STMicroelectronics LD1085DT33R
- Part Number:
- LD1085DT33R
- Manufacturer:
- STMicroelectronics
- Ventron No:
- 3767421-LD1085DT33R
- Description:
- IC REG LDO 3.3V 3A DPAK
- Datasheet:
- LD1085DT33R
Description
The LD1085 is a low drop voltage regulator capable of providing up to 3 A of output current. Dropout is guaranteed at a maximum of 1.2 V at the maximum output current, decreasing at lower loads. The LD1085 is pin-to-pin compatible with the older 3-terminal adjustable regulators, but offers better performance in terms of drop and output tolerance.
Unlike PNP regulators, where a part of the output current is wasted as quiescent current, the LD1085 quiescent current flows into the load, thus increasing efficiency. Only a 10 uF minimum capacitor is needed for stability.
The device is supplied in TO-220, TO-220FP, D'PAK, and D PAK/A packages. On-chip trimming allows the regulator to reach a very tight output voltage tolerance, within ±1% at 25 °C.
Features
Typical dropout 1.3 V (at 3 A)
Three terminal adjustable or fixed output voltage 1.8 V, 2.5 V, 3.3 V, 5V
Guaranteed output current up to 3 A
Output tolerance ± 1% at 25 °C and ± 2% in full temperature range
Internal power and thermal limit
Wide operating temperature range -40 °C to 125°C
Package available: TO-220, TO-220FP, D PAK, D PAK/A
Pinout compatibility with standard adjustable VREG
Applications
Post regulators for switching power supplies
Power supply for microprocessor and DSP applications
Battery chargers
High efficiency linear regulators
The LD1085 is a low drop voltage regulator capable of providing up to 3 A of output current. Dropout is guaranteed at a maximum of 1.2 V at the maximum output current, decreasing at lower loads. The LD1085 is pin-to-pin compatible with the older 3-terminal adjustable regulators, but offers better performance in terms of drop and output tolerance.
Unlike PNP regulators, where a part of the output current is wasted as quiescent current, the LD1085 quiescent current flows into the load, thus increasing efficiency. Only a 10 uF minimum capacitor is needed for stability.
The device is supplied in TO-220, TO-220FP, D'PAK, and D PAK/A packages. On-chip trimming allows the regulator to reach a very tight output voltage tolerance, within ±1% at 25 °C.
Features
Typical dropout 1.3 V (at 3 A)
Three terminal adjustable or fixed output voltage 1.8 V, 2.5 V, 3.3 V, 5V
Guaranteed output current up to 3 A
Output tolerance ± 1% at 25 °C and ± 2% in full temperature range
Internal power and thermal limit
Wide operating temperature range -40 °C to 125°C
Package available: TO-220, TO-220FP, D PAK, D PAK/A
Pinout compatibility with standard adjustable VREG
Applications
Post regulators for switching power supplies
Power supply for microprocessor and DSP applications
Battery chargers
High efficiency linear regulators
STMicroelectronics LD1085DT33R technical specifications, attributes, parameters and parts with similar specifications to STMicroelectronics LD1085DT33R.
- MountSurface Mount
- Mounting TypeSurface Mount
- Package / CaseTO-252-3, DPak (2 Leads Tab), SC-63
- Operating Temperature-40°C~125°C
- PackagingTape & Reel (TR)
- Part StatusObsolete
- Moisture Sensitivity Level (MSL)1 (Unlimited)
- Number of Terminations2
- ECCN CodeEAR99
- SubcategoryOther Regulators
- Packing MethodTAPE AND REEL
- TechnologyBIPOLAR
- Terminal PositionSINGLE
- Terminal FormGULL WING
- Peak Reflow Temperature (Cel)NOT SPECIFIED
- Number of Functions1
- Terminal Pitch2.28mm
- Time@Peak Reflow Temperature-Max (s)NOT SPECIFIED
- Base Part NumberLD1085
- Pin Count3
- JESD-30 CodeR-PSSO-G2
- Number of Outputs1
- Qualification StatusNot Qualified
- Voltage - Input (Max)30V
- Output Voltage3.3V
- Output TypeFixed
- Output ConfigurationPositive
- Current - Output3A
- Output Voltage 13.3V
- Input Voltage (Min)4.9V
- Number of Regulators1
- Protection FeaturesOver Current, Over Temperature
- Current - Quiescent (Iq)10mA
- Voltage Dropout (Max)1.5V @ 3A
- PSRR72dB (120Hz)
- Dropout Voltage1.3V
- Dropout Voltage1-Nom1.3V
- Voltage Tolerance-Max2%
- Input Voltage Absolute-Max30V
- Input Bias Current5mA
- Length6.5mm
- Height Seated (Max)2.63mm
- RoHS StatusROHS3 Compliant
- Lead FreeLead Free
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