GM6155 Datasheet, PDF (1/8 Pages) List of Unclassifed Manufacturers – 150mA LOW - NOISE LDO REGULATOR

GM6155
150mA LOW - NOISE LDO REGULATOR
Power Management
Description
The GM6155 is an efficient linear voltage regulator with
ultralow - noise output, very low dropout voltage (typically
17mV at light loads and 100mV at 50mA), and very low
ground current (600µA at 100mA output). The GM6155 pro-
vides better than 1% initial accuracy.
Designed especially for hand-held, battery-powered de-
vices, the GM6155 includes a CMOS or TTL compatible en-
able/ shutdown control input. When shutdown, power con-
sumption drops nearly to zero. Regulator ground current in-
creases only slightly in dropout, further prolonging battery
life. Key GM6155 features include a reference bypass pin
to improve its already excellent low-noise performance, re-
versed-battery protection, current limiting, and
overtemperature shutdown.
Features
Very low noise output
Extremely accurate output voltage
Guaranteed 150mA output
Low quiescent current
Low dropout voltage
Extremely tight load and line regulation
Very low temperature coefficient
Current and thermal limiting
Reverse-battery protection
"Zero" off-mode current
Logic-controlled electronic enable
The GM6155 is available in SOT-25 package.
Application
Cellular telephones
Laptop, notebook, and palmtop computers
Battery-powered equipment
PCMCIA V_CC and V_PP regulation/ switching
TYPICAL APPLICATION CIRCUITS
Consumer/ personal electronics
SMPS post-regulator/ dc-to-dc modules
High-efficiency linear power supplies
V_IN
1
5
2
Enable
Shutdown
3
4
EN
V_OUT
C_OUT = 2.2µF
(tantalum)
EN (pin 3) may be connected
directly to IN (pin1).
C_BYP
Low-Noise Operation:
C_BYP = 470pF, C_OUT 2.2µF
Basic Operation:
C_BYP = not used, C_OUT 1µF
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