NXP shunt voltage regulators TL431 & TLVH431 and linear voltage regulator NX1117 portfolio Standard linear products for voltage regulation in various applications NXP, your one-stop-shop for high-quality products, supplies an attractive portfolio of standard linear devices, including precision shunt regulators with two different reference voltage levels, and linear voltage regulators with adjustable or fixed output voltages. Adjustable precision shunt regulators Linear voltage regulators Key features of TL431 series Reference voltage of 2.495 V Programmable output voltage up to 36 V Three different reference voltage tolerances Low typical output impedance of 0.2 High sink current capability of 100 mA AEC-Q100 qualified (grade 1) Small plastic surface-mounted package SOT23 Key features of NX1117 series Adjustable version with Vref = 1.25 V 9 fixed output voltage versions Wide input voltage range up to 20 V High maximum output current of 1 A 2 output voltage accuracy selections with 1% or 1.25% Wide temperature range from -40 to 125 C Output current limiting Thermal shutdown Safe operation area control Medium power plastic package SOT223 Key features of TLVH431 series Low reference voltage of only 1.24 V Programmable output voltage down to 1.24 V Three different reference voltage tolerances Low typical output impedance of 0.2 Low minimum cathode current of 80 A AEC-Q100 qualified (grade 1) Small plastic surface-mounted package SOT23 SOT23 2.9 x 1.3 x 1.0 mm SOT223 (SC-73) 6.5 x 3.5 x 1.65 mm Low-dropout adjustable and fixed linear voltage regulator NX1117 Types in bold represent new products Package SOT223 (SC-73) Size (mm) 6.5 x 3.5 x 1.65 Ptot (mW) 1700 Vmax (V) 20 Imax (A) 1 Vout drop (V) @ 800 mA 1.1 Vout (V) Vout tolerance 1% 1.25% 1.25 adjustable NX1117CADJZ NX1117CEADJZ 1.2 NX1117C12Z NX1117CE12Z 1.5 NX1117C15Z NX1117CE15Z 1.8 NX1117C18Z NX1117CE18Z 1.9 NX1117C19Z NX1117CE19Z 2.0 NX1117C20Z NX1117CE20Z 2.5 NX1117C25Z NX1117CE25Z 2.85 NX1117C285Z NX1117CE285Z 3.3 NX1117C33Z NX1117CE33Z 5.0 NX1117C50Z NX1117CE50Z Key applications Post regulation for SMPS Consumer and industrial equipment point of load Battery charger Hard drive controllers Core voltage supply: FPGA, PLD, DSP, CPU LCD TV Set top box DVD player Key benefits Wide operation range to 20 V input High maximum output current of 1 A Excellent load regulation Output current limiting Thermal shutdown Safe operation area control Full temperature range from -40 to 125 C Any output voltage in the given range can be set by just two external resistors for the adjustable version No minimum load required for fixed output voltage versions NX1117C33Z and NX1117CE33Z: Typical application for fixed output voltage versions NX1117CADJZ and NX1117CEADJZ: Typical application for adjustable output voltage versions VOUT = Vref x (1+R2/R1) + Iadj x R2 Adjustable shunt voltage regulator TL431 with Vref = 2.495 V types in bold represent new products Package SOT23 Size (mm) 2.9 x 1.3 x 1.0 Ptot (mW) 580 Pinning configuration VKA (V) IK (mA) Vref Tamb (C) 0 to 70 TL431CDBZR -40 to 85 TL431IDBZR -40 to 125 100 * 2) TL431SDT TL431MSDT 3) TL431AIDBZR 1) 1) TL431AQDBZR 1) TL431AFDT 2) TL431AMFDT 2) TL431ASDT 3) TL431AMSDT 3) 0 to 70 TL431BCDBZR -40 to 85 TL431BIDBZR 1) 1) TL431BQDBZR -40 to 125 3) TL431MFDT 3) -40 to 85 0.5% 2) 2) TL431ACDBZR -40 to 125 1) 1) TL431FDT 0 to 70 1% 2.495 1) 1) TL431QDBZR 2% 36 Mirrored pinning* Normal pinning * 1) TL431BFDT 2) TL431BMFDT 2) TL431BSDT 3) TL431BMSDT 3) ffers enhanced stability area and very low load capacity requirement O Offers higher ElectroMagnetic Interference (EMI) ruggedness, e.g. for Switch Mode Power Supply Is designed for standard requirements and linear applications Normal pinning vs. mirrored pinning for TL431 Normal pinning Mirrored pinning Pin Symbol Description 1 k cathode 2 REF reference 3 a anode 1 REF reference 2 k cathode 3 a anode Simplified outline Grafic symbol 3 3 1 2 1 Top view a REF k 2 001aaa152 3 3 1 Top view 2 1 a2 006aab355 REF k 001aaa152 006aab355 Key applications Shunt voltage regulator Precision current limiter Precision constant current sink Isolated feedback loop for Switch Mode Power Supply (SMPS) Key benefits Simple solution to achive a stabilized voltage Any output voltage from 2.5 to 36 V can be set by just two external resistors Full temperature range from -40 to 125 C Low temperature drift: typically 6 mV (between 0 and 70 C) Low output noise High quality level according AEC-Q100 Functional diagram Shunt voltage regulator Any voltage in the given range can be set by only 2 external resistors Adjustable shunt voltage regulator TLVH431 with Vref = 1.24 V types in bold represent new products Package SOT23 Size (mm) 2.9 x 1.3 x 1.0 Ptot (mW) 580 Pinning configuration VKA (V) IK (mA) Vref Tamb (C) TLVH431CDBZR 0 to 70 -40 to 85 TLVH431IDBZR -40 to 125 TLVH431QDBZR 0 to 70 TLVH431ACDBZR 1.5% 20 Mirrored pinning* Normal pinning* 80 1.24 -40 to 85 TLVH431AIDBZR -40 to 125 TLVH431AQDBZR TLVH431AMQDBZR -40 to 125 TLVH431DQDBZR TLVH431DMQDBZR 1% 0.75% TLVH431MQDBZR * Normal pinning vs. mirrored pinning for TLVH431 Pin Normal pinning Mirrored pinning Symbol Description 1 REF reference 2 k cathode 3 a anode 1 k cathode 2 REF reference 3 a anode Simplified outline Grafic symbol 3 3 1 2 a 001aaa152 3 3 1 2 Top view k 2 1 Top view REF a 1 006aab355 REF k 2 001aaa152 006aab355 Key applications Shunt voltage regulator Precision current limiter Precision constant current sink Isolated feedback loop for Switch Mode Power Supply (SMPS) Isolated feedback loop for Switch Mode Power Supply (SMPS) Key benefits Enabling regulated voltage down to 1.24 V Any higher output voltage up to 18 V can be set by just two external resistors Supports feedback loop application for 3.3 V SMPS Lowest Ik(min) value of 55 A (typical) for improved energy efficiency Full temperature range from -40 to 125 C Very low temperature drift: typically 4 mV (between -40 and 125 C) Low output noise High quality level according AEC-Q100 www.nxp.com (c) 2011 NXP Semiconductors N.V. 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