This is information on a product in full production.
May 2012 Doc ID 2149 Rev 21 1/24
24
L79xxC
Negative voltage regulators
Datasheet production data
Features
Output current up to 1.5 A
Output voltages of - 5; - 8; - 12; - 15 V
Thermal overload protection
Short circuit protection
Output transition SOA protection
Description
The L79xxC series of three-terminal negative
regulators is available in TO-220, TO-220FP and
D²PAK packages and several fixed 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 L78xx positive standard series, they are
particularly suited for split power supplies. If
adequate heat sinking is provided, they can
deliver over 1.5 A output current. Although
designed primarily as fixed voltage regulators,
these devices can be used with external
components to obtain adjustable voltages and
currents.
TO-220FP
D²PAK
TO-220
Table 1. Device summary
Part numbers
Order codes
Output
voltages
TO-220 D²PAK TO-220FP
L7905C L7905CV L7905CV-DG
(1)
L7905CD2T-TR L7905CP - 5 V
L7908C L7908CV L7908CV-DG
(1)
- 8 V
L7912C L7912CV L7912CV-DG
(1)
L7912CD2T-TR L7912CP - 12 V
L7915C L7915CV L7915CV-DG
(1)
L7915CD2T-TR L7915CP - 15 V
1. TO-220 Dual Gauge frame.
www.st.com
Contents L79xxC
2/24 Doc ID 2149 Rev 21
Contents
1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4 Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
6 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
7 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
L79xxC Diagram
Doc ID 2149 Rev 21 3/24
1 Diagram
Figure 1. Schematic diagram

L7905C-D2TR

Mfr. #:
Manufacturer:
STMicroelectronics
Description:
IC REG LINEAR -5V 1.5A D2PAK
Lifecycle:
New from this manufacturer.
Delivery:
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Payment:
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