AN77L04 Panasonic - SSG, AN77L04 Datasheet - Page 8

• Manufacturer Part Number: AN77L04
• Description: VOLTAGE REG POS 4V 100MA TO-92
• Manufacturer: Panasonic - SSG

Specifications of AN77L04

• Regulator Topology: Positive Fixed
• Voltage - Output: 4V
• Voltage - Input: Up to 30V
• Number Of Regulators: 1
• Current - Output: 100mA
• Operating Temperature: -30°C ~ 125°C
• Mounting Type: Through Hole
• Package / Case: TO-92-3 (Standard Body), TO-226
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Dropout (typical): -
• Current - Limit (min): -

AN77Lxx/AN77LxxM Series
■ Main Characteristics (continued)
■ Usage Notes
8
1. Input short-circuit protection circuit
2. Short-circuit between the output pin and the GND pin
3. Capacitor for external compensation
the AN80xx series), when DC input pin (pin 3) is short-cir-
cuited with GND pin (pin 2) in the normal operation condition,
the potential of output pin (pin 1) becomes higher than that of
DC input pin and the electric charges which is charged in out-
put capacitor C
breakage of elements.
as shown in the right figure (the dotted line). However, for the
AN77Lxx/AN77LxxM series, since the protection circuit, which
protects the elements from the discharging current, is incorpo-
rated in the internal circuit, the protection diode is not required.
AN77LxxM series, they have the drooping characteristics as
shown in the "■ Main Characteristics, Overcurrent limit char-
acteristics". When your use under a high voltage happens to
cause any short-circuit between the output pin (pin 1) and the
GND pin (pin 2), the IC is likely to be broken.
required in the output side and it should be added as near to
output pin (pin 1) and GND pin (pin 2) as possible. When it is
used under low temperature, oscillation may occur due to the
decrease of the aluminum electrolytic capacitor's capacitance
and an increase of ESR.
the tantalum capacitor or aluminum electrolytic capacitor whose
equivalent serial resistance with temperature characteristics within
the recommended range specified in the right figure should be used.
1.0
0.5
0
P
0
For the conventional Matsushita 3-pin regulators (such as of
In the above case, the common silicon diode is connected
Because there is no in-built protection circuit in the AN77Lxx/
In order to secure the stability, the capacitor of 10µF is
For the AN77Lxx/AN77LxxM series, it is recommended that
D
Ambient temperature T
 T
25
Power dissipation
a
50
(AN77Lxx series)
O
flows in the input side, having resulted in the
75
Independent IC
without a heat sink
R
P
D
th(j-a)
85
= 658mW (25°C)
100
= 190°C/W
a
125
(°C)
150
1.0
0.5
P
0
0
D
Mounted on standard board
(glass epoxy: 20 mm × 20 mm × t1.7mm
with Cu foil of 1cm
Ambient temperature T
 T
25
Power dissipation
a
(AN77LxxM series)
SFF00004CEB
50
75
2
or more)
85
100
a
125
(AN77LxxM series)
(°C)
Note) The number in ( ) shows the pin number for the
V
I
150
AN77Lxx series.
50
40
30
20
10
C
0.33µF
0
I
(1) 3
20
Output current I
Recommended range
(3)
2
40
60
O
1
Not required
(mA)
(2)
80
100
+
−
C
10µF
V
O
O