LP2985 具有关断状态的 150mA 低噪声低压降稳压器

LP2985 描述

The LP2985 family of fixed-output, low-dropout regulators offers exceptional, cost-effective performance for both portable and nonportable applications. Available in voltages of 1.8 V, 2.5 V, 2.8 V, 2.9 V, 3 V, 3.1 V, 3.3 V, 5 V, and 10 V, the family has an output tolerance of 1% for the A version (1.5% for the non-A version) and is capable of delivering 150-mA continuous load current. Standard regulator features, such as overcurrent and overtemperature protection, are included.

	LP2985	LP2985-18	LP2985-25	LP2985-28	LP2985-29	LP2985-33	LP2985-50	LP2985A-18	LP2985A-25	LP2985A-28	LP2985A-29	LP2985A-30	LP2985A-33	LP2985A-50
Iout(Max)(A)	0.15	0.15	0.15	0.15	0.15	0.15	0.15	0.15	0.15	0.15	0.15	0.15	0.15	0.15
Vdo(Typ)(mV)	280	280	280	280	280	280	280	280	280	280	280	280	280	280
Iq(Typ)(mA)	0.85	0.85	0.85	0.85	0.85	0.85	0.85	0.85	0.85	0.85	0.85	0.85	0.85	0.85
Vin(Min)(V)	2.05	2.05	2.5	2.5	2.5	2.5	2.5	2.05	2.5	2.5	2.5	2.5	2.5	2.5
Vin(Max)(V)	16	16	16	16	16	16	16	16	16	16	16	16	16	16
Vout(Min)(V)		1.8	2.5	2.8	2.9	3.3	5	1.8	2.5	2.8	2.9	3	3.3	5
Vout(Max)(V)		1.8	2.5	2.8	2.9	3.3	5	1.8	2.5	2.8	2.9	3	3.3	5
Accuracy(%)	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1	1	1	1	1	1	1
Output Capacitor(uF)	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7
Output Capacitor Type		Ceramic	Ceramic	Ceramic	Ceramic	Ceramic	Ceramic	Ceramic	Ceramic	Ceramic	Ceramic	Ceramic	Ceramic
Fixed Output Options(V)		1.8	2.5	2.8	2.9	3.3	5	1.8	2.5	2.8	2.9	3	3.3	5
Pin/Package		5SOT-23	5SOT-23	5SOT-23	5SOT-23	5DSBGA, 5SOT-23	5SOT-23	5SOT-23	5SOT-23	5SOT-23	5SOT-23	5SOT-23	5SOT-23	5SOT-23
Rating	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog
Regulated Outputs(#)	1	1	1	1	1	1	1	1	1	1	1	1	1	1

LP2985 特性

• Output Tolerance of
  • 1% (A Grade)
  • 1.5% (Standard Grade)
• Ultra-Low Dropout, Typically
  • 280 mV at Full Load of 150 mA
  • 7 mV at 1 mA
• Wide VIN Range: 16 V Max
• Low IQ: 850 uA at Full Load at 150 mA
• Shutdown Current: 0.01 uA Typ
• Low Noise: 30 uVRMS With 10-nF Bypass Capacitor
• Stable With Low-ESR Capacitors, Including Ceramic
• Overcurrent and Thermal Protection
• High Peak-Current Capability
• ESD Protection Exceeds JESD 22
  • 2000-V Human-Body Model (A114-A)
  • 200-V Machine Model (A115-A)
• PORTABLE APPLICATIONS
  • Cellular Phones
  • Palmtop and Laptop Computers
  • Personal Digital Assistants (PDAs)

LP2985 应用技术支持与电子电路设计开发资源下载

1. LP2985 数据资料 dataSheet 下载.PDF
2. TI 德州仪器LDO低压差线性稳压器驱动器选型与价格参考 . xls
3. Dual MOSFET Driver (PDF 498 KB)
4. 全面认识开关型电源中的BUCK-BOOST功率级 (Rev. A) (PDF 2206 KB)
5. LDO PSRR Measurement Simplified (PDF 140 KB)
6. LDO Noise Demystified (PDF 782 KB)
7. 标准线性产品交叉参考 (Rev. D) (PDF 1058 KB)
8. 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
9. 所选封装材料的热学和电学性质 (PDF 645 KB)
10. 高速数据转换 (PDF 1967 KB)