The UM175xx series are VLDO (very low dropout) linear regulators designed for low power portable applications. Typical output noise is only 75μVRMS and maximum dropout is just 90mV at the load current of 150mA.The internal P-channel MOSFET pass transistor requires no base current, allowing the device to draw only 100μA during normal operation at the maximum.
include high output voltage accuracy, excellent transient response, under voltage lockout, stability with ultralow ESR ceramic capacitors as small as 1μF, reverse-battery protection,
short-circuit and thermal overload protection and output current limiting.
The UM175xx series are available in a low profile SOT23-5 package.
Applications
Bluetooth/802.11 Cards
PDAs and Notebook Computers
Portable Instruments and
Battery-Powered Systems
Cellular Phones
Features
Very Low Dropout: 90mV(max) at 150mA
Maximum Input Voltage: 6.0V
Low Noise:75μVRMS (10Hz to 100kHz)
±2%Voltage Accuracy.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | UM17513 |
Union Semiconductor |
VLDO Linear Regulator | |
2 | UM17515 |
Union Semiconductor |
VLDO Linear Regulator | |
3 | UM17518 |
Union Semiconductor |
VLDO Linear Regulator | |
4 | UM1750 |
Union Semiconductor |
Very Low Dropout Linear Regulator | |
5 | UM17525 |
Union Semiconductor |
VLDO Linear Regulator | |
6 | UM17527 |
Union Semiconductor |
VLDO Linear Regulator | |
7 | UM17528 |
Union Semiconductor |
VLDO Linear Regulator | |
8 | UM17530 |
Union Semiconductor |
VLDO Linear Regulator | |
9 | UM17533 |
Union Semiconductor |
VLDO Linear Regulator | |
10 | UM1770 |
Union Semiconductor |
VLDO Linear Regulator | |
11 | UM1000 |
UNIVERSAL MICROELECTRONICS |
3 Watt DC-DC Converters | |
12 | UM1000W-4 |
UNIVERSAL MICROELECTRONICS |
3 Watt DC/DC Converters |