DC1889A: 0.6 ~ 5.5V @ 4A, 4 ~ 14V in
Summary
Demonstration circuit 1889A features the LTM®4624EY μModule regulator, a tiny high performance high efficiency step-down regulator.
The LTM4624EY has an operating input voltage range of 4V to 14V and is able to provide an output current of up to 4A. The output voltage is programmable from 0.6V to 5V.
The LTM4624EY is a complete DC-DC point of load regulator in a thermally enhanced 6.25mm x 6.25mm x 5.01mm BGA package requiring only a few input and output capacitors. Output voltage tracking is available through the TRACK/SS pin for supply rail sequencing.
The LTM4624 datasheet must be read in conjunction with this demo manual for working on or modifying demo circuit 1889A.
The LTM4624EY has an operating input voltage range of 4V to 14V and is able to provide an output current of up to 4A. The output voltage is programmable from 0.6V to 5V.
The LTM4624EY is a complete DC-DC point of load regulator in a thermally enhanced 6.25mm x 6.25mm x 5.01mm BGA package requiring only a few input and output capacitors. Output voltage tracking is available through the TRACK/SS pin for supply rail sequencing.
The LTM4624 datasheet must be read in conjunction with this demo manual for working on or modifying demo circuit 1889A.
Specifications
| Manufacturer | Analog Devices Inc. |
|---|---|
| Category | AC/DC and DC/DC Conversion |
| Sub-Category | DC/DC SMPS - Single Output |
| Eval Board Part Number | 505-DC1889A-ND |
| Eval Board Supplier | Analog Devices Inc. |
| Eval Board |
Normally In Stock
|
| Topology |
Step Down
|
| Outputs and Type |
1 Non-Isolated
|
| Voltage Out: Factory Set |
1 V
1.2 V 1.5 V 1.8 V 2.5 V 3.3 V 5 V |
| Current Out |
4 A
|
| Voltage In |
4 ~ 14 V
|
| Efficiency @ Conditions |
>90%, 5V in, 3.3V @ 0.2 ~ 4 A
>90%, 5V in, 2.5V @ 0.3 ~ 3.2 A >90%, 12V in, 5V @ 1 ~ 4 A >85%, 5V in, 1V @ 0.5 ~ 2.1 A >85%, 5V in, 1.5V @ 0.3 ~ 3.4 A >85%, 5V in, 1.2V @ 0.4 ~ 2.7 A >85%, 12V in, 3.3V @ 0.7 ~ 4 A >85%, 12V in, 2.5V @ 0.8 ~ 4 A >80%, 12V in, 1V @ 1.1 ~ 2.4 A >80%, 12V in, 1.5V @ 0.7 ~ 4 A >80%, 12V in, 1.2V @ 0.9 ~ 3.4 A |
| Voltage Out Range |
0.6 ~ 5.5 V
|
| Features |
Current Limit (Adj. or Fixed)
Over Current Protection Over Voltage Protection Power Good Output Shutdown, Enable, Standby Soft Start Thermal Protection Under Voltage Protection, Brown-Out Voltage Tracking |
| Switching Frequency |
1 MHz
|
| Standby Current [Typical] |
11 µA
|
| Quiescent Current [Typical] |
2 mA
|
| Component Count + Extras |
10 + 49
|
| Internal Switch |
Yes
|
| Design Author |
Linear Technology
|
| Application / Target Market |
Factory Automation
Medical Memory Back-up Telecom |
| Standby Current [Maximum] |
- Not Given
|
| Quiescent Current [Maximum] |
6 mA
|
| Main I.C. Base Part |
LTM4624
|
| Date Created By Author | 2013-04 |
| Date Added To Library | 2013-10 |
