Datasheet LT3971, LT3971-3.3, LT3971-5 (Analog Devices) - 9
| Manufacturer | Analog Devices |
| Description | 38V, 1.2A, 2MHz Step-Down Regulator with 2.8μA Quiescent Current |
| Pages / Page | 28 / 9 — BLOCK DIAGRAM |
| File Format / Size | PDF / 643 Kb |
| Document Language | English |
BLOCK DIAGRAM
Model Line for this Datasheet
- LT3971EDD#PBF LT3971EDD#TRPBF LT3971EDD-3.3#PBF LT3971EDD-3.3#TRPBF LT3971EDD-5#PBF LT3971EDD-5#TRPBF LT3971EMSE#PBF LT3971EMSE#TRPBF LT3971EMSE-3.3#PBF LT3971EMSE-3.3#TRPBF LT3971EMSE-5#PBF LT3971EMSE-5#TRPBF LT3971EMSE16#PBF LT3971EMSE16#TRPBF LT3971IDD#PBF LT3971IDD#TRPBF LT3971IDD-3.3#PBF LT3971IDD-3.3#TRPBF LT3971IDD-5#PBF LT3971IDD-5#TRPBF LT3971IMSE#PBF LT3971IMSE#TRPBF LT3971IMSE-3.3#PBF LT3971IMSE-3.3#TRPBF LT3971IMSE-5#PBF LT3971IMSE-5#TRPBF LT3971IMSE16#PBF LT3971IMSE16#TRPBF
Text Version of Document
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
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
