Datasheet Microchip MIC2169BYMME-TR The MIC2169B is a high-efficiency, simple to use 500kHz PWM synchronous buck control IC housed in a small MSOP-10 ePad package Datasheets- Download » Datasheet, PDF, 533 Kb, Revision: 11-05-2015
MIC2169B - 500kHz PWM Synchronous Buck Control IC
Docket ↓MIC2169B
500kHz PWM Synchronous Buck
Control IC General Description Features The MIC2169B is a high-efficiency, simple to use 500kHz
PWM synchronous buck control IC housed in small
MSOP-10 and MSOP-10 ePad packages. The MIC2169B
allows compact DC/DC solutions with a minimal external
component count and cost. The device features highoutput driver capability to drive loads up to 30A.
The MIC2169B operates from a 3V to 14.5V input, without
the need of any additional bias voltage. The output voltage
can be precisely regulated down to 0.8V. The adaptive all
N-Channel MOSFET drive scheme allows efficiencies over
95% across a wide load range within the smallest possible
printed circuit board space area.
The MIC2169B senses current across the high-side NChannel MOSFET, eliminating the need for an expensive
and lossy current-sense resistor. Current-limit accuracy is
maintained by a positive temperature coefficient that tracks
the increasing RDS(ON) of the external MOSFET. Further
cost and space are saved by the internal in-rush currentlimiting digital soft-start. The MIC2169B is identical to the
MIC2169A with the exception that the MIC2169B supports
pre-bias loads and has a lower impedance gate-drive
circuit. Internal pre-bias circuit prevents output voltage
drooping and excessive reverse inductor current when
powering up with a pre-bias voltage at the output. ...
PricesStatus| Lifecycle Status | Production (Appropriate for new designs but newer alternatives may exist) |
|---|
PackagingParametrics| Current Limit / Short Circuit Protection | True |
|---|
| Duty Cycle Max | 0.92 % |
|---|
| Enable Pin | True |
|---|
| Internal Voltage Bias | True |
|---|
| Iq Off | 50 µA |
|---|
| Maximum Input Voltage | 14.5 V |
|---|
| Minimum Input Voltage | 3 V |
|---|
| Minimum Output Voltage | 0.8 V |
|---|
| Operating Frequency | 500K Hz |
|---|
| Operating Supply Current | 1.5 mA |
|---|
| Operating Temperature Range | -40 to +125 °C |
|---|
| Soft Start | True |
|---|
| Supported Outputs | 1 |
|---|
| Supported Topologies | Sync. Buck |
|---|
| Typical Tolerance | В±1 % |
|---|
Eco PlanMoldel LineSeries: MIC2169B (4) Manufacturer's Classification- Power Management > PWM Controllers > Buck Products
Other Names:MIC2169BYMMETR, MIC2169BYMME TR Related datasheets: - Datasheet Micrel MIC95410YFL TR
- Datasheet MIC841HYC5 TR - Micrel COMPARATOR, ADJ THRESHOLD, 1.25%, 5SC70
- Datasheet MIC6270YM5 TR - Micrel COMPARATOR, 36 V, 0.6US, 5SOT23
- Datasheet MIC7211YM5 TR - Micrel COMPARATOR, RR, 10 V, 5US, 5SOT23
- Datasheet MIC833YM5 TR - Micrel COMPARATOR, ADJ HYSTERSIS, 5SOT23
|
|
