Key Features

• Low dropout voltage: 1 V typical
• Output current up to 800 mA
• Fixed output voltage of 3.3 V
• Adjustable version availability (VREF = 1.25 V)
• Internal current and thermal limit
• Available in ±1% (at 1% at 25°C) and 2% in full temperature range
• Supply voltage rejection: 75 dB typical

Description

The LD1117S33CTR is a low drop voltage regulator capable of providing up to 800 mA of output current. It is available in adjustable and fixed versions, with the fixed versions offering output voltages including 1.2 V, 1.8 V, 2.5 V, 2.85 V, 3.3 V, and 5.0 V. The device is supplied in various packages including SOT-223, DPAK, SO-8, and TO-220. High efficiency is ensured by an NPN pass transistor, and on-chip trimming allows the regulator to achieve a very tight output voltage tolerance.

Electrical Characteristics

• Output Voltage (VO): 3.267 V min., 3.3 V typical, 3.333 V max. at 25°C
• Line Regulation (ΔVO): 1 mV max. from 4.75 to 15 V input, at 25°C
• Load Regulation (ΔVO): 1 mV max. from 4.75 V, at 25°C
• Temperature Stability (ΔVO): 0.5%
• Long Term Stability (ΔVO): 0.3% after 1000 hrs at 125°C
• Operating Input Voltage (Vin): 15 V max.
• Quiescent Current (Id): 5 mA min., 10 mA max. at Vin ≤ 15 V
• Output Current (IO): 800 mA min., 950 mA typical, 1300 mA max. at 25°C
• Output Noise Voltage (eN): 100 µV peak-to-peak from 10 Hz to 10 kHz at 25°C
• Supply Voltage Rejection (SVR): 60 dB min. at 120 Hz, with 40 mA output current, at 25°C
• Dropout Voltage (Vd): 1 V at IO = 100 mA, 1.05 V at IO = 500 mA, 1.10 V at IO = 800 mA

Package Information

• Package Type: SOT-89
• Package Drawing: Refer to the datasheet for detailed package dimensions and outline.

Order Codes

• LD1117S33CTR: SOT-89 package, 3.3 V output voltage

Mechanical Data for SOT-89 Package

• A: 1.40 min., 1.60 typ., 1.80 max. mm
• B: 0.44 min., 0.56 typ., 0.68 max. mm
• C: 0.35 min., 0.44 typ., 0.53 max. mm
• D: 4.40 min., 4.60 typ., 4.80 max. mm
• E: 2.29 min., 2.60 typ., 2.91 max. mm