LM1117:800mA 低压降线性稳压器

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The LM1117 is a low dropout voltage regulator with a dropout of 1.2 V at 800 mA of load current.

The LM1117 is available in an adjustable version, which can set the output voltage from 1.25 to 13.8 V with only two external resistors. In addition, it is available in five fixed voltages, 1.8 V, 2.5 V, 3.3 V, and 5 V.

The LM1117 offers current limiting and thermal shutdown. Its circuit includes a Zener trimmed bandgap reference to assure output voltage accuracy to within ±1%.

A minimum of 10-µF tantalum capacitor is required at the output to improve the transient response and stability.

产品特性
  • Available in 1.8 V, 2.5 V, 3.3 V, 5 V,
    and Adjustable Versions
  • Space-Saving SOT-223 and WSON Packages
  • Current Limiting and Thermal Protection
  • Output Current 800 mA
  • Line Regulation 0.2% (Maximum)
  • Load Regulation 0.4% (Maximum)
  • Temperature Range
    • LM1117: 0°C to 125°C
    • LM1117I: –40°C to 125°C
  • LM1117: 0°C to 125°C
  • LM1117I: –40°C to 125°C
参数parametrics
参数LM1117LMS8117A
Iout (Max) (A)0.81
Output OptionsAdjustable Output Fixed OutputAdjustable Output Fixed Output
Vin (Min) (V)2.62.5
Vin (Max) (V)1515
Fixed Output Options (V)1.8 2.5 3.3 51.8 3.3
Vout (Min) (V)1.251.5
Vout (Max) (V)13.813.75
Iq (Typ) (mA)55
Vdo (Typ) (mV)12001200
PSRR @ 100KHz (dB)47
Output Capacitor TypeTantalum
RatingCatalogCatalog
Operating Temperature Range (C)-40 to 125 0 to 1250 to 125
Pin/Package3DDPAK/TO-263 3TO-220 3TO-252 4SOT-223 8WSON3TO-252 4SOT-223
Approx. Price (US$)0.38 | 1ku0.41 | 1ku
数据表 (1)
标题类型大小 (KB)日期
LM1117 800-mA Low-Dropout Linear RegulatorPDF26972015年 12月 31日
应用手册 (12)
标题类型大小 (KB)日期
A Topical Index of TI LDO Application NotesPDF792015年 2月 12日
Linear power for automated industrial systemsPDF12442015年 1月 9日
AN-1028 Maximum Power Enhancement Techniques for Power PackagesPDF6842013年 5月 6日
AN-1148 Linear Regulators: Theory of Operation and CompensationPDF3002013年 5月 6日
AN-103 LM340 Series Three Terminal Positive RegulatorsPDF8142013年 5月 6日
AN-182 Improving Power Supply Reliability with IC Power RegulatorsPDF822013年 5月 5日
Method For Cal Output Voltage Tolerances in Adj RegsPDF2842013年 5月 5日
AN-181 3-Terminal Regulator is AdjustablePDF3142013年 5月 5日
AN-1482 LDO Regulator Stability Using Ceramic Output CapacitorsPDF1692013年 4月 25日
Packaging Limits Range of Linear RegulatorsPDF752010年 5月 8日
Digital Designer's Guide to Linear Voltage Regulators & Thermal Mgmt (LDO)PDF5092008年 6月 4日
Understanding the Terms and Definitions of LDO Voltage RegulatorsPDF1971999年 10月 21日
白皮书 (1)
标题类型大小 (KB)日期
Versatility of the LM5030 PWM Push-Pull ControllerPDF2692003年 12月 1日
模型 (12)
标题种类类型大小 (KB)日期
LM1117 Adjustable Unencrypted PSpice Transient ModelPSpice ModelZIP1 KB2015年 8月 17日
LM1117 ADJ PSpice Transient ModelPSpice ModelZIP61 KB2015年 8月 10日
LM1117 3P3 Unencrypted PSpice Transient ModelPSpice ModelZIP1 KB2015年 3月 25日
LM1117 3P3 PSpice Transient ModelPSpice ModelZIP60 KB2015年 3月 25日
LM1117 5P0 PSpice Transient ModelPSpice ModelZIP57 KB2015年 3月 25日
LM1117 5P0 Unencrypted PSpice Transient ModelPSpice ModelZIP1 KB2015年 3月 25日
LM1117 1P8 PSpice Transient ModelPSpice ModelZIP56 KB2015年 3月 25日
LM1117 1P8 Unencrypted PSpice Transient ModelPSpice ModelZIP1 KB2015年 3月 25日
LM1117 2P5 Unencrypted PSpice Transient ModelPSpice ModelZIP1 KB2015年 3月 25日
LM1117 2P5 PSpice Transient ModelPSpice ModelZIP61 KB2015年 3月 25日
LM1117 2P85 PSpice Transient ModelPSpice ModelZIP59 KB2015年 3月 25日
LM1117 2P85 Unencrypted PSpice Transient ModelPSpice ModelZIP1 KB2015年 3月 25日
设计套件与评估板 (1)
培训内容型号类型
采用 Pico 技术的紧凑型全高清 1080p(高达 16A)投影显示评估模块DLPDLCR4710EVM-G2评估模块和开发板
订购型号
型号试生产 / 生产材料状态替换日期温度(oC)价格(美元) | Quantity封装 | 引脚器件标记封装数量 | 载体
LM1117DT-1.8/NOPB生产ACTIVE0 to 1250.59 | 1kuTO-252 (NDP)LM1117 DT-1.875 | TUBE
LM1117DT-2.5/NOPB生产ACTIVE0 to 1250.59 | 1kuTO-252 (NDP)LM1117 DT-2.575 | TUBE
LM1117DT-3.3/NOPB生产ACTIVE0 to 1250.59 | 1kuTO-252 (NDP)LM1117 DT-3.375 | TUBE
LM1117DT-5.0/NOPB生产ACTIVE0 to 1250.59 | 1kuTO-252 (NDP)LM1117 DT-5.075 | TUBE
LM1117DT-ADJ/NOPB生产ACTIVE0 to 1250.59 | 1kuTO-252 (NDP)LM1117 DT-ADJ75 | TUBE
LM1117DTX-1.8/NOPB生产ACTIVE0 to 1250.49 | 1kuTO-252 (NDP)LM1117 DT-1.82500 | LARGE T&R
LM1117DTX-2.5/NOPB生产ACTIVE0 to 1250.49 | 1kuTO-252 (NDP)LM1117 DT-2.52500 | LARGE T&R
LM1117DTX-3.3/NOPB生产ACTIVE0 to 1250.49 | 1kuTO-252 (NDP)LM1117 DT-3.32500 | LARGE T&R
LM1117DTX-5.0/NOPB生产ACTIVE0 to 1250.49 | 1kuTO-252 (NDP)LM1117 DT-5.02500 | LARGE T&R
LM1117DTX-ADJ/NOPB生产ACTIVE0 to 1250.49 | 1kuTO-252 (NDP)LM1117 DT-ADJ2500 | LARGE T&R
LM1117IDT-3.3/NOPB生产ACTIVE-40 to 1250.59 | 1kuTO-252 (NDP)LM1117 IDT-3.375 | TUBE
LM1117IDT-5.0/NOPB生产ACTIVE-40 to 1250.59 | 1kuTO-252 (NDP)LM1117 IDT-5.075 | TUBE
LM1117IDT-ADJ/NOPB生产ACTIVE-40 to 1250.59 | 1kuTO-252 (NDP)LM1117 IDT-ADJ75 | TUBE
LM1117IDTX-3.3/NOPB生产ACTIVE-40 to 1250.49 | 1kuTO-252 (NDP)LM1117 IDT-3.32500
LM1117IDTX-5.0/NOPB生产ACTIVE-40 to 1250.49 | 1kuTO-252 (NDP)LM1117 IDT-5.02500
LM1117IDTX-ADJ/NOPB生产ACTIVE-40 to 1250.49 | 1kuTO-252 (NDP)LM1117 IDT-ADJ2500
LM1117ILD-ADJ/NOPB生产ACTIVE-40 to 1250.60 | 1kuWSON (NGN)1117IAD1000 | SMALL T&R
LM1117IMP-3.3/NOPB生产ACTIVE-40 to 1250.38 | 1kuSOT-223 (DCY)N05B1000 | LARGE T&R
LM1117IMP-5.0/NOPB生产ACTIVE-40 to 1250.38 | 1kuSOT-223 (DCY)N06B1000 | LARGE T&R
LM1117IMP-ADJ/NOPB生产ACTIVE-40 to 1250.38 | 1kuSOT-223 (DCY)N03B1000 | LARGE T&R
LM1117IMPX-3.3/NOPB生产ACTIVE-40 to 1250.38 | 1kuSOT-223 (DCY)N05B2000
LM1117IMPX-5.0/NOPB生产ACTIVE-40 to 1250.38 | 1kuSOT-223 (DCY)N06B2000
LM1117IMPX-ADJ/NOPB生产ACTIVE-40 to 1250.38 | 1kuSOT-223 (DCY)N03B2000
LM1117LD-1.8/NOPB生产ACTIVE0 to 1250.48 | 1kuWSON (NGN)1117-181000 | SMALL T&R
LM1117LD-2.5/NOPB生产ACTIVE0 to 1250.48 | 1kuWSON (NGN)1117-251000 | SMALL T&R
LM1117LD-3.3/NOPB生产ACTIVE0 to 1250.48 | 1kuWSON (NGN)1117-331000 | SMALL T&R
LM1117LD-ADJ/NOPB生产ACTIVE0 to 1250.48 | 1kuWSON (NGN)1117ADJ1000 | SMALL T&R
LM1117LDX-1.8生产NRNDLM1117LDX-1.8/NOPB0 to 1250.55 | 1kuWSON (NGN)1117-184500 | LARGE T&R
LM1117LDX-1.8/NOPB生产ACTIVE0 to 1250.48 | 1kuWSON (NGN)1117-184500 | LARGE T&R
LM1117LDX-ADJ/NOPB生产ACTIVE0 to 1250.48 | 1kuWSON (NGN)1117ADJ4500 | LARGE T&R
LM1117MP-1.8/NOPB生产ACTIVE0 to 1250.38 | 1kuSOT-223 (DCY)N12A1000 | LARGE T&R
LM1117MP-2.5/NOPB生产ACTIVE0 to 1250.38 | 1kuSOT-223 (DCY)N13A1000 | LARGE T&R
LM1117MP-3.3/NOPB生产ACTIVE0 to 1250.38 | 1kuSOT-223 (DCY)N05A1000 | LARGE T&R
LM1117MP-5.0/NOPB生产ACTIVE0 to 1250.38 | 1kuSOT-223 (DCY)N06A1000 | LARGE T&R
LM1117MP-ADJ/NOPB生产ACTIVE0 to 1250.38 | 1kuSOT-223 (DCY)N03A1000 | LARGE T&R
LM1117MPX-1.8/NOPB生产ACTIVE0 to 1250.38 | 1kuSOT-223 (DCY)N12A2000 | LARGE T&R
LM1117MPX-2.5/NOPB生产ACTIVE0 to 1250.38 | 1kuSOT-223 (DCY)N13A2000 | LARGE T&R
LM1117MPX-3.3生产ACTIVE0.46 | 1kuSOT-223 (DCY)N05A2000 | LARGE T&R
LM1117MPX-3.3/NOPB生产ACTIVE0 to 1250.38 | 1kuSOT-223 (DCY)N05A2000 | LARGE T&R
LM1117MPX-5.0/NOPB生产ACTIVE0 to 1250.38 | 1kuSOT-223 (DCY)N06A2000 | LARGE T&R
LM1117MPX-ADJ/NOPB生产ACTIVE0 to 1250.38 | 1kuSOT-223 (DCY)N03A2000 | LARGE T&R
LM1117S-ADJ/NOPB生产ACTIVE0 to 1250.71 | 1kuDDPAK/TO-263 (KTT)LM1117S ADJ45 | TUBE
LM1117SX-3.3/NOPB生产ACTIVE0 to 1250.59 | 1kuDDPAK/TO-263 (KTT)LM1117S 3.3500 | LARGE T&R
LM1117SX-5.0/NOPB生产ACTIVE0 to 1250.59 | 1kuDDPAK/TO-263 (KTT)LM1117S 5.0500 | LARGE T&R
LM1117SX-ADJ/NOPB生产ACTIVE0 to 1250.59 | 1kuDDPAK/TO-263 (KTT)LM1117S ADJ500 | LARGE T&R
LM1117T-2.5/NOPB生产ACTIVE0 to 1250.53 | 1kuTO-220 (NDE)LM1117T 2.545 | TUBE
LM1117T-3.3/NOPB生产ACTIVE0 to 1250.53 | 1kuTO-220 (NDE)LM1117T 3.345 | TUBE
LM1117T-5.0/NOPB生产ACTIVE0 to 1250.53 | 1kuTO-220 (NDE)LM1117T 5.045 | TUBE
LM1117T-ADJ/NOPB生产ACTIVE0 to 1250.53 | 1kuTO-220 (NDE)LM1117T ADJ45 | TUBE
LM1117 800-mA Low-Dropout Linear Regulator LM1117
A Topical Index of TI LDO Application Notes TPS54120
Linear power for automated industrial systems LMS1585A
AN-1028 Maximum Power Enhancement Techniques for Power Packages LM7812
AN-1148 Linear Regulators: Theory of Operation and Compensation LM7812
AN-103 LM340 Series Three Terminal Positive Regulators LM7812
AN-182 Improving Power Supply Reliability with IC Power Regulators LM309
Method For Cal Output Voltage Tolerances in Adj Regs LM309
AN-181 3-Terminal Regulator is Adjustable LM309
AN-1482 LDO Regulator Stability Using Ceramic Output Capacitors TL750L05
Packaging Limits Range of Linear Regulators LM7812
Digital Designer's Guide to Linear Voltage Regulators & Thermal Mgmt (LDO) LM7812
Understanding the Terms and Definitions of LDO Voltage Regulators LM7812
Versatility of the LM5030 PWM Push-Pull Controller LP2951-N
LM1117 Adjustable Unencrypted PSpice Transient Model LM1117
LM1117 ADJ PSpice Transient Model LM1117
LM1117 3P3 Unencrypted PSpice Transient Model LM1117
LM1117 3P3 PSpice Transient Model LM1117
LM1117 5P0 PSpice Transient Model LM1117
LM1117 5P0 Unencrypted PSpice Transient Model LM1117
LM1117 1P8 PSpice Transient Model LM1117
LM1117 1P8 Unencrypted PSpice Transient Model LM1117
LM1117 2P5 Unencrypted PSpice Transient Model LM1117
LM1117 2P5 PSpice Transient Model LM1117
LM1117 2P85 PSpice Transient Model LM1117
LM1117 2P85 Unencrypted PSpice Transient Model LM1117