DocumentationDatasheet
Reliability Data
Press Release
ltspice
- LTM4650-1 Demo Circuit - High Efficiency 4-Phase 100A Step-Down Regulator (4.5-15V to 1V @ 100A)
- LTM4650-1 Demo Circuit - High Efficiency 6-Phase 150A Step-Down Regulator (4.5-15V to 1V @ 150A)
- LTM4650-1 Demo Circuit - High Efficiency 8-Phase 200A Step-Down Regulator (4.5-15V to 1V @ 200A)
- LTM4650-1 Demo Circuit - High Efficiency Single 50A Step-Down Regulator (4.5-15V to 1V @ 50A)
LTpowerCAD
Features
- ±0.8% Maximum Total DC Output Error Over Line and Load (LTM4650-1A)
- ±3% Transient Output Error with Minimum Output Capacitance
- Dual 25A or Single 50A Output
- 4.5V to 15V Input, 0.6V to 1.8V Output Voltage Range
- Differential Remote Sense Amplifier
- Current Mode Control/Fast Transient Response
- Current Sharing Up to 300A
- 16mm × 16mm × 5.01mm BGA Package
Typical Application
Description
The LTM4650-1A/LTM4650-1B is dual 25A or single 50A output step-down µModule® (power module) regulator with ±0.8% (LTM4650-1A) and ±1.5% (LTM4650-1B) total DC output error with ±3% transient output error. Included in the package are the switching controller, power FETs, inductors, and all supporting components. External compensation allows for fast transient response to minimize output capacitance when powering FPGAs, ASICs, and processors. With synchronized multiphase parallel current sharing, six LTM4650-1 devices can deliver up to 300A. The LTM4650-1 is offered in a 16mm × 16mm × 5.01 BGA package, with SnPb (BGA) or RoHS compliant terminal finish.
| FEATURES | |
| LTM4650 | - |
| LTM4650-1 | ±3% Transient Output Error with Minimum Output Capacitance |
16mm × 16mm × 5.01mm BGA
Package Variations and Pricing
| Part Number | Package | Pins | Temp | Price (1-99) |
Price (1k)* |
|---|---|---|---|---|---|
| LTM4650EY#PBF | BGA | 144 | E | $66.79 | $46.75 |
| LTM4650IY#PBF | BGA | 144 | I | $73.46 | $51.42 |
| LTM4650IY | BGA | 144 | I | $89.91 | $62.94 |
| LTM4650IY-1B#PBF | BGA | 144 | I | $73.46 | $51.42 |
| LTM4650EY-1B#PBF | BGA | 144 | E | $66.79 | $46.75 |
| LTM4650EY-1A#PBF | BGA | 144 | E | $68.36 | $47.85 |
| LTM4650IY-1A#PBF | BGA | 144 | I | $75.19 | $52.63 |
| LTM4650IY-1A | BGA | 144 | I | $91.64 | $64.15 |
| LTM4650IY-1B | BGA | 144 | I | $89.91 | $62.94 |
Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.
| Part Number | Description | Price | Documentation |
|---|---|---|---|
| DC2378A-B | LTM4650-1 Demo Board | Single 50A/Dual 25A Buck µModule Regulator, 4.5V ≤ VIN ≤ 15V, Vout1/Vout2 = 0.9V/1.0V/1.2V/1.5V/1.8V @ 25A | $65.00 | |
| DC2455A-A | LTM4650-1 Demo Board | LTM4650-1 (x2) Buck µModule Regulator, 4.5V ≤ VIN ≤ 15V, Vout = 0.9V to 1.8V @ 100A | $105.00 | |
| DC2455A-B | LTM4650-1 Demo Board | LTM4650-1 (x3) Buck µModule Regulator, 4.5V ≤ VIN ≤ 15V, Vout = 0.9V to 1.8V @ 150A | $135.00 | |
| DC2455A-C | LTM4650-1 Demo Board | LTM4650-1 (x4) Buck µModule Regulator, 4.5V ≤ VIN ≤ 15V, Vout = 0.9V to 1.8V @ 200A | $165.00 | |
| DC2479A-B | LTM4650EY-1 Demo Board | Dual Phase Buck μModule Regulator, 4.5V ≤ VIN ≤ 15V, Vout = 0.6V to 1.8V @ 50A | $65.00 |