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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
AMS1117-3.3LM7805

Structured comparison

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

Overview

Manufacturer

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

Category

AMS1117-3.3
Linear / LDO
LM7805
Linear / LDO

Object type

AMS1117-3.3
ic
LM7805
ic

Package

AMS1117-3.3
SOT-223
LM7805
TO-220

Documented pins

AMS1117-3.3
3
LM7805
3

Interfaces

AMS1117-3.3
Unknown
LM7805
Unknown

Lifecycle

AMS1117-3.3
ACTIVE
LM7805
ACTIVE

Physical pin mapping

AMS1117-3.3
Unknown
LM7805
Unknown

Browser simulation

AMS1117-3.3
Not available
LM7805
Not available

Electrical

Topology

AMS1117-3.3
ldo
LM7805
linear

Min Input Voltage

AMS1117-3.3
4.75 VSource

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

LM7805
7 VSource

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

Max Input Voltage

AMS1117-3.3
LM7805

Output Voltage

AMS1117-3.3
3.3 VSource
LM7805

Adjustable Output

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.

LM7805
No

Max Output Current

AMS1117-3.3
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.

Dropout Voltage

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.

LM7805
2 V @ Iout=1 ASource

Quiescent Current

AMS1117-3.3
5 mA @ Iout=1 ASource

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

LM7805
8 mASource

Rises somewhat with output current and junction temperature.

Performance

Switching Frequency

AMS1117-3.3
Not applicable
LM7805
Not applicable

Physical

Package

AMS1117-3.3
SOT-223
LM7805
TO-220

Mounting

AMS1117-3.3
smd
LM7805
tht

Thermal

Max Operating Temp

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.

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.

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