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Compare electronics parts

Put up to four catalogue parts side by side. BananaBoard shows exact structured values, their conditions and sources—and keeps unknown or inapplicable fields explicit.

Choose 2–4 parts

Values come directly from the source-cited catalogue. Unknown is kept unknown; this tool does not infer compatibility.

2/4
LM7805AMS1117-3.3

Structured comparison

Conditions and source links stay attached to each value. No automatic winner is declared.

Overview

Manufacturer

LM7805
onsemi (also TI, STMicroelectronics and others — a standard multi-sourced part)
AMS1117-3.3
Advanced Monolithic Systems (widely second-sourced)

Category

LM7805
Linear / LDO
AMS1117-3.3
Linear / LDO

Object type

LM7805
ic
AMS1117-3.3
ic

Package

LM7805
TO-220
AMS1117-3.3
SOT-223

Documented pins

LM7805
3
AMS1117-3.3
3

Interfaces

LM7805
Unknown
AMS1117-3.3
Unknown

Lifecycle

LM7805
ACTIVE
AMS1117-3.3
ACTIVE

Physical pin mapping

LM7805
Unknown
AMS1117-3.3
Unknown

Browser simulation

LM7805
Not available
AMS1117-3.3
Not available

Electrical

Topology

LM7805
linear
AMS1117-3.3
ldo

Min Input Voltage

LM7805
7 VSource

Below this the regulator runs out of dropout headroom and output sags below 5V.

AMS1117-3.3
4.75 VSource

Below this, output headroom collapses below the dropout spec and 3.3V is no longer guaranteed.

Max Input Voltage

LM7805
AMS1117-3.3

Output Voltage

LM7805
AMS1117-3.3
3.3 VSource

Adjustable Output

LM7805
No
AMS1117-3.3
No

This is the fixed -3.3 variant. The adjustable AMS1117-ADJ sets Vout with an external resistor divider instead — different part, not this one.

Max Output Current

LM7805
1.5 ASource

The package/thermal limit is reached long before this current rating on anything but a small Vin-Vout gap — see the description's heat math.

AMS1117-3.3

Dropout Voltage

LM7805
2 V @ Iout=1 ASource
AMS1117-3.3
1.1 V @ Iout=1 ASource

The headline gotcha of this part. Vin must stay above roughly Vout+dropout (~4.4-4.6V) at full load or the output sags below 3.3V.

Quiescent Current

LM7805
8 mASource

Rises somewhat with output current and junction temperature.

AMS1117-3.3
5 mA @ Iout=1 ASource

Datasheet calls this the ground-pin current; it rises with load current.

Performance

Switching Frequency

LM7805
Not applicable
AMS1117-3.3
Not applicable

Physical

Package

LM7805
TO-220
AMS1117-3.3
SOT-223

Mounting

LM7805
tht
AMS1117-3.3
smd

Thermal

Max Operating Temp

LM7805
125 °CSource

Junction temperature rating. Free-air TO-220 thermal resistance is ~65°C/W — the heat math in the description follows directly from this.

AMS1117-3.3
125 °CSource

Junction temperature rating — the small SOT-223 tab has limited heat-shedding, so real headroom is lower without PCB copper pour under/around it.

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