SN7918PI Datasheet PDF - AUK

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SN7918PI
AUK

Part Number SN7918PI
Description 3 Terminal 1A Negative Voltage Regulator
Page 17 Pages


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Semiconductor
http:// www.auk.co.kr
TO-252-3L
SN79xxx
3 Terminal 1A Negative Voltage Regulator
Description
The SN79xxx series are three-terminal Negative regulators providing
over 1A output current with internal current limiting, thermal
shutdown and safe area protection. These regulators are useful in
a wide range of applications. Although they are just fixed voltage
regulators, the SN79xxx series can be used with external components to
obtain adjustable voltages and Currents.
Application
Consumer and personal electronics
SMPS post-regulator / dc-to-dc modules
High-efficiency linear power supplies
TO-220F-3L
ORDERING INFORMATION
Product
SN79xxD
SN79xxPI
Marking
SN79xxD
SN79xxPI
Package
TO-252-3L
TO-220F-3L
Features and Benefits
Output Current up to 1.0A
Output Voltage : -5, -6, -8, -9, -10, -12, -15, -18, -24V
Built in OVP, CLP circuit.
Built in TSD Protection.
Output Transistor Safe Area Protection.
Ultra High level of ESD [ Built in ESD Protection Cell ]
Equivalent Circuit
Marking Detail Information
[ TO-220F-3L & TO-253-3L PKG Marking ]
AUK()
GYWW ()
SN79xxx ()
AUK Logo
Grade & M Code & Year & Week Code
Device Code
Jan. 2011 REV. 02
KSD-I0O011-002
1



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Pin Configuration
SN79xxx
4
12
3
TO-252-3L
1: GND
2: VIN
3: VOUT
4: VIN
1
23
TO-220F-3L
1: GND
2: VIN
3: VOUT
Product Line-up
Product Name
SN7905D
SN7906D
SN7908D
SN7909D
SN7910D
SN7912D
SN7915D
SN7918D
SN7924D
SN7905PI
SN7906PI
SN7908PI
SN7909PI
SN7910PI
SN7912PI
SN7915PI
SN7918PI
SN7924PI
Jan. 2011 REV. 02
VOUT
-5.0V
-6.0V
-8.0V
-9.0V
-10V
-12V
-15V
-18V
-24V
-5.0V
-6.0V
-8.0V
-9.0V
-10V
-12V
-15V
-18V
-24V
Operating
Temperature
-40~125
-40~125
-40~125
-40~125
-40~125
-40~125
-40~125
-40~125
-40~125
-40~125
-40~125
-40~125
-40~125
-40~125
-40~125
-40~125
-40~125
-40~125
KSD-I0O011-002
Package
TO-252-3L
TO-252-3L
TO-252-3L
TO-252-3L
TO-252-3L
TO-252-3L
TO-252-3L
TO-252-3L
TO-252-3L
TO-220F-3L
TO-220F-3L
TO-220F-3L
TO-220F-3L
TO-220F-3L
TO-220F-3L
TO-220F-3L
TO-220F-3L
TO-220F-3L
2



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SN79xxx
Absolute Maximum Ratings ( Ta = 25)
Parameter
Symbol
Input Voltage
Power Dissipation
Thermal Resistance Junction to Case
Thermal Resistance Junction to Air
Junction Temperature
Operate Temperature Range
Storage Temperature Range
VIN
Pd
RΘJC
RΘJA
TJ
Topr
Tstg
Limits
TO-220F-3L TO-252-3L
-40.0 ( VO=24V )
-35.0 ( VO=5 to 18V )
2.0 1.3
55
65 92
150
-40 ~ +125
-55 ~ +150
Unit
V
W
°C/W
°C/W
°C
°C
°C
Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical
specifications do not apply when operating the device outside of its operating ratings. The maximum
allowable power dissipation is a function of the maximum junction temperature, TJ(max) ,
the junction-to-ambient thermal resistance, θJA, and the ambient temperature, TA.
The maximum allowable power dissipation at any ambient temperature is calculated using:
PD(max) = (TJ(max) – TA) ÷ θJA. Exceeding the maximum allowable power dissipation will result in
excessive die temperature, and the regulator will go into thermal shutdown.
Jan. 2011 REV. 02
KSD-I0O011-002
3



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SN79xxx
Electrical characteristics
( VIN=-10V, CIN = 2.2uF, COUT = 1.0uF, IOUT = 500mA, TJ=0~125; unless otherwise specified )
Characteristic
Symbol
Test Condition*
SN7905x
Min. Typ. Max.
Unit
Output Voltage**
Line Regulation
VO
ÌVO(VI)
TJ =25
-7.0V VIN -20.0V
5.0mA IO 1.0A, PD 15W
-7.0V VIN -25.0V
-8.0V VIN -12.0V
TJ =25
-4.80 -5.0 -5.20
-4.75 -5.0 -5.25
V
- 35 100
mV
- 8 50
Load Regulation
ÌVO(IL)
5.0mA IO 1.5A
250mA IO 750mA
TJ =25
- 10 100
mV
- 3.0 50
Quiescent Current
IQC TJ =25
- 3.0 6.0 mA
Quiescent Current Change
Ripple Rejection
Dropout Voltage
IQC
RR
VDROP
-8.0V VIN -25V
5.0mA IO 1.0A
-8.0V VIN -18.0V, IO=500
f=120Hz
IO=1.0A
TJ =25
- 0.1 1.3
mA
0.05 0.5
54 60 - dB
- 2.0 -
V
Output Noise Voltage
VN 10Hz f 100kHz
TA =25
- 100 - uV/ VO
Short Circuit Current
ISC VI =-35V
TA =25
- 300 - mA
Peak Output Current
IPK TJ =25
- 2.2 -
A
Temperature coefficient of
Output voltage
VO/
Temp
IO=5.0mA
- -0.4 - mV/°C
* Pulse testing techniques are used to maintain the junction temperature as close to the ambient
temperature as possible. Thermal effects must be taken into separately.
** This specification applies only for dc power dissipation permitted by absolute maximum ratings.
Jan. 2011 REV. 02
KSD-I0O011-002
4



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SN7918PI 3 Terminal 1A Negative Voltage Regulator SN7918PI
AUK
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