Product overview
Description
The LFXX is a very low drop regulator available in TO-220, TO-220FP, DPAK and PPAK packages and in a wide range of output voltages. The low drop voltage (0.45 V) and low quiescent current make it particularly suitable for low-noise, low-power applications and especially in battery-powered systems. In the 5 pin configuration (PPAK) a shutdown logic control function is available (pin 2, TTL compatible). This means that when the device is used as a local regulator, a part of the board can be put in standby, decreasing the total power consumption. In the three terminal configuration, the device has the same electrical performance, but it is fixed in ON state. It requires a capacitor of only 2.2 µF for stability, saving board space and costs. The LFXX is available as automotive grade in DPAK and PPAK packages, for the options of output voltages whose commercial part numbers are shown in the order codes. These devices are qualified according to the specification AEC-Q100 of the automotive market, in the temperature range -40 °C to 125 °C, and the statistical tests PAT, SYL, SBL are performed.
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All features
- Very low-dropout voltage (0.45 V)
- Very low quiescent current (typ. 50 µA in OFF mode, 500 µA in ON mode)
- Output current up to 500 mA
- Logic-controlled electronic shutdown
- Output voltages of 1.5; 1.8; 2.5; 3.3; 4.7; 5; 6; 8; 8.5; 9; 12 V
- Automotive grade product: 1.8 V, 2.5 V, 3.3 V, 5.0 V, 8.0 V, 8.5 V VOUT in DPAK and PPAK packages
- Internal current and thermal limit
- Only 2.2 µF for stability
- Available in ±1% (AB), ±1.5% (AC) or ±2% (C) selection at 25 °C
- Supply voltage rejection: 80 db (typ.)
- Temperature range: from -40 to 125 °C
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STMicroelectronics - LFXX
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3D models
Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Longevity Commitment | Longevity Starting Date | Material Declaration** |
|---|---|---|---|---|---|---|---|
| LF120ABDT-TR | Active | DPAK | Industrial | Ecopack2 | - | - | |
| LF120CDT-TR | Active | DPAK | Industrial | Ecopack2 | - | - | |
| LF15ABDT-TR | Active | DPAK | Industrial | Ecopack2 | - | - | |
| LF18ABDT-TR | Active | DPAK | Industrial | Ecopack2 | - | - | |
| LF18ABPT-TR | Active | PPACK 5 | Industrial | Ecopack2 | - | - | |
| LF18CDT-TR | Active | DPAK | Industrial | Ecopack2 | - | - | |
| LF33ABDT-TR | Active | DPAK | Industrial | Ecopack2 | - | - | |
| LF33ABV | Active | TO-220 | Industrial | Ecopack2 | - | - | |
| LF33CDT-TR | Active | DPAK | Industrial | Ecopack2 | - | - | |
| LF33CV | Active | TO-220 | Industrial | Ecopack2 | - | - | |
| LF50ABDT-TR | Active | DPAK | Industrial | Ecopack2 | - | - | |
| LF50ABPT-TR | Active | PPACK 5 | Industrial | Ecopack2 | - | - | |
| LF50ABV | Active | TO-220 | Industrial | Ecopack2 | - | - | |
| LF50CDT-TR | Active | DPAK | Industrial | Ecopack2 | - | - | |
| LF50CPT-TR | Active | PPACK 5 | Industrial | Ecopack2 | - | - | |
| LF50CV | Active | TO-220 | Industrial | Ecopack2 | - | - | |
| LF60ABDT-TR | Active | DPAK | Industrial | Ecopack2 | - | - | |
| LF60CDT-TR | Active | DPAK | Industrial | Ecopack2 | - | - | |
| LF80ABDT-TR | Active | DPAK | Industrial | Ecopack2 | - | - | |
| LF80CDT-TR | Active | DPAK | Industrial | Ecopack2 | - | - |
LF18ABPT-TR
Package:
PPACK 5Material Declaration**:
LF50ABPT-TR
Package:
PPACK 5Material Declaration**:
LF50CPT-TR
Package:
PPACK 5Material Declaration**:
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
Sample & Buy
| Part Number | Marketing Status | Budgetary Price (US$)*/Qty | Order from ST | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating temperature (°C) | Operating Temperature (°C) (max) | Grade | Output Voltage (V) (nom) | Output Tolerance (typ) | Output Current (A) (nom) | ||
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| LF50CDT-TR | | | distributors No availability of distributors reported, please contact our sales office |
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| LF33ABV | | | distributors No availability of distributors reported, please contact our sales office |
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| LF80ABDT-TR | | | distributors No availability of distributors reported, please contact our sales office |
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| LF60ABDT-TR | | | distributors No availability of distributors reported, please contact our sales office |
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| LF50ABV | | | distributors No availability of distributors reported, please contact our sales office |
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| LF18CDT-TR | | | distributors No availability of distributors reported, please contact our sales office |
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| LF50CV | | | distributors No availability of distributors reported, please contact our sales office |
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| LF18ABDT-TR | | | distributors No availability of distributors reported, please contact our sales office |
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| LF15ABDT-TR | | | distributors No availability of distributors reported, please contact our sales office |
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| LF33CV | | | distributors No availability of distributors reported, please contact our sales office |
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| LF50ABPT-TR | | | distributors No availability of distributors reported, please contact our sales office |
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| LF18ABPT-TR | | | distributors No availability of distributors reported, please contact our sales office |
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| LF50ABDT-TR | | | distributors No availability of distributors reported, please contact our sales office |
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| LF50CPT-TR | | | distributors No availability of distributors reported, please contact our sales office |
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| LF120ABDT-TR | | | distributors No availability of distributors reported, please contact our sales office |
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| LF80CDT-TR | | | distributors No availability of distributors reported, please contact our sales office |
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| LF33ABDT-TR | | | distributors No availability of distributors reported, please contact our sales office |
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| LF120CDT-TR | | | distributors No availability of distributors reported, please contact our sales office |
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| LF33CDT-TR | | | distributors No availability of distributors reported, please contact our sales office |
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| LF60CDT-TR | | | distributors No availability of distributors reported, please contact our sales office |
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LF50CDT-TR Active
LF33ABV Active
LF80ABDT-TR Active
LF60ABDT-TR Active
LF50ABV Active
LF18CDT-TR Active
LF50CV Active
LF18ABDT-TR Active
LF15ABDT-TR Active
LF33CV Active
LF50ABPT-TR Active
LF18ABPT-TR Active
LF50ABDT-TR Active
LF50CPT-TR Active
LF120ABDT-TR Active
LF80CDT-TR Active
LF33ABDT-TR Active
LF120CDT-TR Active
LF33CDT-TR Active
LF60CDT-TR Active
(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors