SI91821DH-18-T1-E3 Vishay, SI91821DH-18-T1-E3 Datasheet - Page 4

• Manufacturer Part Number: SI91821DH-18-T1-E3
• Description: IC,VOLT REGULATOR,FIXED,+1.8V,CMOS,TSSOP,8PIN,PLASTIC
• Manufacturer: Vishay

Specifications of SI91821DH-18-T1-E3

• Number Of Outputs: 1
• Polarity: Positive
• Input Voltage Max: 6 V
• Output Voltage: 1.8 V
• Output Type: Fixed
• Output Current: 300 mA
• Line Regulation: 10 mV
• Load Regulation: 30 mV
• Voltage Regulation Accuracy: 1.5 %
• Maximum Power Dissipation: 0.666 W
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: MSOP-8
• Minimum Operating Temperature: - 40 C
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Si91821
Vishay Siliconix
www.vishay.com
4
TIMING WAVEFORMS
PIN CONFIGURATION
PIN DESCRIPTION
Pin Number
1, 4
2
3
5
6
7
8
Name
ERROR
C
V
GND
SET
NOISE
V
SD
OUT
IN
Output voltage. Connect C
Input supply pin. Bypass this pin with a 2.2-mF ceramic or tantalum capacitor to ground.
Ground pin. Local ground for C
For fixed output voltage versions, this pin could be connected to GND. For adjustable output voltage version, this
voltage feedback pin sets the output voltage via an external resistor divider.
Noise bypass pin. For low noise applications, a 0.01-mF or larger ceramic capacitor should be connected from this pin
to ground.
By applying less than 0.4 V to this pin, the device will be turned off. Connect this pin to V
This open drain output is an error flag output which goes low when V
V
SD
ERROR
OUT
V
NOM =
V
v
GND
OUT
OUT
v
Figure 4.
IN
0.95 V
NOM
V
1
2
3
4
IH
OUT
Timing Diagram for Power-Up
between this pin and ground.
NOISE
MSOP-8
Top View
t
ON
t
DELAY
and C
OUT
.
8
7
6
5
Function
V
ERROR
SD
C
SET
IL
NOISE
t
DELAY
OUT
drops 5% below its nominal voltage.
IN
if unused.
S-51147–Rev. E, 20-Jun-05
Document Number: 71614