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Power Management Chip

Depending on the technical accumulation and deep understanding of circuit topology and control strategy, the company defines and develops a variety of power management chips, covering the main controller, driver chip, auxiliary source chip and POL chip. The chips are with the features of MHz level multi-mode precise control and high frequency low delay high current drive capability, adopting WLCSP wafer-level package, which can greatly reduce the control circuit board area, solving the problem of high power integration and miniaturization,provide "core" support for the company's high-end module power supply what is completely made in China.

Control Chip

JR5010MQ JR5103 JR5104 JR5105

PFM Buck controller
Primary peak current sampling function
Over voltage protection, under voltage protection, over temperature protection

Output Voltage： 10~20V
Variable Frequency Control： 100Hz~1MHz
Drive Current Capability： ≥35mA
QFN Package： 4×4mm
Wide Operating Temperature Range： -55~125℃

Supports boost and buck control
Integrates four channels PWM signals
Supports multi-mode control
Integrates two low side drivers
Integrates auxiliary source control circuit

Variable Frequency Control： 1kHz~1.2MHz
Wide Operating Voltage Range： 5~18V
Large Drive Current Capability： 4A
WLCSP Package： 3.3×3.3mm
Wide Operating Temperature Range： -55~125℃

Designed for dual clamp ZVS topology
Integrates four channels PWM signals
Supports multi-mode control
Integrates two low side drivers

Variable Frequency Control： 1kHz~1MHz
Wide Operating Voltage Range： 5~18V
Large Drive Current Capability： 4A
WLCSP Package： 3.7×3.2mm
Wide Operating Temperature Range： -55~125℃

Designed for LLC soft switching topology
Supports adaptive control of drive circuit
Different protection modes can be configured
Integrates two low side drivers
Integrates auxiliary source control circuit

Variable Frequency Control： 1MHz-2.5MHz
Wide Operating Voltage Range： 10-20V
Large Drive Current Capability： 4A
WLCSP Package： 2.82x2.82mm
Wide Operating Temperature Range： -55~125℃

Driver Chip

JR4101 JR4102

Designed for Flyback topology
Accurate synchronous rectifier adaptive on/off control

Low Transmission Delay： ≤15ns
High Switching Frequency： 3.5MHz
Large Drive Current Capability： 3A
WLCSP Package： 2×1.5mm
Wide Operating Temperature Range： -55~125℃

Designed for Bridge topology
Precise synchronous rectifier on/off control
Dead time: 5~50ns

Maximum Half-Bridge Voltage： 400V
Low Transmission Delay： ≤30ns
High Switching Frequency： 2.5MHz
Large Drive Current Capability： 3A
WLCSP Package： 1.75×1.25mm
Wide Operating Temperature Range： -55~125℃

Auxiliary Source Chip

JR5164

Integrates synchronous rectifier MOSFET
Adopts COT mode control
Adjustable switching frequency, reaching up to 1MHz
No loop compensation element
Internal reference voltage：1.2 V

Wide Input Voltage Range： 6~100V
Output Current： 1A
No Load Input Current： 10μA
Shutdown Static Current： 3μA
WLCSP Package： 2×2mm
Operating Temperature： -55~125℃

POL Chip

Integrates step-down DC/DC converter

Integrates controller, power devices, inductor and passive components, external only a few filtering/holding capacitors and resistors are needed to construct a complete step-down DC/DC regulator.

Supports external frequency synchronization
Supports multi-phase connected in series or parallel
Six series, models complete
Pin-To-Pin compatible with similar competitors

Wide input voltage range： 4.5~16V
Adjustable output voltage： 0.6~5.5V
Maximum output current of a single chip： 50A

PRODUTCT TYPE

Type	Function	Input Voltage	Output Voltage	Output Current	Temperature	Package
JTM4650	Step-down DC/DC regulator	4.5~16V	0.6~5.5V	Single channel 50A or Two channel 25A	-40℃~125℃	BGA
JTM4644	Step-down DC/DC regulator	4.5~16V	0.6~5.5V	Single channel 16A or Two channel 4A	-40℃~125℃	BGA
JTM4620	Step-down DC/DC regulator	4.5~16V	0.6~5.5V	Single channel 26A or Two channel 13A	-40℃~125℃	LGA/BGA
JTM4630	Step-down DC/DC regulator	4.5~16V	0.6~5.5V	Single channel 36A or Two channel 18A	-40℃~125℃	LGA/BGA
JTM4628	Step-down DC/DC regulator	4.5~16V	0.6~5.5V	Single channel 16A or Two channel 8A	-40℃~125℃	LGA/BGA

Shanghai JARI Zhaoxin Information Technology Co., Ltd.