Datasheet LT3971, LT3971-3.3, LT3971-5 (Analog Devices) - 9
制造商 | Analog Devices |
描述 | 38V, 1.2A, 2MHz Step-Down Regulator with 2.8μA Quiescent Current |
页数 / 页 | 28 / 9 — BLOCK DIAGRAM |
文件格式/大小 | PDF / 643 Kb |
文件语言 | 英语 |
BLOCK DIAGRAM
该数据表的模型线
文件文字版本
LT3971/LT3971-3.3/LT3971-5
BLOCK DIAGRAM
VIN VIN – C1 INTERNAL 1.19V REF + BD 1V + SWITCH Σ SLOPE COMP LATCH – SHDN EN BOOST R OSCILLATOR C3 Q 200kHz TO 2MHz RT R S L1 T VOUT SW Burst Mode SYNC DETECT D1 C2 PG ERROR AMP V + 1.09V + C CLAMP VC 1µA – – C5 SS SHDN R3 R2 R1 C4 GND FB VOUT LT3971-3.3 LT3971-5 R2 R1 ONLY 3991 BD LT3971 LT3971-3.3: R1 = 6.39M, R2 = 3.61M ONLY C5 LT3971-5: R1 = 7.62M, R2 = 2.38M 3971fd 9 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Related Parts