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L7905ACD2T

Part # L7905ACD2T
Description IC REG LDO -5V 1.5A D2PAK
Category IC
Availability Out of Stock
Qty 0
Qty Price
1 + $1.71380

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Technical Document


DISCLAIMER: The information provided herein is solely for informational purposes. Customers must be aware of the suitability of this product for their application, and consider that variable factors such as Manufacturer, Product Category, Date Codes, Pictures and Descriptions may differ from available inventory.

L7900AC
SERIES
2% NEGATIVE VOLTAGE REGULATORS
November 1999
■ OUTPUT CURRENT UP TO 1.5 A
■ OUTPUT VOLTAGESOF -5; -5.2; -6; -8; -12;
-15;-18; -20; -22; -24V
■ THERMAL OVERLOADPROTECTION
■ SHORT CIRCUIT PROTECTION
■ OUTPUT TRANSITION SOA PROTECTION
DESCRIPTION
The L7900AC series of three-terminal negative
regulators is available in TO-220 and D
2
PAK
packages and several fixed output voltages.
These regulators can provide local on-card
regulation, eliminating the distribution problems
associated with single point regulation;
furthermore, having the same voltage option as
the L7800A positive standard series, they are
particularly suited for split power supplies. In
addition, the -5.2V is also available for ECL
system. If adequate heat sinking is provided,
they can deliver over 1.5A output current.
Although designed primarily as fixed voltage
regulators, these devices can be used with
external components to obtain adjustable
voltagesand currents.
TO-220
1
3
D
2
PAK
SCHEMATIC DIAGRAM
1/11
CONNECTION DIAGRAM AND ORDERING NUMBERS
(top view)
TO-220 D
2
PAK
THERMAL DATA
Symbol Parameter D
2
PAK TO-220 Unit
R
thj-case
R
thj-amb
Thermal Resistance Junction-case Max
Thermal Resistance Junction-ambient Max
3
62.5
3
50
o
C/W
o
C/W
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
i
DC Input Voltage (for V
O
= -5 to -18V)
(forV
O
= -20, -24V)
-35
-40
V
V
I
o
Output Current Internally limited
P
tot
Power Dissipation Internally limited
T
op
Operating Junction Temperature Range 0 to 125
o
C
T
stg
Storage Temperature Range - 65 to 150
o
C
Type TO-220 D
2
PAK (*) Output Voltage
L7905AC
L7952AC
L7906AC
L7908AC
L7912AC
L7915AC
L7918AC
L7920AC
L7922AC
L7924AC
L7905ACV
L7952ACV
L7906ACV
L7908ACV
L7912ACV
L7915ACV
L7918ACV
L7920ACV
L7922ACV
L7924ACV
L7905ACD2T
L7952ACD2T
L7906ACD2T
L7908ACD2T
L7912ACD2T
L7915ACD2T
L7918ACD2T
L7920ACD2T
L7922ACD2T
L7924ACD2T
-5V
-5.2V
-6V
-8V
-12V
-15V
-18V
-20V
-22V
-24V
(*) AVAILABLE IN TAPE AND REEL WITH ”-TR” SUFFIX
APPLICATION CIRCUIT
L7900AC
2/11
* Load and line regulation are specified at constant junction temperature. Changes in V
o
due to heating effects must be taken into account
separately. Pulce testing with low duty cycle is used.
ELECTRICAL CHARACTERISTICS FOR L7905A
(refer to the test circuits, T
j
= 0 to 125
o
C,
V
i
= -10V, I
o
= 500 mA, C
i
= 2.2 µF, C
o
=1µF unless otherwisespecified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
o
Output Voltage T
j
=25
o
C-4.9-5-5.1V
V
o
Output Voltage I
o
=-5mAto-1A P
o
≤15 W
V
i
= 8 to 20 V
-4.8 -5 -5.2 V
∆
V
o
* Line Regulation V
i
=-7to-25V T
j
=25
o
C
V
i
=-8to-12V T
j
=25
o
C
100
50
mV
mV
∆V
o
* Load Regulation I
o
= 5 to 1500 mA T
j
=25
o
C
I
o
= 250 to 750 mA T
j
=25
o
C
100
50
mV
mV
I
d
Quiescent Current T
j
=25
o
C3mA
∆I
d
Quiescent Current Change I
o
= 5 to 1000 mA 0.5 mA
∆I
d
Quiescent Current Change V
i
=-8to-25V 1.3 mA
∆
V
o
∆
T
Output VoltageDrift I
o
= 5 mA -0.4 mV/
o
C
e
N
Output Noise Voltage B = 10Hz to 100KHz T
j
=25
o
C100
µ
V
SVR Supply Voltage Rejection ∆V
i
=10 V f = 120Hz 54 60 dB
V
d
Dropout Voltage I
o
=1A T
j
=25
o
C
∆V
O
=100mV
1.4 V
I
sc
Short Circuit Current 2.1 A
I
scp
Short Circuit Peak Current T
j
=25
o
C2.5A
ELECTRICAL CHARACTERISTICS FOR L7952A (refer to the test circuits, T
j
= 0 to 125
o
C,
V
i
= -10V, I
o
= 500 mA, C
i
= 2.2 µF, C
o
=1µF unless otherwisespecified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
o
Output Voltage T
j
=25
o
C -5.1 -5.2 -5.3 V
V
o
Output Voltage I
o
=-5mAto-1A P
o
≤
15 W
V
i
=-9to-21V
-5 -5.2 -5.4 V
∆V
o
* Line Regulation V
i
=-8to-25V T
j
=25
o
C
V
i
=-9to-13V T
j
=25
o
C
105
52
mV
mV
∆
V
o
* Load Regulation I
o
= 5 to 1500 mA T
j
=25
o
C
I
o
= 250 to 750 mA T
j
=25
o
C
105
52
mV
mV
I
d
Quiescent Current T
j
=25
o
C3mA
∆I
d
Quiescent Current Change I
o
= 5 to 1000 mA 0.5 mA
∆
I
d
Quiescent Current Change V
i
=-9to-25V 1.3 mA
∆
V
o
∆
T
Output VoltageDrift I
o
= 5 mA -0.5 mV/
o
C
e
N
Output Noise Voltage B = 10Hz to 100KHz T
j
=25
o
C125µV
SVR Supply Voltage Rejection ∆V
i
=10 V f = 120Hz 54 60 dB
V
d
Dropout Voltage I
o
=1A T
j
=25
o
C
∆
V
O
=100mV
1.4 V
I
sc
Short Circuit Current 2.1 A
I
scp
Short Circuit Peak Current T
j
=25
o
C2.5A
L7900AC
3/11
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