LTC3624/LTC3624-2 - 17V, 2A Synchronous Step-Down Regulator with 3.5μA Quiescent Current
The LTC®3624/LTC3624-2 is a high efficiency 17V, 2A synchronous monolithic step-down regulator. The switching frequency is fixed to 1MHz (LTC3624) or 2.25MHz (LTC3624-2) with a ±40% synchronization range. The regulator features ultralow quiescent current and high efficiency over a wide VOUT range.
The step-down regulator operates from an input voltage range of 2.7V to 17V and provides an adjustable output range from 0.6V to VIN while delivering up to 2A of output current. A user-selectable mode input is provided to allow the user to trade off ripple noise for light load efficiency; Burst Mode operation provides the highest efficiency at light loads, while pulse-skipping mode provides the lowest voltage ripple. The MODE pin can also be used to sync the switching frequency to an external clock.
LTC3624/LTC3624-2 Options
Features
Typical Application  | Applications
Packaging  |
| Part Number | Package | Temp | Price(1-99) | Price (1k)* |
|---|---|---|---|---|
| LTC3624EDD-2#PBF | 3x3 DFN-8 | E | $4.22 | $2.95 |
| LTC3624EDD-2#TRPBF | 3x3 DFN-8 | E | $3.01 | |
| LTC3624EDD-23.3#PBF | 3x3 DFN-8 | E | $4.22 | $2.95 |
| LTC3624EDD-23.3#TRPBF | 3x3 DFN-8 | E | $3.01 | |
| LTC3624EDD-25#PBF | 3x3 DFN-8 | E | $4.22 | $2.95 |
| LTC3624EDD-25#TRPBF | 3x3 DFN-8 | E | $3.01 | |
| LTC3624EDD-3.3#PBF | 3x3 DFN-8 | E | $4.22 | $2.95 |
| LTC3624EDD-3.3#TRPBF | 3x3 DFN-8 | E | $3.01 | |
| LTC3624EDD-5#PBF | 3x3 DFN-8 | E | $4.22 | $2.95 |
| LTC3624EDD-5#TRPBF | 3x3 DFN-8 | E | $3.01 | |
| LTC3624EDD#PBF | 3x3 DFN-8 | E | $4.22 | $2.95 |
| LTC3624EDD#TRPBF | 3x3 DFN-8 | E | $3.01 | |
| LTC3624EMSE-2#PBF | MS-12E | E | $4.22 | $2.95 |
| LTC3624EMSE-2#TRPBF | MS-12E | E | $3.01 | |
| LTC3624EMSE-23.3#PBF | MS-12E | E | $4.22 | $2.95 |
| LTC3624EMSE-23.3#TRPBF | MS-12E | E | $3.01 | |
| LTC3624EMSE-25#PBF | MS-12E | E | $4.22 | $2.95 |
| LTC3624EMSE-25#TRPBF | MS-12E | E | $3.01 | |
| LTC3624EMSE-3.3#PBF | MS-12E | E | $4.22 | $2.95 |
| LTC3624EMSE-3.3#TRPBF | MS-12E | E | $3.01 | |
| LTC3624EMSE-5#PBF | MS-12E | E | $4.22 | $2.95 |
| LTC3624EMSE-5#TRPBF | MS-12E | E | $3.01 | |
| LTC3624EMSE#PBF | MS-12E | E | $4.22 | $2.95 |
| LTC3624EMSE#TRPBF | MS-12E | E | $3.01 | |
| LTC3624HMSE-2#PBF | MS-12E | H | $5.00 | $3.50 |
| LTC3624HMSE-2#TRPBF | MS-12E | H | $3.56 | |
| LTC3624HMSE-23.3#PBF | MS-12E | H | $5.00 | $3.50 |
| LTC3624HMSE-23.3#TRPBF | MS-12E | H | $3.56 | |
| LTC3624HMSE-25#PBF | MS-12E | H | $5.00 | $3.50 |
| LTC3624HMSE-25#TRPBF | MS-12E | H | $3.56 | |
| LTC3624HMSE-3.3#PBF | MS-12E | H | $5.00 | $3.50 |
| LTC3624HMSE-3.3#TRPBF | MS-12E | H | $3.56 | |
| LTC3624HMSE-5#PBF | MS-12E | H | $5.00 | $3.50 |
| LTC3624HMSE-5#TRPBF | MS-12E | H | $3.56 | |
| LTC3624HMSE#PBF | MS-12E | H | $5.00 | $3.50 |
| LTC3624HMSE#TRPBF | MS-12E | H | $3.56 | |
| LTC3624IDD-2#PBF | 3x3 DFN-8 | I | $4.64 | $3.25 |
| LTC3624IDD-2#TRPBF | 3x3 DFN-8 | I | $3.31 | |
| LTC3624IDD-23.3#PBF | 3x3 DFN-8 | I | $4.64 | $3.25 |
| LTC3624IDD-23.3#TRPBF | 3x3 DFN-8 | I | $3.31 | |
| LTC3624IDD-25#PBF | 3x3 DFN-8 | I | $4.64 | $3.25 |
| LTC3624IDD-25#TRPBF | 3x3 DFN-8 | I | $3.31 | |
| LTC3624IDD-3.3#PBF | 3x3 DFN-8 | I | $4.64 | $3.25 |
| LTC3624IDD-3.3#TRPBF | 3x3 DFN-8 | I | $3.31 | |
| LTC3624IDD-5#PBF | 3x3 DFN-8 | I | $4.64 | $3.25 |
| LTC3624IDD-5#TRPBF | 3x3 DFN-8 | I | $3.31 | |
| LTC3624IDD#PBF | 3x3 DFN-8 | I | $4.64 | $3.25 |
| LTC3624IDD#TRPBF | 3x3 DFN-8 | I | $3.31 | |
| LTC3624IMSE-2#PBF | MS-12E | I | $4.64 | $3.25 |
| LTC3624IMSE-2#TRPBF | MS-12E | I | $3.31 | |
| LTC3624IMSE-23.3#PBF | MS-12E | I | $4.64 | $3.25 |
| LTC3624IMSE-23.3#TRPBF | MS-12E | I | $3.31 | |
| LTC3624IMSE-25#PBF | MS-12E | I | $4.64 | $3.25 |
| LTC3624IMSE-25#TRPBF | MS-12E | I | $3.31 | |
| LTC3624IMSE-3.3#PBF | MS-12E | I | $4.64 | $3.25 |
| LTC3624IMSE-3.3#TRPBF | MS-12E | I | $3.31 | |
| LTC3624IMSE-5#PBF | MS-12E | I | $4.64 | $3.25 |
| LTC3624IMSE-5#TRPBF | MS-12E | I | $3.31 | |
| LTC3624IMSE#PBF | MS-12E | I | $4.64 | $3.25 |
| LTC3624IMSE#TRPBF | MS-12E | I | $3.31 |
Demo Boards
| Part Number | Description | Price |
|---|---|---|
| DC2005A | LTC3624 Demo Board (DFN) | Micropower Sync Buck, 2.7V ≤ VIN ≤ 17V, Vout = 1.2V/1.8V/2.5V/3.3V/5V/Adj @ 2A | $150.00 |
| DC2359A | LTC3624 Demo Board (MSOP) | Micropower Sync Buck, 2.7V ≤ VIN ≤ 17V, Vout = 1.2V/1.8V/2.5V/3.3V/5V @ 2A | Contact Factory |
- 17V、2.25MHz、同步降压型稳压器可提供 2A 电流而静态电流仅为 3.5µA
- R539 - Reliability Data
- High Efficiency 17V, 2A Synchronous Monolithic Step-Down Regulator with Ultralow Quiescent Current in a 3mm × 3mm DFN
- 17V, 2.25MHz, Synchronous Step-Down Regulator Delivers 2A & Requires Only 3.5µA of Quiescent Current
- LTC3624 Footprints and Symbols
- LTC3624 Demo Circuit - High Efficiency Buck Regulator with Ultralow Quiescent Current (5.6-17V to 5V @ 2A)
- LTC3624 Demo Circuit - High Efficiency Buck Regulator with Ultralow Quiescent Current (5.6-17V to 5V @ 2A)
- LTC3624-2 Demo Circuit - High Efficiency Buck Regulator with Ultralow Quiescent Current (5.6-17V to 5V @ 2A)
- LTC3624 Project - 2A, 17V, 1MHz Buck Regulator (2.7-17V to 2.5V @ 2A)
- LTC3624 Project - µPower Monolithic Synchronous Buck Regulator (2.7-17V to 1.8V @ 2A)
