MIC5374/84
Triple 200mA µCap LDO and 1mA
RTC LDO in 2.5mm x 2.5mm Thin MLF
®
General Description
The MIC5374/84 is a four output device with three 200mA
LDOs and a real time clock (RTC) 1mA LDO which is ideal
for application processor support in mobile platforms. The
MIC5374 provides independent control active high enables
for each of the 200mA LDOs with an additional always-on
RTC LDO. The MIC5384 provides active low enables.
Both the MIC5374 and MIC5384 are available in the tiny
2.5mm x 2.5mm Thin MLF
®
package.
The MIC5374/84 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 MIC5374/84 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 MIC5374/84 operates with very small ceramic output
capacitors to reduce board space and component cost. It
is available in various fixed output voltages. The
MIC5374/84 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, 1mA LDO4
LDO4 – Ultra low 8µA I
BIAS
for RTC support
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
Typical MIC5374-xxxYMT Circuit
(Active High Enable)
MLF and
MicroLeadFrame
are registered trademarks of Amkor Technology, Inc.
Typical MIC5384-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
September 2012
M9999-091712
Micrel, Inc.
MIC5374/84
Ordering Information
Part Number
MIC5374-MG44YMT
MIC5374-SJG1YMT
MIC5384-MG44YMT
MIC5384-SJG1YMT
Note:
1.
2.
Other voltage options available. Contact Micrel for details.
Lead finish is NiPdAu. Mold compound material is halogen free.
Mark
Code
MG44
SJG1
Z1U
Z5U
Output Voltage
(1)
2.8V/1.8V/1.2/1.2V
3.3V/2.5V/1.8V/1.0V
2.8V/1.8V/1.2/1.2V
3.3V/2.5V/1.8V/1.0V
Junction
Temperature
Range
–40° to +125°C
–40° to +125°C
–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
16-Pin 2.5mm x 2.5mm Thin MLF
16-Pin 2.5mm x 2.5mm Thin MLF
Lead Finish
(2)
Pb-free
Pb-free
Pb-free
Pb-free
Pin Configuration
MIC5374
16-Pin 2.5mm x 2.5mm Thin MLF (MT)
(Top View)
MIC5384
16-Pin 2.5mm x 2.5mm Thin MLF (MT)
(Top View)
September 2012
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M9999-091712
Micrel, Inc.
MIC5374/84
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
OUT4
INLDO4
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 Capacitor. Connect capacitor to ground to set POR delay time.
Manual Reset Input. Manually resets output of POR and delay generator. Do not leave floating.
Regulator Output - LDO4.
Supply Input (LDO4). Ultra-low I
Q
RTC LDO. 1.7V to 5.5V input voltage range.
Supply Input (LDO3).
Regulator Output – LDO3.
Ground.
LDO3 Enable Input. EN (MIC5374): Active High Input. Logic High = On; Logic Low = Off;
/EN (MIC5384): Active Low Input. Logic High = Off; Logic Low = On. Do not leave floating.
LDO2 Enable Input. EN (MIC5374): Active High Input. Logic High = On; Logic Low = Off;
/EN (MIC5384): Active Low Input. Logic High = Off; Logic Low = On; Do not leave floating.
LDO1 Enable Input. EN (MIC5374): Active High Input. Logic High = On; Logic Low = Off;
/EN (MIC5384): Active Low Input. Logic High = Off; Logic Low = On; Do not leave floating.
Exposed Heat Sink Pad. Connect to GND.
September 2012
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M9999-091712
Micrel, Inc.
MIC5374/84
Absolute Maximum Ratings
(1)
Supply Voltage (V
INLDO1/2, INLDO3, INLDO4
) ............
−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, 10s)............................ 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, INLDO4
) ........ +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)
(MIC5374) 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);
(MIC5384) 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
= I
OUT4
= 100µA; C
OUT1
= C
OUT2
= C
OUT3
= C
OUT4
=1µF; T
A
= 25°C.
Bold
values indicate –40°C
≤
T
J
≤
+125°C, unless noted.
Parameter
Conditions
Min.
Typ.
Max.
Output Voltage Accuracy
(LDO1/2/3)
Output Voltage Accuracy
(LDO4 - RTC Support)
Line Regulation
Load Regulation
Variation from nominal V
OUT1, 2, 3
Variation from nominal V
OUT1, 2, 3
Variation from nominal V
OUT4
Variation from nominal V
OUT4
V
IN
= V
OUT
+1V to 5.5V; I
OUT
= 100µA
I
OUT
= 100µA to 150mA; LDO1/2/3
I
OUT
= 100µA to 1mA; LDO4
I
OUT
= 50mA; V
OUT
≥
2.8V
Dropout Voltage
I
OUT
= 150mA; V
OUT
≥
2.8V
I
OUT
= 50mA; V
OUT
< 2.8V
I
OUT
= 150mA; V
OUT
< 2.8V
Input Ground Current
Input Bias Current
Shutdown Input Ground Current
Shutdown Bias Current
Ripple Rejection
Current Limit
Notes:
1.
2.
3.
4.
5.
6.
Exceeding the absolute maximum rating may damage the device.
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.
Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5kΩ in series with 100pF.
The device is not guaranteed to function outside its operating rating.
For V
IN
range of 1.7V to 2.5V, output current is limited to 30mA.
Specification for packaged product only.
Units
%
%
%/V
%
−2.0
−3.0
−4.0
−5.0
0.02
0.3
0.05
60
170
85
275
10
3
42
106
0.04
8
55
200
2
350
12
+2.0
+3.0
+4.0
+5.0
0.3
1
1
115
330
145
450
20
8
70
170
2
13
700
50
mV
EN1 or EN2 or EN3 = ON; Not including I
BIAS
LDO4; EN1 = EN2 = EN3 = OFF; Not including I
BIAS
EN1 or EN2 or EN3 = ON; with LDO4 ON
EN1 = EN2 = EN3 = ON; with LDO4 ON
EN1 = EN2 = EN3 = OFF
EN1 = EN2 = EN3 = OFF; with LDO4 ON
f = 1kHz; C
OUT
= 1.0µF
V
OUT
= 0V; LDO1/2/3
V
OUT
= 0V; LDO4
µA
µA
µA
µA
dB
mA
September 2012
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M9999-091712
Micrel, Inc.
MIC5374/84
Electrical Characteristics
(6)
(Continued)
(MIC5374) 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);
(MIC5384) 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
= I
OUT4
= 100µA; C
OUT1
= C
OUT2
= C
OUT3
= C
OUT4
=1µF; T
A
= 25°C.
Bold
values indicate –40°C
≤
T
J
≤
+125°C, unless noted.
Parameter
Output Voltage Noise
Enable Input Voltage
Enable Input Current
Turn-On Time
V
POR
DLY Pin Current Source
DLY Pin Voltage Threshold
I
POR
V
TH
V
HYS
I
POR_IN
Thermal Shutdown
Thermal-Shutdown Hysteresis
POR Output Leakage Current, V
POR
OFF
POR Undervoltage Threshold
POR Voltage Threshold Hysteresis
POR Input Pin Leakage Current
0.873
Conditions
C
OUT
= 1µF,10Hz to 100kHz; I
OUT
= 150mA
(MIC5374) LDO OFF; (MIC5384) LDO ON
(MIC5374) LDO ON; (MIC5384) 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
0.9
34
1
155
10
0.927
1.2
0.01
0.01
80
200
0.2
2
1.38
Min.
Typ.
200
0.2
Max.
Units
µV
RMS
V
µA
µs
V
µA
V
µA
V
mV
µA
°C
°C
September 2012
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M9999-091712
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