA
(MIC5373) LDO OFF; (MIC5383) LDO ON;
(MIC5373) LDO ON; (MIC5383) LDO OFF;
VIL < 0.2V
VIH > 1.2V
C
OUT
= 1µF
POR Output Low Voltage
V
DLY
= 0V
0.75
1.13
1.25
1.25
1
1.2
0.01
0.01
80
200
0.2
2
1.38
200
Min
-2.0
-3.0
0.02
0.3
60
170
85
275
10
32
103
0.04
0.02
55
350
200
0.2
700
Typ
Max
+2.0
+3.0
0.3
1
115
330
145
450
20
70
160
2
2
Units
%
%
%/V
%
mV
mV
mV
mV
µA
µA
µA
µA
µA
dB
mA
µV
RMS
V
V
µA
µA
µs
V
µA
V
µA
July 2010
4
M9999-070110
Micrel, Inc.
MIC5373/83
Electrical Characteristics (Continued)
Parameter
V
TH
V
HYS
I
POR_IN
Thermal Shutdown
Thermal Shutdown Hysteresis
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. 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.
3. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5kΩ in series with 100pF.
4. The device is not guaranteed to function outside its operating rating.
5. For V
IN
range of 1.7V to 2.5V, output current is limited to 30mA.
6. Specification for packaged product only.
Conditions
POR Under Voltage Threshold
POR Hysteresis
POR Input Pin Leakage Current
Min
0.873
Typ
0.9
34
1
155
10
Max
0.927
Units
V
mV
µA
°C
°C
July 2010
5
M9999-070110
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
