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| SI9185 Datasheet, PDF (5/12 Pages) Vishay Siliconix – Micropower 500-mA CMOS LDO Regulator | |||
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PIN CONFIGURATION
MLP33 PowerPAK
CNOISE
1
DELAY
2
GND
3
VIN
4
8 SD
7 ERROR
6 SENSE or ADJ
5
VOUT
Top View
Si9185
Vishay Siliconix
MLP33 PowerPAK
SD
8
1
ERROR
7
2
SENSE or ADJ
6
3
VOUT
5
4
Bottom View
CNOISE
DELAY
GND
VIN
Exposed Pad
PIN DESCRIPTION
Pin Number
Name
1
CNOISE
2
DELAY
3
GND
4
VIN
5
VOUT
6
SENSE or ADJ
7
ERROR
8
SD
Exposed Pad
Function
Noise bypass pin. For low noise applications, a 0.01-mF or larger ceramic capacitor should be connected
from this pin to ground.
Capacitor connected from this pin to ground will allow a delayed power-on-reset signal at the ERROR (Pin
7) output. Refer to Figure 4.
Ground pin. Local ground for CNOISE and COUT.
Input supply pin. Bypass this pin with a 2.2-mF ceramic or tantalum capacitor to ground.
Output voltage. Connect COUT between this pin and ground.
For fixed output voltage versions, this pin should be connected to VOUT (Pin 5). For adjustable output
voltage version, this voltage feedback pin sets the output voltage via an external resistor divider.
This open drain output is an error flag output which goes low when VOUT drops 5% below its nominal
voltage. This pin also provides a power-on-reset signal if a capacitor is connected to the DELAY pin.
By applying less than 0.4 V to this pin, the device will be turned off. Connect this pin to VIN if unused.
The die substrate is attached to the exposed pad and must be electrically connected to GND.
Document Number: 71765
S-20641âRev. B, 06-May-02
ORDERING INFORMATION
Part Number Marking Voltage Temperature
Si9185DMP-12-T1
8512
1.215 V
Si9185DMP-15-T1
8515
1.50 V
Si9185DMP-18-T1
8518
1.80 V
Si9185DMP-20-T1
8520
2.00 V
Si9185DMP-25-T1
8525
2.50 V
Si9185DMP-28-T1
8528
2.80 V
Si9185DMP-29-T1
8529
2.90 V
Si9185DMP-30-T1
8530
3.00 V
Si9185DMP-33-T1
8533
3.30 V
Si9185DMP-50-T1
8550
5.00 V
Si9185DMP-AD-T1
85AD
Adjustable
Additional voltage options are available.
â40 to 85_C
Package
MLP33
PowerPAK
Eval Kit
Si9185DB
Temperature Range
â40 to 85_C
Board Type
Surface Mount
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