Hi,
I need to replace an old GL7815 Voltage Regulator, given to +15V and 1.5A.
I often use the LM2940T but they are given for 1A only.
There are other alternatives (such as LT1081) but I am looking for:
Thank you !
I need to replace an old GL7815 Voltage Regulator, given to +15V and 1.5A.
I often use the LM2940T but they are given for 1A only.
There are other alternatives (such as LT1081) but I am looking for:
- a "through hole" mounting
- and the same pinout: In, Gnd, Out than the original 7815...
Thank you !
LM340t15?
Edit scratch that, LD1085 has a 15V fixed version i think. Scratch that one as well.
L7815ABV STMicroelectronics - IC: voltage regulator | linear,fixed; 15V; 1.5A; TO220AB; THT; +-2% | TME - Electronic components
This is the plastic case version.
L7815CP STMicroelectronics - IC: voltage regulator | linear,fixed; 15V; 1.5A; TO220FP; THT; +-2% | TME - Electronic components
Edit scratch that, LD1085 has a 15V fixed version i think. Scratch that one as well.
L7815ABV STMicroelectronics - IC: voltage regulator | linear,fixed; 15V; 1.5A; TO220AB; THT; +-2% | TME - Electronic components
This is the plastic case version.
L7815CP STMicroelectronics - IC: voltage regulator | linear,fixed; 15V; 1.5A; TO220FP; THT; +-2% | TME - Electronic components
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Ask for an ordinary 7815 in an electronics shop.
The GL part is related to the manufacturer.
Bear in mind the negative part 7915 has different pinout (GIO).
The GL part is related to the manufacturer.
Bear in mind the negative part 7915 has different pinout (GIO).
1.5A linear regulators were a bad idea, especially in TO220, which is probably why you need to replace one. I suggest to buy a LM2596 etc switching regulator module from Amazon etc and wire it into the circuit.
@steveu: you are right but this is not something I am going to do rightnow...
@V4lvelover:
LM340T-15 looks good and pinout is the same than the 7805 : IGO.
For the 7805 (positive +5V), the datasheet says that the LM340A-50 has a better regulation, so good news.
I am still trying to find something better than the LM2990T to replace the 7905 (negative -5V), but it seems that the LM340A does not exist in a negative version.
Do you have any recommandation for a better 7905 replacement with the same pinout than the 7905 ??
and same question for the 7905 (negative -15V) ?
@V4lvelover:
LM340T-15 looks good and pinout is the same than the 7805 : IGO.
For the 7805 (positive +5V), the datasheet says that the LM340A-50 has a better regulation, so good news.
I am still trying to find something better than the LM2990T to replace the 7905 (negative -5V), but it seems that the LM340A does not exist in a negative version.
Do you have any recommandation for a better 7905 replacement with the same pinout than the 7905 ??
and same question for the 7905 (negative -15V) ?
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Hold, on i will look at TME for you.
L7915ACV STMicroelectronics - IC: voltage regulator | linear,fixed; -15V; 1.5A; TO220AB; THT | TME - Electronic components
Same as the one i found before, but the negative 1.5A counterpart.
If it is for a new build, i can also draw you a board for +-15V, price is a pack of cigarettes.
L7915ACV STMicroelectronics - IC: voltage regulator | linear,fixed; -15V; 1.5A; TO220AB; THT | TME - Electronic components
Same as the one i found before, but the negative 1.5A counterpart.
If it is for a new build, i can also draw you a board for +-15V, price is a pack of cigarettes.
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@altec9440:
https://www.mouser.fr/Semiconductors/Power-Management-ICs/Voltage-Regulators-Voltage-Controllers/Switching-Voltage-Regulators/_/N-668jt?Keyword=LM320&FS=True
It would be a dream to find the equivalent of the LM340A but with a negative voltage ! exactly what I am looking for...
@v4lve lover:
The L7915ACV would be a good choice (the output tolerance is 2%) but unfortunately the pinout is not compatible with the 7915...
Edit: my error: it seems that the L7915ACV is pinout compatible with the 7915: GIO...
Are you sure: I went to the Mouser website, and the "LM320" search returns regulators that are not what we are looking for:
https://www.mouser.fr/Semiconductors/Power-Management-ICs/Voltage-Regulators-Voltage-Controllers/Switching-Voltage-Regulators/_/N-668jt?Keyword=LM320&FS=True
It would be a dream to find the equivalent of the LM340A but with a negative voltage ! exactly what I am looking for...
@v4lve lover:
The L7915ACV would be a good choice (the output tolerance is 2%) but unfortunately the pinout is not compatible with the 7915...
Edit: my error: it seems that the L7915ACV is pinout compatible with the 7915: GIO...
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LM78xx positive / LM79xx negative
LM340 (c) xx positive / LM320 (c) xx negative (where case is T for TO220, K for T03...). Precision types was LM140/LM120.
lm320T-15 from mouser
L7915 STM from electrodif
"A" have a narrow regulation but useless for near almost uses.
a good ressource :
NSC
Hi all,
I have finally ordered:
These should bring significantly better regulation than the original ones.
Provided that they are used in a bass dedicated amp in a bi-amplified system, I am not sure it would make a sound improvement to invest more money than these.
I often use the TEKDevice regulators based on the TPS7A47 exceptional chip, when they are critical, but they support only 1A...
I have finally ordered:
- LM340A for replacing the 7805
- L7905ACV for replacing the 7905
- LM340T-15 for replacing the 7815
- L7915ACV for replacing the 7915
These should bring significantly better regulation than the original ones.
Provided that they are used in a bass dedicated amp in a bi-amplified system, I am not sure it would make a sound improvement to invest more money than these.
I often use the TEKDevice regulators based on the TPS7A47 exceptional chip, when they are critical, but they support only 1A...