SI9185DMP-28-T1 Vishay, SI9185DMP-28-T1 Datasheet

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SI9185DMP-28-T1

Manufacturer Part Number
SI9185DMP-28-T1
Description
IC, LDO VOLT REG, 2.8V, 0.5A, MLP33-8
Manufacturer
Vishay
Datasheet

Specifications of SI9185DMP-28-T1

Primary Input Voltage
6V
Output Voltage Fixed
2.8V
Dropout Voltage Vdo
250mV
No. Of Pins
8
Output Current
500mA
Operating Temperature Range
-40°C To +85°C
Termination Type
SMD
Number Of Outputs
1
Polarity
Positive
Input Voltage Max
6 V
Output Voltage
2.8 V
Output Type
Fixed
Dropout Voltage (max)
0.02 V at 10 mA
Line Regulation
0.18 % / V
Load Regulation
30 mV
Voltage Regulation Accuracy
1.5 %
Maximum Power Dissipation
2.5 W
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
MLP33-8
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
SI9185DMP-28-T1
Manufacturer:
vishay
Quantity:
1 380
Part Number:
SI9185DMP-28-T1
Manufacturer:
VISHAY/威世
Quantity:
20 000
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
LDO’s output noise for low noise applications. The Si9185 also
includes an out-of-regulation error flag. If a capacitor is
Document Number: 71765
S-51147—Rev. F, 20-Jun-05
FEATURES
D Input Voltage 2 V to 6 V
D Low 150-mV Dropout at 500-mA Load
D Guaranteed 500-mA Output Current
D Uses Low ESR Ceramic Output Capacitor
D Fast Load and Line Transient Response
D Only 100-mV(rms) Noise With Noise Bypass Capacitor
D 1-mA Maximum Shutdown Current
D Built-in Short Circuit and Thermal Protection
D Out-Of-Regulation Error Flag (Power Good or POR)
D Fixed 1.215-V, 1.8-V, 2.5-V, 2.8-V, 3.0-V, 3.3-V, 5.0-V,
TYPICAL APPLICATIONS CIRCUITS
GND
or Adjustable Output Voltage Options
V
IN
2.2 mF
FIGURE 1. Fixed Output
1
2
3
4
C
DELAY
GND
V
IN
NOISE
Micropower 500-mA CMOS LDO Regulator
Si9185
SENSE/ADJ
GND
V
IN
ERROR
2.2 mF
V
0.1 mF
With Error Flag/Power-On-Reset
OUT
SD
NOISE
8
7
6
5
FIGURE 3. Low Noise, Full Features Application
0.1 mF
pin will lower the
2.2 mF
V
OUT
1
2
3
4
C
DELAY
GND SENSE/ADJ
V
IN
NOISE
Available
Si9185
ERROR
V
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.
GND
OUT
D Other Output Voltages Available by Special Order
D 1.1-W Power Dissipation
D Thin, Thermally Enhanced MLP33 PowerPAKr
APPLICATIONS
D Laptop and Palm Computers
D Desktop Computers
D Cellular Phones
D PDA, Digital Still Cameras
SD
V
IN
2.2 mF
Package
8
7
6
5
2.2 mF
FIGURE 2. Adjustable Output
1
2
3
4
1 MW
C
DELAY
GND SENSE/ADJ
V
IN
NOISE
Si9185
ON/OFF
POR
V
OUT
ERROR
V
OUT
SD
Vishay Siliconix
8
7
6
5
Si9185
www.vishay.com
2.2 mF
V
OUT
1

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SI9185DMP-28-T1 Summary of contents

Page 1

... V OUT 2.2 mF 2.2 mF GND NOISE 2 7 DELAY ERROR 0 GND SENSE/ADJ OUT Si9185 FIGURE 3. Low Noise, Full Features Application Si9185 Vishay Siliconix NOISE 2 7 DELAY ERROR 3 6 GND SENSE/ADJ OUT 2.2 mF Si9185 FIGURE 2. Adjustable Output ON/OFF POR OUT 2.2 mF www.vishay.com V OUT ...

Page 2

... Si9185 Vishay Siliconix ABSOLUTE MAXIMUM RATINGS Input Voltage Input Voltage Output Current 500 mA Continuous, Short Circuit Protected OUT Output Voltage OUT Maximum Junction Temperature J(max) Storage Temperature STG ESD (Human Body Model 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 ...

Page 3

... OUT R F w/o C NOISE 0.1 mF OUT NOISE OUT High = Regulator ON (Rising) Low = Regulator OFF (Falling) Vishay Siliconix Limits −40 to 85_C Temp Min Typ Max Room 5 20 Room 145 215 Room 320 480 Full 600 Room 115 175 Room 250 ...

Page 4

... Si9185 Vishay Siliconix SPECIFICATIONS Parameter Symbol Input Current SD Input Current I IL Shutdown Hysteresis V HYST Error Output Output High Leakage I OFF g Output Low Voltage V OL Out-of-Regulation Error Flag Threshold Voltage (rising) g Hysteresis V HYST Delay Pin Current Source I DELAY Notes a. Room = 25_C, Full = −40 to 85_C. ...

Page 5

... The die substrate is attached to the exposed pad and must be electrically connected to GND. ORDERING INFORMATION Lead (Pb)-Free Part Number Marking Voltage Si9185DMP-12-T1—E3 8512 1.215 V Si9185DMP-18-T1—E3 8518 1.80 V Si9185DMP-25-T1—E3 8525 2.50 V Si9185DMP-28-T1—E3 8528 2.80 V Si9185DMP-30-T1—E3 8530 3.00 V Si9185DMP-33-T1—E3 8533 3.30 V Si9185DMP-50-T1—E3 8550 5.00 V Si9185DMP-AD-T1—E3 85AD Adjustable Temperature Range − ...

Page 6

... Si9185 Vishay Siliconix TYPICAL CHARACTERISTICS (INTERNALLY REGULATED, 25_C UNLESS NOTED) Dropout Voltage vs. Load Current 300 V = 3.0 V OUT 250 200 150 100 100 200 300 I (mA) LOAD Dropout Voltage vs. Temperature 300 250 V = 3.0 V OUT 200 150 100 50 0 −50 − Junction Temperature (_C) Normalized Output Voltage vs ...

Page 7

... Document Number: 71765 S-51147—Rev. F, 20-Jun-05 300 250 200 25_C 150 100 50 2500 2000 1500 1000 500 100000 1000000 Si9185 Vishay Siliconix No Load GND Pin Current vs. Input Voltage 85_C 25_C −40_C Input Voltage (V) GND Pin Current vs. Temperature and Load V OUT I = 500 mA ...

Page 8

... Si9185 Vishay Siliconix TYPICAL WAVEFORMS Load Transient Response-1 V OUT 10 mV/div I LOAD 100 mA/div 5.00 ms/div OUT 150 mA LOAD msec rise Load Transient Response-3 V OUT 10 mV/div I LOAD 100 mA/div 5.00 ms/div OUT 150 mA LOAD msec rise Load Transient Response-5 V OUT ...

Page 9

... NOISE I = 350 mA LOAD Output Noise 500 mV/div 1 ms/div 3.3 V OUT I = 150 mA OUT C = 0.1 mF NOISE MHz Document Number: 71765 S-51147—Rev. F, 20-Jun-05 Vishay Siliconix Line Transient Respons-2 V OUT 1 V/div V OUT 10 mV/div 5.00 ms/div V = 5.3 to 4.3 V INSTEP V = 3.3 V OUT C = 2.2 mF OUT 500 mA ...

Page 10

... Si9185 Vishay Siliconix BLOCK DIAGRAM SENSE GND DETAILED DESCRIPTION The Si9185 is a low drop out, low quiescent current, and very linear regulator family with very fast transient response primarily designed for battery powered applications where battery run time premium. The low quiescent current ...

Page 11

... The value of Rθ value of Rθ approximately 46 _C/W. Figure 6 shows the performance limits graphically for the Si9185 mounted on the circuit board used for thermal characterization. 0.6 0.5 0.4 0.3 (2) 0.2 0.1 0.0 0 Vishay Siliconix = (V – OUT OUT = T + ((P * (Rθ + Rθ )). A D ...

Page 12

... This allows for power dissipation in excess watt in an 80_C ambient environment. Vishay Siliconix maintains worldwide manufacturing capability. Products may be manufactured at one of several qualified locations. Reliability data for Silicon Technology and Package Reliability represent a composite of all qualified locations. http://www.vishay.com/ppg?71765. www.vishay.com 12 1 ...

Page 13

... Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any information provided herein to the maximum extent permitted by law. The product specifications do not expand or otherwise modify Vishay’ ...

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