L7908CV STMicroelectronics, L7908CV Datasheet

IC REG NEG VOLT 8V TO-220

L7908CV

Manufacturer Part Number
L7908CV
Description
IC REG NEG VOLT 8V TO-220
Manufacturer
STMicroelectronics
Datasheets

Specifications of L7908CV

Regulator Topology
Negative Fixed
Voltage - Output
-8V
Voltage - Input
Down to -35V
Voltage - Dropout (typical)
1.1V @ 1A
Number Of Regulators
1
Current - Output
1.5A
Operating Temperature
0°C ~ 125°C
Mounting Type
Through Hole
Package / Case
TO-220-3 (Straight Leads)
Polarity
Negative
Number Of Outputs
1
Output Type
Fixed
Output Voltage
- 8 V
Output Current
0.5 A
Line Regulation
160 mV
Load Regulation
160 mV
Dropout Voltage (max)
1.1 V
Input Voltage Max
- 35 V
Maximum Operating Temperature
+ 150 C
Minimum Operating Temperature
0 C
Mounting Style
Through Hole
Primary Input Voltage
-14V
Output Voltage Fixed
-8V
Dropout Voltage Vdo
1.1V
No. Of Pins
3
Voltage Regulator Case Style
TO-220
Operating Temperature Range
0°C To +150°C
Rohs Compliant
Yes
Dc
9748
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Limit (min)
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
497-1474-5

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DESCRIPTION
The L7900 series of three-terminal negative
regulators is available in TO-220, TO-220FP,
TO-3 and D
output voltages, making it useful in a wide range of
applications. 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 L7800 positive standard series, they are
particularly suited for split power supplies. 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 voltages
and currents.
SCHEMATIC DIAGRAM
June 2004
OUTPUT CURRENT UP TO 1.5A
OUTPUT VOLTAGES OF -5; -6; -8; -12; -15;
-18; -20; -24V
THERMAL OVERLOAD PROTECTION
SHORT CIRCUIT PROTECTION
OUTPUT TRANSITION SOA PROTECTION
2
PAK packages and several fixed
NEGATIVE VOLTAGE REGULATORS
TO-220
D
2
PAK
Rev. 9
TO-220FP
SERIES
TO-3
L7900
1/17

Related parts for L7908CV

L7908CV Summary of contents

Page 1

OUTPUT CURRENT UP TO 1.5A OUTPUT VOLTAGES OF -5; -6; -8; -12; -15; -18; -20; -24V THERMAL OVERLOAD PROTECTION SHORT CIRCUIT PROTECTION OUTPUT TRANSITION SOA PROTECTION DESCRIPTION The L7900 series of three-terminal negative regulators is available in TO-220, TO-220FP, 2 ...

Page 2

L7900 SERIES Table 1: Absolute Maximum Ratings Symbol DC Input Voltage Output Current O P Power Dissipation tot T Storage Temperature Range stg T Operating Junction Temperature Range op Absolute Maximum Ratings are those values beyond which ...

Page 3

... Table 3: Ordering Codes TO-220 TO-220 TYPE (A Type) (C Type) L7905C L7905CV L7905C-V L7906C L7906CV L7908C L7908CV L7912C L7912CV L7912C-V L7915C L7915CV L7918C L7918CV L7920C L7920CV L7924C L7924CV (#) Available in Tape & Reel with the suffix "-TR". (*) Available on Request. Figure 2: Test Circuit Table 4: Electrical Characteristics Of L7905C (refer to the test circuits, T ...

Page 4

L7900 SERIES Table 5: Electrical Characteristics Of L7906C (refer to the test circuits 500 mA 2.2 µ Symbol Parameter V Output Voltage O V Output Voltage O V (*) Line Regulation ...

Page 5

Table 7: Electrical Characteristics Of L7912C (refer to the test circuits 500 mA 2.2 µ Symbol Parameter V Output Voltage O V Output Voltage O V (*) Line Regulation O V ...

Page 6

L7900 SERIES Table 9: Electrical Characteristics Of L7918C (refer to the test circuits 500 mA 2.2 µ Symbol Parameter V Output Voltage O V Output Voltage O V (*) Line Regulation ...

Page 7

Table 11: Electrical Characteristics Of L7924C (refer to the test circuits 500 mA 2.2 µ Symbol Parameter V Output Voltage O V Output Voltage O V (*) Line Regulation O V ...

Page 8

L7900 SERIES Figure 4: Split Power Supply (± 15V/1A) Against potential latch-up problems. Figure 5: Circuit for Increasing Output Voltage Optional for improved transient response and ripple rejection. Figure 6: High Current Negative Regulator (-5V/4A ...

Page 9

TO-3 MECHANICAL DATA DIM. MIN. A 11. 30.10 mm. TYP MAX. 1.05 1.10 0.037 1.70 8.7 20.0 10.9 16.9 26.2 4.09 0.152 39 L7900 SERIES ...

Page 10

L7900 SERIES TO-220 (A TYPE) MECHANICAL DATA DIM. MIN. A 4.40 b 0.61 b1 1.15 c 0.49 D 15.25 E 10.0 e 2.4 e1 4.95 F 1.23 H1 6.2 J1 2.40 L 13.0 L1 3.5 L20 L30 P 3.75 Q ...

Page 11

TO-220 (C TYPE) MECHANICAL DATA DIM. MIN. A 4.30 b 0.70 b1 1.42 c 0.45 D 15. 2.20 L 12.88 L1 L20 15.70 L30 P 3.50 Q 2.70 mm. TYP MAX. 4.70 ...

Page 12

L7900 SERIES DIM. MIN. A 4.40 B 2.5 D 2.5 E 0.45 F 0.75 F1 1.15 F2 1.15 G 4.95 G1 2 28.6 L4 9.8 L5 2 DIA. 3 12/17 TO-220FP MECHANICAL ...

Page 13

D PAK (A TYPE) MECHANICAL DATA DIM. MIN. A 4.4 A1 0.03 b 0.7 b2 1.14 c 0.45 c2 1. 2.49 L 2.29 L1 1.27 ...

Page 14

L7900 SERIES D DIM. MIN 0.70 b2 1.17 c 0.45 c2 1.25 D 9.0 D1 7.5 E 9 2.20 L 1.79 L1 1 0° ...

Page 15

Ta pe & Reel D PAK-P DIM. MIN 12 10.50 Bo 15.70 15.80 Ko 4.80 Po 3 PAK-D PAK/A-P PAK/A MECHANICAL DATA mm. TYP MAX. 180 ...

Page 16

L7900 SERIES Table 12: Revision History Date Revision 22-Jun-2004 9 16/17 Description of Changes Ordering Codes updated Table 3, pag. 3. ...

Page 17

... No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied ...

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