SI91871_05 Datasheet, PDF (4/10 Pages) Vishay Siliconix – 300-mA Ultra Low-Noise LDO Regulator With Discharge Option

Si91871
Vishay Siliconix
PIN CONFIGURATION
SD
1
BP
2
5
V_IN
3
V_OUT
4
Top View
MLP33-5 PowerPAK
GND
GND
5
GND
GND
1
2
3
4
Bottom View
PIN DESCRIPTION
Pin Number
Name
1
SD
2
BP
3
V_IN
4
V_OUT
5
GND
Function
By applying less than 0.4 V to this pin, the device will be turned off. Connect this pin to V_IN if unused
Noise bypass pin. For low noise applications, a 0.01 mF ceramic capacitor should be connected from this pin to ground.
Input supply pin. Bypass this pin with a 1-mF ceramic or tantalum capacitor to ground
Output voltage. Connect C_OUT between this pin and ground.
Ground pin. For better thermal capability, directly connected to large ground plane
Standard
Part Number
Si91871DMP-12-T1
Si91871DMP-18-T1
Si91871DMP-25-T1
Si91871DMP-26-T1
Si91871DMP-28-T1
Si91871DMP-30-T1
Si91871DMP-33-T1
Si91871DMP-50-T1
ORDERING INFORMATION
Lead (Pb)-Free
Part Number Marking Voltage
Si91871DMP-12-E3
7112
1.2
Si91871DMP-18-E3
7118
1.8
Si91871DMP-25-E3
7125
2.5
Si91871DMP-26-E3
7126
2.6
Si91871DMP-28-E3
7128
2.8
Si91871DMP-30-E3
7130
3.0
Si91871DMP-33-E3
7133
3.3
Si91871DMP-50-E3
7150
5.0
Temp.
Range
−40 to 85_C
Pkg.
MLP33-5
www.vishay.com
4
Document Number: 72012
S-51147—Rev. F, 20-Jun-05