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TJ3965 Schematic ( PDF Datasheet ) - HTC

Teilenummer TJ3965
Beschreibung Ultra Low Dropout Linear Regulator
Hersteller HTC
Logo HTC Logo 




Gesamt 9 Seiten
TJ3965 Datasheet, Funktion
www.DataSheet4U.com
1.5A Ultra Low Dropout Linear Regulator
TJ3965
FEATURES
Ultra Low Dropout Voltage
Low Ground Pin Current
Excellent Line and Load Regulation
Guaranteed Output Current of 1.5A
Available in SOT-223, MSOP8, SOP8, SOP8-PP,
TO-263, and TO-220 Packages
Fixed Output Voltages : 1.2V, 1.8V, 2.5V, 3.3V, and 5.0V
SENSE Option Improves Load Regulation
Over-Temperature/Over-Current Protection
-40to 125Junction Temperature Range
SOT-223 3L / 5LPKG
MSOP8 / SOP8 / SOP8-PP
TO-263 3L / 5LPKG
APPLICATION
TO-220 3L / 5L PKG
Battery Powered Equipments
Motherboards and Graphic Cards
Microprocessor Power Supplies
Peripheral Cards
High Efficiency Linear Regulators
Battery Chargers
DESCRIPSION
The TJ3965 series of high performance ultra low-dropout
linear regulators operates from 2.5V to 6V input supply
and provides ultra low-dropout voltage, high output
current with low ground current. Wide range of preset
output voltage options are available. These ultra low
dropout linear regulators respond fast to step changes in
load which makes them suitable for low voltage
µprocessor applications. The TJ3965 is developed on a
CMOS process technology which allows low quiescent
ORDERING INFORMATION
Device (Marking)
3965S-ADJ
3965S-X.X
TJ3965MD-ADJ
TJ3965MD-X.X
TJ3965D-ADJ
TJ3965D-X.X
TJ3965DP-ADJ
TJ3965DP-X.X
TJ3965R-ADJ
TJ3965R-X.X
TJ3965T-ADJ
TJ3965T-X.X
Package
SOT-223 3L/5L
MSOP8
SOP8
SOP8-PP
TO-263 3L/5L
TO-220 3L/5L
X.X = Output Voltage = 1.2, 1.8, 2.5, 3.3, and 5.0
current operation independent of output load current. This CMOS process also allows the TJ3965 to operate
under extremely low dropout conditions.
Absolute Maximum Ratings
CHARACTERISTIC
Input Supply Voltage (Survival)
Enable Input Voltage (Survival)
Maximum Output Current
Lead Temperature (Soldering, 5 sec)
Storage Temperature Range
Operating Junction Temperature Range
SYMBOL
VIN
VEN
IMAX
TSOL
TSTG
TJOPR
MIN.
-
-
-
-65
-40
MAX.
6.5
6.5
1.5
260
150
125
UNIT
V
V
A
Oct. 2006 – R1.2.1
1/9
HTC






TJ3965 Datasheet, Funktion
1.5A Ultra Low Dropout Linear Regulator
TJ3965
ELECTRICAL CHARACTERISTICS(Note 1)
Limits in standard typeface are for TJ=25 , and limits in boldface type apply over the full operating temperature range.
Unless otherwise specified: VIN(Note 2) = VO(NOM) + 1 V, IL = 10 mA, CIN = 68 uF, COUT = 33 uF, VEN = VIN - 0.3 V
PARAMETER
SYMBOL
TEST CONDITION
MIN.
TYP. MAX. UNIT
Output Voltage Tolerance
Adjustable Pin Voltage
(ADJ version)
Line Regulation(Note 3)
Load Regulation(Note 3, 4)
Dropout Voltage(Note 5)
VO
VADJ
VLINE
VLOAD
VDROP
Ground Pin Current(Note 6)
IGND1
Ground Pin Current(Note 7)
IGND2
Output Peak Current
IPEAK
Thermal Shutdown Temperature TSD
10 mA < IL < 1.5 A
VOUT+1 V < VIN < 6 V
10 mA < IL < 1.5 A
VOUT+1.5 V < VIN < 6 V
VOUT+1 V < VIN < 6 V
10 mA < IL < 1.5 A
IL = 150 mA
IL = 1.5 A
IL = 150 mA
IL = 1.5 A
VEN < 0.2 V
-2
-3
1.117
1.110
-
-
-
-
-
-
-
2.0
1.7
-
0
1.145
0.25
0.25
40
380
30
30
30
2.2
165
2
3
1.174
1.188
0.55
0.60
0.50
0.55
55
65
450
550
55
75
55
75
55
75
-
-
%
V
%/V
%
mV
uA
uA
A
Thermal Shutdown Hysteresis
TSD
- 10 -
Enable threshold
Logic Low VIL
Logic High VIH
Output = Low
Output = High
- 0 0.2 V
VIN-0.3
VIN
-
V
Enable Input Current
IEN VEN = VIN
- 5 20 nA
Note 1. Stresses listed as the absolute maximum ratings may cause permanent damage to the device. These are for stress ratings. Functional
operating of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not
implied. Exposure to absolute maximum rating conditions for extended periods may remain possibly to affect device reliability.
Note 2. The minimum operating value for input voltage is equal to either (VOUT,NOM + VDROP) or 2.5V, whichever is greater.
Note 3. Output voltage line regulation is defined as the change in output voltage from the nominal value due to change in the input line voltage.
Output voltage load regulation is defined as the change in output voltage from the nominal value due to change in load current.
Note 4. Regulation is measured at constant junction temperature by using a 20ms current pulse. Devices are tested for load regulation in the
load range from 10mA to 1.5A
Note 5. Dropout voltage is defined as the minimum input to output differential voltage at which the output drops 2% below the nominal value.
Dropout voltage specification applies only to output voltages of 2.5V and above. For output voltages below 2.5V, the dropout voltage is
nothing but the input to output differential, since the minimum input voltage is 2.5V
Note 6. Ground current, or quiescent current, is the difference between input and output currents. It's defined by IGND1 = IIN - IOUT under the
given loading condition. The total current drawn from the supply is the sum of the load current plus the ground pin current.
Note 7. Ground current, or standby current, is the input current drawn by a regulator when the output voltage is disabled by an enable signal.
Oct. 2006 – R1.2.1
6/9
HTC

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