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SI9185DMP-50-T1-E3

P1-P3P4-P6P7-P9P10-P12P13-P13
Vishay Siliconix
Si9185
Document Number: 71765
S09-2454-Rev. G, 23-Nov-09
www.vishay.com
1
Micropower 500 mA CMOS LDO Regulator
with Error Flag/Power-On-Reset
FEATURES
• Input voltage 2 V to 6 V
• Low 150 mV dropout at 500 mA load
• Guaranteed 500 mA output current
• Uses low ESR ceramic output capacitor
• Fast load and line transient response
• Only 100 µV
RMS
noise with noise bypass capacitor
• 1 µA maximum shutdown current
• Built-in short circuit and thermal protection
• Out-of-regulation error flag (power good or POR)
• Fixed 1.215 V, 1.8 V, 2.5 V, 2.8 V, 3.0 V, 3.3 V, 5.0 V, or
adjustable output voltage options
• Other output voltages available by special order
• 1.1 W power dissipation
• Thin, thermally enhanced MLP33 PowerPAK
®
package
• Compliant to RoHS directive 2002/95/EC
APPLICATIONS
• Laptop and palm computers
• Desktop computers
• Cellular phones
• PDA, digital still cameras
DESCRIPTION
The Si9185 is a 500 mA CMOS LDO (low dropout) voltage
regulator. The device features ultra low ground current and
dropout voltage to prolong battery life in portable electronics.
The Si9185 offers line/load transient response and ripple
rejection superior to that of bipolar or BiCMOS LDO
regulators, and is designed to drive lower cost ceramic, as
well as tantalum, output capacitors. An external noise
bypass capacitor connected to the device’s C
NOISE
pin will
lower the LDO’s output noise for low noise applications. The
Si9185 also includes an out-of-regulation error flag. If a
capacitor is connected to the device’s delay pin, the error
flag output pin will generate a delayed power-on-reset
signal. The device is guaranteed stable from maximum load
current down to 0 mA load.
The Si9185 is available in both standard and lead (Pb)-free
MLP33 PowerPAK packages and is specified to operate
over the industrial temperature range of - 40 °C to 85 °C.
MLP33 PowerPAK packaging allows enhanced heat transfer
to the PC board.
TYPICAL APPLICATIONS CIRCUITS
* Pb containing terminations are not RoHS compliant, exemptions may apply.
Figure 1. Fixed Output
C
NOISE
SD
18
DELAY ERROR
27
GND SENSE/ADJ
36
V
IN
V
OUT
45
GND
V
IN
2.2 µF 2.2 µF
V
OUT
Si9185
Figure 2. Adjustable Output
C
NOISE
18
DELAY ERROR
27
GND SENSE/ADJ
36
V
IN
V
OUT
45
GND
V
IN
2.2 µF 2.2 µF
V
OUT
Si9185
SD
Figure 3. Low Noise, Full Features Application
C
NOISE
18
DELAY ERROR
27
GND SENSE/ADJ
36
V
IN
V
OUT
45
GND
V
IN
2.2 µF 2.2 µF
V
OUT
Si9185
POR
ON/OFF
0.1 µF
0.1 F
1 MΩ
SD
www.vishay.com
2
Document Number: 71765
S09-2454-Rev. G, 23-Nov-09
Vishay Siliconix
Si9185
Notes:
a. Device Mounted with all leads soldered or welded to PC board. (PC board - 2" x 2", 4-layer, FR4, 0.25 square inch spreading copper).
b. Derate 20 mW/°C above T
A
= 25 °C.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation
of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum
rating conditions for extended periods may affect device reliability.
Notes:
C
IN
= 2.2 µF, C
OUT
= 2.2 µF (ceramic, X5R or X7R type), C
NOISE
= 0.1 µF (ceramic)
C
OUT
Range = 1 µF to 10 µF (± 10 %, x5R or x7R type)
C
IN
≥ C
OUT
ABSOLUTE MAXIMUM RATINGS
Parameter Limit Unit
Input Voltage, V
IN
6.5
V
SD
Input Voltage, V
SD
- 0.3 to V
IN
Output Current, I
OUT
500 mA Continuous, Short Circuit Protected mA
Output Voltage, V
OUT
- 0.3 to V
O(nom)
+ 0.3
V
Maximum Junction Temperature, T
J(max)
150
°C
Storage Temperature, T
STG
- 55 to 150
ESD (Human Body Model) 2 kV
Power Dissipation
a
2.5 W
Thermal Resistance (Θ
JA
)
a
R
ΘJA
50
°C/W
R
ΘJC
4
RECOMMENDED OPERATING RANGE
Parameter Limit Unit
Input Voltage, V
IN
2 to 6
V
Output Voltage, V
OUT
(Adjustable Version)
1.215 to 5
R2 25 to 150 kΩ
Operating Ambient Temperature, T
A
- 40 to 85
°C
Operating Junction Temperature, T
J
- 40 to 125
SPECIFICATIONS
Parameter Symbol
Test Conditions
Unless Otherwise Specified
V
IN
= V
OUT(nom)
+ 1 V, I
OUT
= 1 mA,
C
IN
= 2.2 µF, C
OUT
= 2.2 µF, V
SD
= 1.5 V
Temp.
a
Limits
- 40 °C to 85 °C
Unit Min.
b
Typ.
c
Max.
b
Output Voltage Range
V
OUT
Adjustable Version Full 1.215 5 V
Output Voltage Accuracy
(Fixed Versions)
1 mA ≤ I
OUT
≤ 500 mA
Room - 1.5 1.5
% V
O(nom)
Full - 2.5 2.5
Feedback Voltage
(ADJ Version)
V
ADJ
Room 1.191 1.215 1.239
V
Full 1.179 1.251
Line Regulation
(V
ADJ
≤ V
OUT
≤ 4 V)
ΔV
OUT
x 100
V
IN
x V
OUT
From V
IN
= V
OUT
+ 1 V
to V
OUT
+ 2 V
Full - 0.18 0.18
%/V
Line Regulation
(4 V V
OUT
≤ 5 V)
From V
IN
= 5.5 V to 6 V
Full - 0.18 0.18
Dropout Voltage
d
(at V
OUT(nom)
≥ 2 V)
V
IN
- V
OUT
I
OUT
= 10 mA
Room 5 20
mV
I
OUT
= 200 mA
Room 145 215
I
OUT
= 500 mA
Room 320 480
Full 600
Dropout Voltage
d
(at V
OUT(nom)
≥ 2.5 V)
I
OUT
= 200 mA
Room 115 175
I
OUT
= 500 mA
Room 250 400
Full 480
Document Number: 71765
S09-2454-Rev. G, 23-Nov-09
www.vishay.com
3
Vishay Siliconix
Si9185
SPECIFICATIONS
Parameter Symbol
Test Conditions
Unless Otherwise Specified
V
IN
= V
OUT(nom)
+ 1 V, I
OUT
= 1 mA,
C
IN
= 2.2 µF, C
OUT
= 2.2 µF, V
SD
= 1.5 V
Temp.
a
Limits
- 40 °C to 85 °C
Unit Min.
b
Typ.
c
Max.
b
Dropout Voltage
d
(at V
OUT(nom)
≥ 3.3 V)
V
IN
- V
OUT
I
OUT
= 200 mA
Room 90 135
mV
I
OUT
= 500 mA
Room 200 300
Full 400
Dropout Voltage
d
(at V
OUT(nom)
≥ 5 V)
V
IN
- V
OUT
I
OUT
= 200 mA
Room 60 100
I
OUT
= 500 mA
Room 150 210
Full 300
Dropout Voltage
d
(at V
OUT(nom)
< 2 V, V
IN
≥ 2 V)
V
IN
- V
OUT
I
OUT
= 200 mA
Room 170 250
I
OUT
= 500 mA
Room 415 625
Full 825
Ground Pin Current
I
GND
I
OUT
= 0 mA
Room 150
µA
I
OUT
= 200 mA
Room 1000
Full 1500
I
OUT
= 500 mA
Room 2500
Full 4000
Shutdown Supply Current
I
IN(off)
V
SD
= 0 V
Room 0.1 1 µA
ADJ Pin Current
I
ADJ
ADJ = 1.2 V Room 5 100 nA
Peak Output current
I
O(peak)
V
OUT
≥ 0.95 x V
OUT(nom)
, t
pw
= 2 ms
Room 600 mA
Output Noise Voltage
e
N
BW = 50 Hz to 100 kHz
I
OUT
= 150 mA
w/o C
NOISE
Room 200
µV(rms)
C
NOISE
= 0.1 µF
Room 100
Ripple Rejection
ΔV
OUT
/ΔV
IN
I
OUT
= 150 mA
f = 1 kHz Room 60
dBf = 10 kHz Room 60
f = 100 kHz Room 40
Dynamic Line Regulation
ΔV
O(line)
V
IN
: V
OUT(nom)
+ 1 V to V
OUT(nom)
+ 2 V
t
R
/t
F
= 5 µs, I
OUT
= 500 mA
Room 10
mV
Dynamic Load Regulation
ΔV
O(load)
I
OUT
: 1 mA to 150 mA, t
R
/t
F
= 2 µs
Room 30
V
OUT
Tur n - O n T i m e t
ON
V
IN
= 4.3 V
V
OUT
= 3.3 V
w/o C
NOISE
Cap
Room 5 µs
C
NOISE
= 0.1 µF
Room 2 mS
Thermal Shutdown
Thermal Shutdown Junction
Temperature
t
J(s/d)
Room 165
°C
Thermal Hysteresis
t
HYST
Room 20
Short Circuit Current
I
SC
V
OUT
= 0 V
Room 800 mA
Shutdown Input
SD
Input Voltage
V
IH
High = Regulator On (Rising) Full 1.5
V
IN
V
V
IL
Low = Regulator Off (Falling) Full 0.4
SD
Input Current
e
I
IH
V
SD
= 0 V, Regulator OFF
Room 0.01
µA
I
IL
V
SD
= 6 V, Regulator ON
Room 1.0
Shutdown Hysteresis
V
HYST
Full 100 mV
P1-P3P4-P6P7-P9P10-P12P13-P13

SI9185DMP-50-T1-E3

Mfr. #:
Buy SI9185DMP-50-T1-E3
Manufacturer:
Vishay / Siliconix
Description:
LDO Voltage Regulators 500mA 5.0V CMOS w/Error Flag
Lifecycle:
New from this manufacturer.
Delivery:
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