The RT6208 is a high-efficiency, monolithic synchronous step-down DC/DC converter that can deliver up to 100mA output current from a 4.5V to 36V input supply. It requires only 25µA typical supply current at no load while maintaining output voltage regulation. The RT6208 achieves Boundary Conduction Mode (BCM) operation, low quiescent current and programmable high-side peak current limit, providing high efficiency over a wide range of load currents. It also provides soft-start protection to eliminate input current surge during start-up. The low current (3µA) shutdown mode provides output disconnect, enabling easy power management in battery-powered systems. The RT6208 is available in a SOT-23-6, SOT-23-8 and SOP-8 (Exposed Pad, with power good function) packages.
Product Features:
Achieves Very High Efficiency in Low Load Conditions
±1% High Accuracy Feedback Voltage
4.5V to 36V Input Voltage Range
100mA Output Current
Integrated High-Side and Low-Side Switches
No Compensation Required
| Manufacturer | Richtek USA Inc. |
|---|---|
| Category | AC/DC and DC/DC Conversion |
| Sub-Category | DC/DC SMPS - Single Output |
| Eval Board Part Number | EVB_RT6208GE-ND |
| Eval Board Supplier | Richtek USA Inc. |
| Eval Board |
Board not Stocked
|
| Topology |
Step Down
|
| Outputs and Type |
1 Non-Isolated
|
| Voltage Out: Factory Set |
1.8 V
3.3 V 5 V |
| Current Out |
100 mA
|
| Voltage In |
4.5 ~ 36 V
|
| Efficiency @ Conditions |
>85%, 36V in, 5V @ 40 ~ 100 mA
>85%, 24V in, 5V @ 10 ~ 100 mA >85%, 12V in, 5V @ 3 ~ 100 mA >80%, 36V in, 3.3V @ 11 ~ 100 mA >80%, 24V in, 3.3V @ 5 ~ 100 mA >80%, 12V in, 3.3V @ 2 ~ 100 mA |
| Voltage Out Range |
0.8 ~ 5 V
|
| Features |
Current Limit (Adj. or Fixed)
Power Good Output Soft Start Thermal Protection Under Voltage Protection, Brown-Out |
| Switching Frequency |
- Not Given
|
| Standby Current [Typical] |
25 µA
|
| Quiescent Current [Typical] |
160 µA
|
| Component Count + Extras |
13 + 16
|
| Internal Switch |
Yes
|
| Design Author |
Richtek USA Inc.
|
| Application / Target Market |
Battery Chargers
Point of Load (PoL) Power: Industrial Power White Goods |
| Standby Current [Maximum] |
40 µA
|
| Quiescent Current [Maximum] |
190 µA
|
| Main I.C. Base Part |
RT6208
|
| Date Created By Author | 2016-05 |
| Date Added To Library | 2018-10 |