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ISSUED DATE :2006/04/14 REVISED DATE :
G5U2189
Description
1 . 5 5 A C M O S L o w D r o p o u t Vo l t a g e R e g u l a t o r
The G5U2189 of positive, linear regulators feature low ground current (45 A typ.) with low dropout voltage, making them ideal for battery applications. Output voltages are set at the factory and trimmed to 1.5% accuracy. These rugged devices have both Thermal Shutdown, and Current Fold-back to prevent device failure under the “Worst” of operating conditions. The G5U2189 is stable with an output capacitance of 4.7 F or greater.
Features
Very Low Dropout Voltage Guaranteed 1.55A output Over-Temperature Shutdown Current Limiting Highly Accurate± 1.5% Low Temperature Coefficient Power-Saving Shutdown Mode Adjustable Version
Functional Block Diagram
Applications
Package Dimensions
Battery Powered Widgets Instrumentation Wireless Devices PC Peripherals Portable Electronics
REF. A b L4 c L1 E
Millimeter Min. Max. 4.40 4.80 0.66 0.91 0.00 0.30 B 0.36 0.5 2.29 2.79 9.80 10.4
REF. c2 L2 D e L
Millimeter Min. Max. 1.25 1.45 1.27 REF. 8.6 9.0 1.70 REF. 14.6 15.8 0˚ 8˚
Typical Application Circuit
G5U2189
Page: 1/7
ISSUED DATE :2006/04/14 REVISED DATE :
Absolute Maximum Ratings
Parameter
Input Max Voltage Output Current Output Voltage Operating Ambient Temperature Junction Temperature Maximum Junction Temperature Thermal Resistance Internal Power Dissipation( EDS Classification T=100 )
Symbol
VIN IOUT VOUT Topr Tj Tj Max jc PD
Ratings
8 PD/( VIN- VO) Gnd-0.3 to VIN+0.3 -40 ~ +85 -40 ~ +125 150 5 3.0 B
Unit
V A V
/W W
Electrical Characteristics VIN=VOUT(T)+2V, VEN=VIN, TA=25
Parameter Output Voltage Output Current Current Limit Load Regulation Dropout Voltage Ground Pin Current Line Regulation Input Voltage
Over Temperature Shutdown Over Temperature Hysterisis
unless otherwise Min
-1.5% 1.55 1.55 -1 2.0V 2.8V Note3 -
Symbol VOUT (E)
(Note1)
Condition
IO=1mA VOUT>1.2V VOUT>1.2V IO=1mA to 1.5A IO=1.55A VO=VOUT(E)-2% 2.0V