DESCRIPTION FEATURES APPLICATIONS. ORDERING INFORMATION (Temperature range: 0 C ~125 C)

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DESCRIPTION The AMS1085 is a positive low voltage dropout regulator, voltage dropout is only 1.18 at 3A. AMS1085 has two versions: the fixed version and the adjustable version.

1 DESCRIPTION The AMS1085 is a positive low voltage dropout regulator, voltage dropout is only 1.18 at 3A. AMS1085 has two versions: the fixed version and the adjustable version. OUT has a tolerance of less than 1% for fixed versions 1.5, 1.8, 2.5, 3.3, 5.0 and adjustable version. The AMS1085 integrates overheating protection and current limit circuits. It is an suitable for all electronic products. FEATURES * 1% accuracy for fixed output OUT while the voltage is 1.5, 1.8, 2.5, 3.3, 5.0 and the adjustable output OUT * Low Dropout oltage: 1.18 at 3A output current * Current Limiting: 4.5A *Load regulation : 0.1% typical (adjustable version) *Line regulation : 0.015% typical (adjustable version) * Temperature Range: 0 C to 125 C APPLICATIONS * High Efficiency Linear Regulators * SMPS Post-Regulator * Battery Charger * Microprocessor Supply *Desktop PCs, RISC and embedded processors'supply ORDERING INFORMATION (Temperature range: 0 C ~125 C)

2 AMS1085D-ADJ AMS1085CD AMS1085D-ADJTR AMS1085CD AMS1085D-1.5 AMS1085CD-1.5 AMS1085D-1.5TR AMS1085CD-1.5 AMS1085D-1.8 AMS1085CD-1.8 AMS1085D-1.8TR AMS1085CD-1.8 AMS1085D-2.5 AMS1085CD-2.5 AMS1085D-2.5TR AMS1085CD-2.5 AMS1085D-3.3 AMS1085CD-3.3 AMS1085D-3.3TR AMS1085CD-3.3 AMS1085D-5.0 AMS1085CD-5.0 AMS1085D-5.0TR TO-252-2L AMS1085CD-5.0 AMS1085S-ADJ AMS1085CM AMS1085S-ADJTR AMS1085CM AMS1085S-1.5 AMS1085CM-1.5 AMS1085S-1.5TR AMS1085CM-1.5 AMS1085S-1.8 AMS1085CM-1.8 AMS1085S-1.8TR AMS1085CM-1.8 AMS1085S-2.5 AMS1085CM-2.5 AMS1085S-2.5TR AMS1085CM-2.5 AMS1085S-3.3 AMS1085CM-3.3 AMS1085S-3.3TR AMS1085CMS-3.3 AMS1085S-5.0 AMS1085CM-5.0 AMS1085S-5.0TR TO-23-3L AMS1085CM-5.0 AMS1085T-ADJ AMS1085CT AMS1085T-1.5 AMS1085CT-1.5 AMS1085T-1.8 AMS1085CT-1.8 AMS1085T-2.5 AMS1085CT-2.5 AMS1085T-3.3 AMS1085CT-3.3 AMS1085T-5.0 TO-220-3L AMS1085CT-5.0 AMS1085S2-ADJ AMS1085CM AMS1085S2-ADJTR AMS1085CM AMS1085S2-1.5 AMS1085CM-1.5 AMS1085S2-1.5TR AMS1085CM-1.5 AMS1085S2-1.8 AMS1085CM-1.8 AMS1085S2-1.8TR AMS1085CM-1.8 AMS1085S2-2.5 TO-23-2L AMS1085CM-2.5

3 AMS1085S2-2.5TR AMS1085S2-3.3 AMS1085S2-3.3TR AMS1085S2-5.0 AMS1085S2-5.0TR TO-23-2L AMS1085CM-2.5 AMS1085CM-3.3 AMS1085CM-3.3 AMS1085CM-5.0 AMS1085CM-5.0 IN TSD Current limit Band gap F1 A F2 Fixed : F1 and F2 connect, disconnect A Adj : A connect, F1 and F2 disconnect O ADJ/GND IN 20 TLEAD 20 C TJ 150 C TS -5 ~ +150 PD mw ESD 2000 Note1: The maximum allowable power dissipation is a function of maximum operating junction temperature TJ (max), the junction to ambient thermal resistance θja, and the ambient temperature Tamb. The maximum allowable power dissipation at any ambient temperature is given: PD (max) = (TJ (max) - Tamb)/θJA, exceeding the maximum allowable power limit will result in excessive die temperature; thus, the regulator will go into thermal shutdown. The junction to ambient thermal resistance θja of different packages may be different, and the he value of θja depends on mounting technique.

4 IN 12 TJ 0 ~ +125 C ELECTRICAL CHARACTERISTICS (Tamb=25 C, unless otherwise specified. Limits appearing in Boldface type apply over the entire junction temperature range for operation, 0 C to 125 C. ) AMS1085-ADJ, REF IOUT=10mA, IN-OUT=3, 10mA IOUT 3A,1.5 IN-OUT AMS , IOUT=10mA, IN=4.5, 10mA IOUT 3A, 3.0 IN AMS , IOUT=10mA, IN=4.8, 10mA IOUT 3A, 3.3 IN AMS , OUT IOUT=10mA, IN=5.5 10mA IOUT 3A, 4.0 IN AMS , IOUT=10mA, IN=.3, 10mA IOUT 3A, 4.8 IN AMS , IOUT=10mA, IN=8, 10mA IOUT 3A,.5 IN AMS1085-ADJ, IOUT=10mA, 2.85 IN % AMS , IOUT=10mA, 3.0 IN m ΔOUT AMS , IOUT=10mA, 3.3 IN 10 AMS , IOUT=10mA, 4.0 IN m m AMS , IOUT=10mA, 4.8 IN m AMS , IOUT=10mA,.5 IN m

5 AMS1085-ADJ, 0mA IOUT 3A, IN-OUT= % AMS , 0mA IOUT 3A, 3 15 IN-OUT= m ΔOUT AMS , 0mA IOUT 3A 3 15 IN-OUT= m AMS , 0mA IOUT 3A, 3 15 IN-OUT= m AMS , 0mA IOUT 3A, 3 15 IN-OUT= m AMS , 0mA IOUT 3A, 5 20 IN-OUT= m DROP IOUT=3A, ΔREF, ΔOUT=1% ILIMIT IN-OUT=3 4.5 A ILOAD (MIN) IN=10 (AMS1085-ADJ) 3 10 ma IQ IN=10 (AMS1085) 5 10 ma PSRR fripple=120hz, COUT=25μF IOUT=3A, IN-OUT= db IADJ IN=4.25, IOUT=10mA μa ΔIADJ 10mA IOUT 3A, 1.5 (IN-OUT) μa IOUT=10mA, IN-OUT= % Tamb=125 C, 1000Hrs 0.5 % 10Hz f 10kHz % TO-23-3L 0 θja TO-23-2L 0 TO-220-3L 0 TO-252-2L 100 C/W

6 PIN DESCRIPTION Pin No. Pin name I/O Functions 1 GND/ADJ --/O Ground/ADJ 2 OUT O Output voltage 3 IN I Input supply voltage FUNCTION DESCRIPTION The AMS1085 is a LDO regulator, its pass transistor is made up of a single NPN transistor being driven by a PNP. The dropout voltage is defined as: DROP = BE+ SAT. The AMS1085 has two versions: the fixed output version and the adjustable output version. Output voltages can be 1.5, 1.8, 2.5, 3.3, and 5.0.On-chip thermal shut-down circuit provides protection against overload and overheating that would create excessive junction temperature. The adjustable output version requires a 22 μf or bigger tantalum capacitor at output for AMS1085 stability. The capacitor for fixed output version can be smaller and should be determined base on actual application. Generally, the stability of linear regulator stability decreases with output currents increase.

7 Note: The above circuit and parameters are reference only, please set the parameters of the real application circuit based on the real test.

9 .50± ± ± ± REF 1.50± ±0.10 0~ ± ± ± ± ± ± ±0.20 Φ3.835± ± ± ± ± ± ± ± ±0.10

10 1.27± ± ± ± ~ ± ± TYP 10.1±0.15

11 Disclaimer: AMS reserves the right to make changes to the information herein for the improvement of the design and performance without further notice! Customers should obtain the latest relevant information before placing orders and should verify that such information is complete and current. All semiconductor products malfunction or fail with some probability under special conditions. When using AMS products in system design or complete machine manufacturing, it is the responsibility of the buyer to comply with the safety standards strictly and take essential measures to avoid situations in which a malfunction or failure of such AMS products could cause loss of body injury or damage to property. AMS will supply the best possible product for customers!

XB1117 Series APPLICATIONS. FEATURES Maximum Output Current TYPICAL PERFORMANCE CHARACTERISTICS TYPICAL APPLICATION CIRCUIT

XB1117 Series APPLICATIONS. FEATURES Maximum Output Current TYPICAL PERFORMANCE CHARACTERISTICS TYPICAL APPLICATION CIRCUIT ETR0315_006 1A Low Dropout Positive oltage Regulator GENERAL DESCRIPTION The XB1117 series is 1A Bi-polar transistor LDO voltage regulator. Output voltage of the XB1117P series is fixed to 1.8, 2.5, 3.3,