DC1198A-A: 12V @ 5A, 4.5 ~ 20V in
Summary
Demonstration circuit DC1198A-A features the LTM®4605EV, the high efficiency, high density switch mode buck-boost μModule® regulator. The LTM4605EV can regulate its output voltage from an input voltage above, below, or equal to the output. The input voltage range of DC1198A-A is from 4.5V to 20V with a preset output voltage of 12V. The rated load current is 5A, although derating is necessary for certain VIN, VOUT, and thermal conditions.
The switching frequency may be synchronized to an external clock from 200kHz to 400kHz. This PLL can be used not only to reduce undesirable frequency harmonics but also to parallel LTM4605 to provide high output current.
The LTM4605 data sheet must be read in conjunction with this demo manual prior to working on or modifying DC1198A-A.
The switching frequency may be synchronized to an external clock from 200kHz to 400kHz. This PLL can be used not only to reduce undesirable frequency harmonics but also to parallel LTM4605 to provide high output current.
The LTM4605 data sheet must be read in conjunction with this demo manual prior to working on or modifying DC1198A-A.
Specifications
| Manufacturer | Analog Devices Inc. |
|---|---|
| Category | AC/DC and DC/DC Conversion |
| Sub-Category | DC/DC SMPS - Single Output |
| Eval Board Part Number | DC1198A-A-ND |
| Eval Board Supplier | Analog Devices Inc. |
| Eval Board |
Board not Stocked
|
| Topology |
Step Up/Down
|
| Outputs and Type |
1 Non-Isolated
|
| Voltage Out: Factory Set |
12 V
|
| Current Out |
5 A
|
| Voltage In |
4.5 ~ 20 V
|
| Efficiency @ Conditions |
>95%, 12V in, 12V @ 1 ~ 12 A
>93%, 20V in, 12V @ 1 ~ 12 A >90%, 5V in, 12V @ 0.2 ~ 4.3 A |
| Voltage Out Range |
- Fixed
|
| Features |
Current Foldback Protection
Current Limit (Adj. or Fixed) Light Load Mode PFM or PWM Power Good Output |
| Switching Frequency |
300 kHz
|
| Standby Current [Typical] |
35 µA
|
| Quiescent Current [Typical] |
2.8 mA
|
| Component Count + Extras |
17 + 29
|
| Internal Switch |
Yes
|
| Design Author |
Linear Technology
|
| Application / Target Market |
Automotive
Servers Telecom |
| Standby Current [Maximum] |
60 µA
|
| Quiescent Current [Maximum] | |
| Main I.C. Base Part |
LTM4605
|
| Date Created By Author | 2011-01 |
| Date Added To Library | 2012-05 |
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