Product
The DT4201 is a 5V PMU comprised of two high-efficiency 1.5A synchronous buck DC-DC converters. The DT4201 operates from an input voltage range of 2.5V to 5.5V and provides two separate outputs voltage from 0.6V to VIN-0.3V, making the device ideal for low voltage power conversions. Operating at a fixed frequency of 1.5MHz allows the use of small external components, such as ceramic input and output caps, as well as small inductors, while still providing low output ripples. Internal soft-start control circuitry reduces inrush current. Under-voltage Lockout, Short-circuit and thermal-overload protection improves design reliability. The DT4201 is available in ESOP8 package.GENERAL DESCRIPTION
The DT4201 is a 5V PMU comprised of two high-efficiency 1.5A synchronous buck DC-DC converters.
The DT4201 operates from an input voltage range of 2.5V to 5.5V and provides two separate outputs voltage from 0.6V on, making the device ideal for low voltage power conversions. Operating at a fixed frequency of 1.5MHz allows the use of small external components, such as ceramic input and output caps, as well as small inductors, while still providing low output ripples.
Internal soft-start control circuitry reduces inrush current. Under-voltage Lockout, Short-circuit and thermal-overload protection improves design reliability.
The DT4201 is available in ESOP8 package.
FEATURES
|
APPLICATIONS
|
TYPICAL APPLICATION CIRCUIT
|
PIN ASSIGNMENT
|
PIN DESCRIPTION
|
PIN No |
SYMBOL |
DESCRIPTTION |
|
1 |
VIN1 |
Power Supply Input 1 |
|
2 |
SW1 |
Switching Output of Channel 1 |
|
3 |
VIN2 |
Power Supply Input 2 |
|
4 |
SW2 |
Switching Output of Channel 2 |
|
5 |
EN2 |
Chip Enable of Channel 2 |
|
6 |
FB2 |
Feedback of Channel 2 |
|
7 |
EN1 |
Chip Enable of Channel 1 |
|
8 |
FB1 |
Feedback of Channel 1 |
| 9 | GND | Ground |
ABSOLUTE MAXIMUM RATINGS (Note 1)
|
SYM |
PARAMETER |
VALUE |
Units |
|
VIN |
Input supply voltage |
6.5 |
V |
|
VIO |
Other IO Pins |
6.5 |
V |
|
PD |
Maximum Power Dissipation, SOP8 |
1.38 |
W |
|
PTR |
Package Thermal Resistance, SOP8(θJAï¼?/p> |
90 |
oC /W |
|
Tj |
Maximum Junction Temperature |
125 |
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|
Ts |
Storage Temperature Range |
-65 to 150 |
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|
TLead |
Lead Temperature, soldering, 10Sec |
260 |
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RECOMMENDED OPERATING RANGE (Note 2)
|
SYMBOL |
PARAMETER |
VALUE |
Units |
|
VCC |
Input supply voltage |
-0.3 to +5.5 |
V |
|
Tj |
Junction Temperature |
-40 to +85 |
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Note1: Absolute Maximum Ratings are threshold limit values that must not be exceeded even for an instant under any condition. Moreover, such values for any two items must not be reached simultaneously. Operation above these absolute maximum ratings may cause degradation or permanent damage to the device. These are stress ratings only and do not necessarily imply functional operation below these limits.
Note 2: Recommended operating Range indicates conditions for which the device is functional, but does not guarantee specific performance limits.