ML7900 - FBE*
SERIES
3-TERMINAL NEGATIVE
VOLTAGE REGULATOR
The
ML7900 series
are 3-Terminal Negative Voltage Regulators. These negative regulators are intended as complements to
the popular ML7800 series of positive voltage regulations, and they are available in the same voltage options from -5V to -
24V. The ML7900 series employ internal current-limiting. safe-area protection , and thermal shutdown, making them
virtually indestructible.
*
Parts of
FBE
are satisfied with requirements of directive
2002/95/EC
on
RoHS
.
■
Package Outline
TO-220
(7900A)
1. OUT
2. IN
3. COMMON
32
TO-220F
(7900FA)
1
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Input Voltage
(Ta=25℃)
SYMBOL
V
IN
Maximum Rating
ML7905 to ML7909
ML7912 to ML7920
ML7924
-35
-35
-40
-40 to +125
Operating Junction Temperature
Operating Ambient Temperature
Tj
Topr
15(Tc≦45℃ )
-30 to +125
-30 to +75
UNIT
V
Storage Temperature Range
Operating Temperature
Range
Power Dissipation
Tstg
℃
℃
W
P
D
THERMAL RESISTANCE
Thermal Resistance
Junction-to-Ambient Temperature
Junction-to-Case
Θ
ja
Θ
jc
60
5
℃/W
ELECTRICAL CHARACTERISTICS
PARAMETER
ML7905A / ML7905FA
Output Voltage
Quiescent Current
Load Regulation
Line Regulation
Ripple Rejection
Output Noise Voltage
Vo
I
Q
ΔVo
Io
RR
V
NO
V
IN
=-10V
V
IN
=-10V
V
IN
=-10V
(Tj=25℃,C1=0.33μF,Co=0.1μF)
Measurement is to be conducted
in pulse testing.
SYMBOL
TEST CONDITIONS
MIN. TYP. MAX. UNIT
Io=0.5A
Io=0mA
Io=0.005A to 1.5A
-4.8
-
-
-
54
-
-
-5.0
2.2
50
12.5
60
125
-0.4
-5.2
5.0
100
100
-
-
-
V
mA
mV
mV
dB
μV
mV/℃
ΔVo
Vin V
IN
=-7 to -25V Io=0.5A
V
IN
=-10V
V
IN
=-10V
Io=0.5A
e
in=2Vp-p
f=120Hz
Io=0.5A
BW=10Hz to 100KHz
Io=5mA
Average Temperature
ΔVo
/
ΔT
V
IN
=-10V
Cofficient of Output Voltage
MICRO ELECTRONICS LTD.
7/F, Enterprise Square Three, 39 Wang Chiu Road, Kowloon Bay, Kowloon, Hong Kong.
Fax: (852) 2341 0321 Tel: (852) 2343 0181-5 Website: www.microelectr.com.hk
APR 2005
Page 1 of 10
ELECTRICAL CHARACTERISTICS
PARAMETER
ML7906A / ML7906FA
Output Voltage
Quiescent Current
Load Regulation
Line Regulation
Ripple Rejection
Vo
I
Q
ΔVo
Io
V
IN
=-11V
V
IN
=-11V
V
IN
=-11V
(Tj=25℃,C1=0.33μF,Co=0.1μF)
TEST CONDITIONS
Measurement is to be conducted
in pulse testing.
SYMBOL
MIN. TYP. MAX. UNIT
Io=0.5A
Io=0mA
Io=0.005A to 1.5A
Io=0.5A
Io=0.5A
-5.75
-
-
-
f=120Hz
Io=0.5A
54
-
-
-6.0
2.2
50
12.5
60
150
-0.4
-6.25
5.0
120
120
-
-
-
V
mA
mV
mV
dB
μV
mV/℃
ΔVo
Vin V
IN
=-8 to -25V
RR
V
IN
=-11V
e
in=2Vp-p
V
IN
=-11V
Output Noise Voltage
V
NO
Average Temperature
ΔVo
/
ΔT
V
IN
=-11V
Cofficient of Output Voltage
ML7908A / ML7908FA
Output Voltage
Quiescent Current
Load Regulation
Line Regulation
Ripple Rejection
Vo
I
Q
ΔVo
Io
V
IN
=-14V
V
IN
=-14V
V
IN
=-14V
BW=10Hz to 100KHz
Io=5mA
Io=0.5A
Io=0mA
Io=0.005A to 1.5A
Io=0.5A
-7.7
-
-
-
f=120Hz
Io=0.5A
54
-
-
-8.0
2.2
60
12.5
60
200
-0.7
-8.3
5.0
160
160
-
-
-
V
mA
mV
mV
dB
μV
mV/℃
ΔVo
Vin V
IN
=-10.5 to -25V
RR
V
IN
=-14V
Io=0.5A
e
in=2Vp-p
V
IN
=-14V
Output Noise Voltage
V
NO
Average Temperature
ΔVo
/
ΔT
V
IN
=-14V
Cofficient of Output Voltage
ML7909A / ML7909FA
Output Voltage
Quiescent Current
Load Regulation
Line Regulation
Ripple Rejection
Vo
I
Q
ΔVo
Io
V
IN
=-15V
V
IN
=-15V
V
IN
=-15V
BW=10Hz to 100KHz
Io=5mA
Io=0.5A
Io=0mA
Io=0.005A to 1.5A
Io=0.5A
-8.65
-
-
-
f=120Hz
Io=0.5A
54
-
-
-9.0
2.2
60
8
60
250
-0.8
-9.35
5.0
180
180
-
-
-
V
mA
mV
mV
dB
μV
mV/℃
ΔVo
Vin V
IN
=-11.5 to -25V
RR
V
IN
=-15V
Io=0.5A
e
in=2Vp-p
V
IN
=-15V
Output Noise Voltage
V
NO
Average Temperature
ΔVo
/
ΔT
V
IN
=-15V
Cofficient of Output Voltage
ML7912A / ML7912FA
Output Voltage
Quiescent Current
Load Regulation
Line Regulation
Ripple Rejection
Vo
I
Q
ΔVo
Io
V
IN
=-19V
V
IN
=-19V
V
IN
=-19V
BW=10Hz to 100KHz
Io=5mA
Io=0.5A
Io=0mA
Io=0.005A to 1.5A
Io=0.5A
-11.5
-
-
-
f=120Hz
Io=0.5A
54
-
-
-12.0
2.7
60
5
60
300
-0.8
-12.5
6.0
240
240
-
-
-
V
mA
mV
mV
dB
μV
mV/℃
ΔVo
Vin V
IN
=-14.5 to -30V
RR
V
IN
=-19V
Io=0.5A
e
in=2Vp-p
V
IN
=-19V
Output Noise Voltage
V
NO
Average Temperature
ΔVo
/
ΔT
V
IN
=-19V
Cofficient of Output Voltage
BW=10Hz to 100KHz
Io=5mA
Page 2 of 10
ELECTRICAL CHARACTERISTICS
PARAMETER
ML7915A / ML7915FA
Output Voltage
Quiescent Current
Load Regulation
Line Regulation
Ripple Rejection
Vo
I
Q
ΔVo
Io
V
IN
=-23V
V
IN
=-23V
V
IN
=-23V
(Tj=25℃,C1=0.33μF,Co=0.1μF)
Measurement is to be conducted
in pulse testing.
SYMBOL
TEST CONDITIONS
MIN. TYP. MAX. UNIT
Io=0.5A
Io=0mA
Io=0.005A to 1.5A
Io=0.5A
-14.4
-
-
-
f=120Hz
Io=0.5A
54
-
-
-15.0
2.7
60
5
60
375
-1
-15.6
6.0
300
300
-
-
-
V
mA
mV
mV
dB
μV
mV/℃
ΔVo
Vin V
IN
=-17.5 to -30V
RR
V
IN
=-23V
Io=0.5A
e
in=2Vp-p
V
IN
=-23V
Output Noise Voltage
V
NO
Average Temperature
ΔVo
/
ΔT
V
IN
=-23V
Cofficient of Output Voltage
ML7918A / ML7918FA
Output Voltage
Quiescent Current
Load Regulation
Line Regulation
Ripple Rejection
Vo
I
Q
ΔVo
Io
V
IN
=-27V
V
IN
=-27V
V
IN
=-27V
BW=10Hz to 100KHz
Io=5mA
Io=0.5A
Io=0mA
Io=0.005A to 1.5A
Io=0.5A
-17.3
-
-
-
f=120Hz
Io=0.5A
54
-
-
-18.0
2.7
60
5
60
450
-1
-18.7
6.0
360
360
-
-
-
V
mA
mV
mV
dB
μV
mV/℃
ΔVo
Vin V
IN
=-21 to -33V
RR
V
IN
=-27V
Io=0.5A
e
in=2Vp-p
V
IN
=-27V
Output Noise Voltage
V
NO
Average Temperature
ΔVo
/
ΔT
V
IN
=-27V
Cofficient of Output Voltage
ML7924A / ML7924FA
Output Voltage
Quiescent Current
Load Regulation
Line Regulation
Ripple Rejection
Vo
I
Q
ΔVo
Io
V
IN
=-33V
V
IN
=-33V
V
IN
=-33V
BW=10Hz to 100KHz
Io=5mA
Io=0.5A
Io=0mA
Io=0.005A to 1.5A
Io=0.5A
-23.0
-
-
-
f=120Hz
Io=0.5A
54
-
-
-24.0
2.7
85
5
60
600
-1
-25.0
6.0
480
480
-
-
-
V
mA
mV
mV
dB
μV
mV/℃
ΔVo
Vin V
IN
=-28 to -38V
RR
V
IN
=-33V
Io=0.5A
e
in=2Vp-p
V
IN
=-33V
Output Noise Voltage
V
NO
Average Temperature
ΔVo
/
ΔT
V
IN
=-33V
Cofficient of Output Voltage
BW=10Hz to 100KHz
Io=5mA
Page 3 of 10
■
Equivalent Circuit
■
Power Dissipation vs. Ambient Temperature
HS
20
Power Dissipation P
D
(W)
Heat Sink
= Heat Sink Thermal Resistance
15
HS
= 3 C/W
= 5 C/W
10
HS
HS
= 10 C/W
= 20 C/W
5
HS
Without Heat Sink
0
25
50
75
Ambient Temperature Ta ( C)
■
Test Circuit
1. Output Voltage, Line Regulation, Load
Regulation, Quiescent Current,
Average Temperature Coefficient of
Output Voltage, Output Noise Voltage.
2. Ripple Rejection
2
3
1
2
3
1
Page 4 of 10
■
Typical Characteristics
Page 5 of 10
RF/Wirelessly
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