HI-SINCERITY
MICROELECTRONICS CORP.
Spec. No. : Preliminary Data
Issued Date : 1998.06.01
Revised Date : 1999.08.01
Page No. : 1/5
H1085J Series
3A LOW DROPOUT POSITIVE VOLTAGE REGULATOR
Features
•
Low Dropout Voltage 1.2V at 3A
•
Adjustable or Fixed Voltage
•
Line Regulation Typically 0.015%
•
Load Regulation Typically 0.05%
•
Adjust Pin Current Less Than 90 uA
•
Over Current Protection
•
Thermal Protection
Applications
•
High Efficiency Linear Regulators
•
Post Regulators For Switching Supplies
•
5V to 3.3V Voltage Converter
•
Battery Charger
General Description
The H1085J is a 3A low-dropout positive voltage regulator. It is available in fixed and adjustable output voltage
versions. Over Current and thermal protection are integrated onto the chip. Output current will decrease while it
reaches the pre-set current or temperature limit. The dropout voltage is specified at 1.2V Maximum at full rated
output current. H1085U Series provides excellent regulation over variations due to changes in line, load and
temperature. H1085U is three terminal regulator and available in popular packages.
Device Selection Guide
Device
H1085J
H1085-3.3J
Vout Voltage
1.3V to 4V
3.3
Package
D-PAK
TO-252
Absolute Maximum Ratings
Parameter
Input Voltage
Power Dissipation
Thermal Resistance Junction To Case TO-252
Thermal Resistance Junction To Ambient TO-252
Operating Junction Temperature Range
Storage Temperature Range
Lead Temperature (Soldering) 10 Sec
Symbol
V
IN
P
D
θ
JC
θ
JA
T
j
T
STG
T
LEAD
Maximum
7
Internally Limited
15
156
0 To 125
-65 To 150
260
Units
V
W
°C/W
°C/W
°C
°C
°C
Typical Application
H1085-3.3J
+
4.75V to
5.25V
DC
10uF
TAN
10uF
TAN
Load
GND
HSMC Product Specification
HSMC [ HI-SINCERITY MOCROELECTRONICS ]
