AN7709SP-E1 Panasonic - SSG, AN7709SP-E1 Datasheet - Page 10

• Manufacturer Part Number: AN7709SP-E1
• Description: VOLT REG POS 9V 1.2A SMD SP3SU
• Manufacturer: Panasonic - SSG

Specifications of AN7709SP-E1

• Regulator Topology: Positive Fixed
• Voltage - Output: 9V
• Voltage - Input: 10 ~ 20 V
• Number Of Regulators: 1
• Current - Output: 1.2A
• Current - Limit (min): 1.2A
• Operating Temperature: 25°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: SP-3SU
• Lead Free Status / RoHS Status: Request inventory verification / Request inventory verification
• Voltage - Dropout (typical): -
• Other names: AN7709SP-E1TR; AN7709SPE1; AN7709SPE1TR

AN7709SP
1. Input short-circuit protection circuit
2. Capacitor for external compensation
Usage Notes
were short-circuited at normal use conditions in some cases, the voltage of the output pin (pin 3) becomes higher than that of the DC
input pin and electrons charged in the output capacitor C
series, however, it is not necessary to connect the protection diode because these series have a built-in protection circuit to safeguard
the element from discharge current.
decrease in capacity of the aluminum electrolytic capacitor and increase of ESR of this capacitor may lead to oscillation.
capacitor whose equivalent series resistance (ESR) has the temperature characteristic within the recommended area shown on the
right.
0.33 μF
When the DC input pin (pin 1) and the ground pin (pin 2) of our conventional three-pin regulators (AN78xx/SP series, etc.)
In those cases, it was necessary for you to connect a general silicon diode as shown in the figure on the right. In the AN77xxSP
To maintain the stability, insert a 33 μF capacitor as close to pin 3 and pin 2 as possible. In case of using at low temperature,
In the AN77xxSP series, for the output capacitor C
C
IN
V
V
IN
IN
0.33 μF
1
C
IN
IN
2
GND
1
3
OUT
I
OUT
2
OUT
OUT
SFF00077BEB
, it is recommended to use an aluminum electrolytic capacitor or tantalum
C
ESR
33 μF
OUT
flow into the input side, resulting in break of the element.
Not required
3
Output capacitor ESR
(Equivalent series resistance)
T
33 μF
C
a
= 25°C
OUT
V
OUT
I
OUT
V
I
C
OUT
IN
OUT
(A)
= 10 V to 20 V
= 0 A to 1 A
= 33 μF
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