The JTMA3048 IC combines a Dual synchronous Buck controller

1.产品概述 2.产品特点 3.应用范围 4.技术规格书下载（产品PDF文档）
5.产品封装图 6.电路原理图 7.功能概述 8.相关产品

一,产品概述(General Description)

The JTMA3048 IC combines a Dual synchronous Buck controller and a linear regulator controller,
providing a cost-ffective, high performance and flexible solution for multi-output applications. The Dual
synchronous controller is configured as 2-independent PWM controller. JTMA3048 provides a separate
adjustable output by driving a switch as a linear regulator. This device features an internal 200KHz
oscillator, under-voltage lockout for all input supplies, an external programmable soft start function as
well as output under-voltage detection that latches off the device when an output short is detected.
二.产品特点(Features)

LDO Controller with 40mA drive
Dual Synchronous Controller in 16-Pin Package
with 180o out-of-phase operation
Configured as 2-Independent PWM Controller
Flexible, Same or Separate Supply Operation
Operation from 4V to 25V Input
Internal 200KHz Oscillator
Soft-Start controls all outputs
Fixed Frequency Voltage Mode
500mA Peak Output Drive Capability
Programmable Outputs
RoHS Compliant & Halogen Free Product
三,应用范围 (Applications)

DDR Memory Source Sink Vtt Application
Graphic Card
Hard Disk Drive
Power supplies requiring multiple outputs
四.技术规格书下载（产品PDF）

JTMA3048

五,产品封装图 (Package)

六.电路原理图

七,功能概述

Vcc Supply Voltage .................................................. 25V
VcH1=VcH2 Supply Voltage ...................................... 30V (not rated for inductive load)
Storage Temperature Range ...................................... -65°C To 150°C
Operating Junction Temperature Range ..................... 0°C To 125°C
八,相关芯片选择指南

Power IC-DDR & Reset
Part Number	Package	Vin(typ)	Vin (max)	Max. Current (A)	Current Limit (A)	Quiescent Current Typ. (uA)
JTMA1210MP	ESOP-8	1.1/1.4/2.5	6	2.5	3	0.05
JTMA1270AMP	ESOP-8	1.5/1.8/2.5	6	2.5	3.2	0.05
JTMA1280AMP	ESOP-8	1.5/1.8/2.5	6	2	2.2	0.05
JTMA6800Y	SOT-26	1.65~5.5
JTMA6800GN15B	DFN-1.5X2-6L	1.65~5.5
JTMA3146O	TSSOP-28
JTMA3048O	TSSOP-16
JTMA3048M	SOP-16

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