DC-DC Controller. CN5136 Datasheet

CN5136 Controller. Datasheet pdf. Equivalent


CONSONANCE CN5136
如韵电子 CONSONANCE
500 mA PFM Step-Up DC-DC Controller
CN5136
General Description
CN5136 is a high-efficiency pulse frequency
modulation (PFM) DC-DC converter, and the
maximum output current capability is up to
500mA. CN5136 has an on-chip power transistor,
thus greatly reduces the external component count.
Other features include the maximum inductor
current limit, soft-start circuit.
CN5136 output voltage can be set by external
resistors. High accuracy on-chip voltage reference
ensures the accuracy of the output voltage and low
temperature drift.
CN5136 can operate from the voltage of 2.7V to
6V, which is very suitable for lithium and three
nickel-metal hydride battery-powered
applications.
The device is available in 5 pin SOT23 package
and is fully specified over the -40°C to +85°C
extended temperature range.
Applications
Mobile power
PDA and other portable products
Electric toys
Computer peripheral products
Features
Operating voltage range2.7V to 6V
Integrated power transistor
Maximum inductor current limit function
Output voltage can be set by external resistor
Output voltage accuracy:±2%
High efficiency: 90%
On-chip soft-start circuit
Operating Temperature Range
-40°C to +85°C
Available in SOT23-5
Pb-free
Pin Assignment
www.consonance-elec.com
Rev 0
1


CN5136 Datasheet
Recommendation CN5136 Datasheet
Part CN5136
Description 500mA PFM Step-Up DC-DC Controller
Feature CN5136; CONSONANCE 500 mA PFM Step-Up DC-DC Controller CN5136 General Description CN5136 is a high-effici.
Manufacture CONSONANCE
Datasheet
Download CN5136 Datasheet




CONSONANCE CN5136
Typical Application Circuit
Figure 1 Typical Application Circuit
Block Diagram
Figure 2 Block Diagram
Rev 0
2



CONSONANCE CN5136
Ordering Information
Part No.
CN5136
Mark
5136
Pin Description
Pin No.
Symbol
1 Lx
2 VDD
3 GND
4 test
5 FB
Package
SOT23-5
Operating Ambient Temperature
40to 85
Description
Inductor Connection. This pin is connected to the drain of
N-channel MOS transistor in device.
Positive Terminal of Power Supply.
GND.
Test pin. This pin should be tied to ground.
Voltage Feedback Pin. The output voltage is sampled and
feedback to this pin.
ABSOLUTE MAXIMUM RATINGS
Terminal Voltage (With respect to GND)
VDD..............…...…......-0.3V to +6.5V
Other terminal voltage………....-0.3V to VDD
Maximum Junction Temperature.......... 150°C
Thermal Resistance…………………..300°C/W
Operating Temperature.…..……...-40 to +85°C
Storage Temperature.......…….......-65 to +150°C
Lead Temperature (soldering, 10s) .......+260°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the
device. These are stress ratings only, and functional operation of the device at these or any other
conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure
to absolute maximum rating conditions for extended periods may affect device reliability.
Rev 0
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