www.addmtek.com
Copyright © 2006 ADDtek Corp. 1 DD062_D -- JUNE 2006
AMC79L05
100mA / 3-TERMINAL
NEGATIVE VOLTAGE REGULATOR
DESCRIPTION FEATURES
The AMC79L05 is a 3-terminal fixed
negative-voltage designed for a wide range of
applications. This regulator can provide local on card
regulation, eliminating the distribution problems
associated with single point regu lation. In addition, it can
be used with power-pass elements to make high-current
voltage regulators with 100mA output current.
Protection features such as thermal shutdown and
current limiting have been designed internally which will
protect the device from damage in case of overload or
overheating.
±5% tolerance of output voltage
Wide input range
Internal thermal overload protection
Output current > 100mA
No External Components
Short circuit protection
Available in 3L plastic TO-92 and plastic 8 pin
S.O.I.C.
Identical pin assignment to earlier 79L05 series.
APPLICATIONS PACKAGE PIN OUT
3-Pin Plastic TO-92
(Top View)
Logic Systems
Computer Add-On Cards
Modem Cards
Power Suppliers
8-Pin S.O.I.C
Surface Mount
(Top View)
ORDER INFORMATION
Plastic TO-92 Plastic SO-8
TA (OC) LP 3-pin DM 8-pin
0 to 70 AMC79L0 5L P AMC79L0 5DM
0 to 70 AMC79L05LP(Lead Free) AMC79L05DM(Lead Free)
Note: 1.All surface-mount and TO-92 packages are available in Tape & Reel. Append the letter “T” to part number (i.e. AMC79L05LPT or
AMC79L05DMT).
2.For TO-92 in Tape & Box (without reel), add suffix “TB” (i.e. AMC79L05LPTB).
3.The letter ”F” is marked for Lead Free process.
OUTPUT
INPUT
COMMON
OUTPUT
INPUT
INPUT
NC
NC
INPUT
INPUT
COMMON
AMC79L05
Copyright © 2006 ADDtek Corp. 2 DD062_D -- JUNE 2006
ABSOLUTE MAXIMUM RATING S (Note 1)
Input Voltage -30V
Operating free-air temperature range, TA 0OC to 70 OC
Storage temperature range -65OC to 150OC
Lead temperature (soldiering, 10 seconds) 260 OC
Note 1: Exceeding these ratings could cause damage to the device. All voltages are with respect to Ground. Currents are positive into, negative
out of the specified terminal.
THERMAL DATA
LP PACKAGE:
Thermal Resistance-Junction to Ambient, θJA 156 OC/W
DM PACKAGE:
Thermal Resistance-Junction to Ambient, θJA 165 OC/W
Junction Temperature Calculation: TJ = TA + (PD × θJA).
The θJA numbers are guidelines for the thermal performance of the device/pc-board system.
All of the above assume no ambient airflow.
AMC79L05
Copyright © 2006 ADDtek Corp. 3 DD062_D -- JUNE 2006
RECOMMENDED OPER ATIN G CONDITIONS
Recommended Operating Conditions
Parameter Symbol Min. Typ. Max. Units
Input Voltage VI -7 -20 V
Output Current IOUT 100 mA
Operating Virtual Junction Temperature TJ 0 125
OC
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, these specifications in bold type apply over the operating temperature range of
0OC ≤ TJ ≤ +150OC, VIN = -10V,IOUT = 40mA,CIN = 0.33µF, COUT= 0.1µF, and are for DC char acteris tics only. (Low
duty cycle pulse testing techniques are used which maintains junction and case temperatures equal to the ambient
temperature.)
AMC79L05
Parameter Symbol Test Conditions Min. Typ. Max. Units
TJ = 25 OC -4.8 -5.0 -5.2
-7V ≤ VIN ≤ -20V, 1mA ≤ IOUT ≤ 40mA -4.75 -5.25
Output Vol t a ge VOUT
1mA ≤ IOUT ≤ 70mA -4.75 -5.25
V
-7V ≤ VIN ≤ -20V,TJ = 25 OC 15 150
Line Regulation VOI -8V ≤ VIN ≤ -20V,TJ = 25 OC 100 mV
1mA ≤ IOUT ≤ 100mA, TJ = 25 OC 20 60
Load Regulation VOL 1mA ≤ IOUT ≤ 40mA, TJ = 25 OC 10 30 mV
Peak Output Current IPEAK T
J = 25 OC 140 mA
Dropout Voltage TJ = 25 OC 1.7 V
TJ = 25 OC 6.6
Quiescent Current IQ TJ = 125 OC 6.0 mA
-8V ≤ VIN ≤ -20V 1.5
Quiescent Current Chang e IQ 1mA ≤ IOUT ≤ 40mA 0.1 mA
Ripple Rejection ( note 2 ) RR f =120Hz, -8V ≤ VIN ≤ -18V, TJ = 25 OC41 49 dB
Output Noise Voltage ( note 2 ) VO RMS 10Hz ≤ f ≤ 100KHz , TJ = 25 OC 40 µV
Note 2: These parameters, although guaranteed, are not 100% tested in production prior to shipment
AMC79L05
Copyright © 2006 ADDtek Corp. 4 DD062_D -- JUNE 2006
Note: For TO-92 in tape & reel, refer to TO-92 package and carrier dimension data for
lead dimensions.
PACKAGE
3-Pin Plastic TO-92
INCHES MILLIMETERS
MIN TYP MAX MIN TYP MAX
A 0.175 0.180 0.205 4.45 4.57 5.21
B 0.170 0.180 0.210 4.32 4.57 5.33
C 0.125 0.142 0.165 3.18 3.62 4.19
F - 0.015 - - 0.38 -
G - 0.050 - - 1.27 -
J - 0.150 - - 3.81 -
K 0.500 0.580 - 12.70 14.73 -
M - 5º - - 5º -
N - 5º - - 5º -
A
BK
FG
N
C
M
3-Pin Plastic TO-92 Package (Taped and Reeled) and Carrier Dimensions
INCHES MILLIMETERS
MIN TYP MAX MIN TYP MAX
C 0.079 - - 2.00 - -
P 0.480 0.500 0.520 12.2 12.7 13.2
Po 0.488 0.500 0.512 12.4 12.7 13.0
Do 0.150 0.157 0.165 3.8 4.0 4.2
P1 0.230 0.250 0.256 5.85 6.35 6.85
Fo 0.165 0.197 0.220 4.2 5.0 5.6
W 0.669 0.709 0.748 17.0 18.0 19.0
Ho 0.610 0.630 0.649 15.5 16.0 16.5
Wo 0.224 0.236 0.248 5.7 6.0 6.3
W1 0.335 0.354 0.374 8.5 9.0 9.5
Po
C
F1
Fo
Do
Wo
W1
P1 P
Ho
W
Note: For 3L TO92, 2,000 units per Reel
AMC79L05
Copyright © 2006 ADDtek Corp. 5 DD062_D -- JUNE 2006
8-Pin Plastic S.O.I.C.
INCHES MILLIMETERS
MIN TYP MAX MIN TYP MAX
A 0.183 - 0.202 4.65 - 5.13
B 0.144 - 0.163 3.66 - 4.14
C 0.068 - 0.074 1.73 - 1.88
D 0.010 - 0.020 0.25 - 0.51
F 0.015 - 0.035 0.38 - 0.89
G 0.050 BSC 1.27 BSC
J 0.007 - 0.010 0.19 - 0.25
K 0.005 - 0.010 0.13 - 0.25
L 0.189 - 0.205 4.80 - 5.21
M - - 8º - - 8º
P 0.228 - 0.244 5.79 - 6.20
SEATING PLAN
A
D
F
P
B
K
C
M
L
J
G
Note: For 8 pin S.O.I.C., 100 units per tube
AMC79L05
Copyright © 2006 ADDtek Corp. 6 DD062_D -- JUNE 2006
IMPORTANT NOTICE
ADDtek reserves the right to make changes to its products or to discontinue any integrated circuit product or service
without notice, and advises its customers to obtain the latest version of relevant information to verify, before placing
orders, that the information being relied on is current.
A few applications using integrated circuit products may involve potential risks of death, personal injury, or severe
property or environmental damage. ADDtek integrated circuit products are not designed, intended, authorized, or
warranted to be suitable for use in life-support applications, devices or systems or other critical applications. Use of
ADDtek products in such applications is understoo d to be fully at the risk of the customer. In order to minimize risks
associated with the customer’s applications, the customer should provide adequate design and operating safeguards.
ADDtek assumes to no liability to customer product design or application support. ADDtek warrants the performance of
its products to the specifications app licable at the time of sale.
ADDtek Corp.
9F, No. 20, Sec. 3, Bade Rd., Taipei, Taiwan, 105
TEL: 2-25700299
FAX: 2-25700196
