The JTM1542 is a compact, high efficiency, and lowvoltage st

1.产品概述         2.产品特点
3.应用范围    4.产品封装图
5.电路原理图             6.产品PCB
7.产品BOM 8.产品PDF文档
9.功能概述 10.相关产品

一,产品概述(General Description)
       The JTM1542 is a compact, high efficiency, and lowvoltage step-up DC/DC converter including an error amplifier, ramp generator, comparator, switch pass
element and driver in which providing a stable andhigh efficient operation over a wide range of load currents. It operates in stable waveforms without
external compensation.
    The low start-up input voltage below 1.6V. The high switching rate minimized the size of external components. Besides, the 19 A low quiescent current together with high efficiency maintains long battery lifetime.
The output voltage is set with two external resistors
二.产品特点(Features)

Output up to 24V
Internal MOS FET with high switch current up to 3A
19μA Quiescent (Switch-off) Supply Current
Zero Shutdow
Mode Supply Current
90% Efficiency
Up to 450KHz Switching Frequency
Using Internal Power Switches
SOT-23-6 Package

三,应用范围 (Applications)

PDA
Description
DSC
LCD Panel
RF-Tags
MP3
Portable Instrument
Wireless Equipment

四,产品封装图 (Package)

PIN NUMBER SOT-23-6	PIN NAME	FUNCTION
1	GND	Ground
2	SW	Switch Output
3	SOE	Source of the MOSFET
4	FB	Feedback
5	VDD	Output
6	EN	ON/OFF Control(High Enable)

五,电路原理图

Figure 1 (1.8V Stat-up input Voltage)
RX can be a Zener Diodes or Resistor: The Ratio of RX/RVDD must to keep VDD voltage less than 5.5V.

The resistor RM can be set to 50musually.

六, 产品PCB
(略)
七.产品BOM
(略)
八.产品PDF文档

jtm1542

九,功能概述

Absolute Maximum Ratings Suppl Voltage………….…−0.3V to 6V

SW Pin Switch Voltage……………………………−0.3V to 28V

Other I/O Pin Voltages………………………−0.3V to 6V

SW Pin Switch Current ………………...………………..3A

Operating Junction Temperature……………….……………..125°C

S t o r a g e T e m p e r a t u r e R a n g e … … … … … . − 6 5 °C ~ + 1 5 0 °C

十,相关产品`

单P沟道低压MOS场效应管

型号	沟道	VDS	VGS	VTH	ID	IDM	RDS(on)	封装	状态	直接替代型号
		(Max)			(Max)		(Max)
HM2301/A	P沟道	-20V	-10V	-0.7V	-3A	-10A	65mΩ	SOT23	量产	Si2301/AP2301/SI2305/XP152A/
								SOT23-3L		IRLML6401/IRML6402/AO3423
HM2301B	P沟道	-20V	-12V	-0.7V	-2.8A	-10A	83mΩ	SOT23	量产	Si2301/AP2301/XP152A/
										IRLML6402/AO3423
HM2301C	P沟道	-12V	-12V	-0.7V	-2.8A	-10A	85mΩ	SOT23	量产	Si2301/AP2301/XP152A/
										IRLML6402/AO3423
HM2305	P沟道	-20V	-12V	-0.7V	-4.1A	-15A	39mΩ	SOT23	量产	Si2305/AP2305/APM2305/
										IRLML6401/IRML6402/AO3423
HM2333	P沟道	-12V	-12V	0.32V	6A	20A	30mΩ	SOT23-3L	量产	Si2333/IRLML6302
HM2341/B	P沟道	-30V	-20V	-1V	-4.2A	-30A	50mΩ	SOT23-3L	量产	WPM2341/Si2341/AO3401
								SOT23		AO3415/IRLML6401/SI2307
HM3401/B	P沟道	-30V	-20V	-1V	-4.2A	-30A	50mΩ	SOT23-3L	量产	AO3401/AO3415/IRLML6401
								SOT23		/IRLML6402/SI2307
HM3401C	P沟道	-30V	-20V	-1.6V	-2.5A	-10A	72mΩ	SOT23	量产	AO3401/AO3407/AO3415/
										IRLML6401/IRLML6402/SI2307
HM3407/B	P沟道	-30V	-20V	-1.5V	-4.2A	-20A	55mΩ	SOT23-3L	量产	AO3407/AO3415/IRLML6401
								SOT23		IRLML6402/SI2307
HM3413/B	P沟道	-20V	-12V	-0.7V	-2.5A	-10A	118mΩ	SOT23-3L	量产	AO3413
								SOT23
HM3415E	P沟道	-20V	-10V	-0.65V	-4.0A	-30A	34mΩ	SOT23-3L	量产	AO3415
	带ESD保护
HM3421/B	P沟道	-30V	-20V	-1V	-4.2A	-30A	50mΩ	SOT23-3L	量产	AO3421/AO3401/AO3415
								SOT23		WPM2341/IRLML6401/SI2307
HM2319	P沟道	-40V	-20V	-1.5V	-5.3A	-20A	73mΩ	SOT-23-3L	量产	Si2319
HM2309	P沟道	-60V	-20V	-1.0V	-1.8A	-7A	170mΩ	SOT-23-3L	量产	Si2309
HM6401	P沟道	-30V	-20V	-1V	-5.0A	-30A	50mΩ	SOT23-6L	量产	AO6401/Si3481/APM2605/AO6405
										Si3455/SI3457/FDC634P/FDC636P
HM9435	P沟道	-30V	-20V	-1.6V	-5.1A	-20A	48mΩ	SOP8	量产	CEM9435/APM9435/AP9435/
										Si9435/FDS9435/AO4405
HM9435B	P沟道	-20V	-10V	-0.7V	-5A	-20A	60mΩ	SOP8	量产	CEM9435/APM9435/AP9435/
										Si9435/FDS9435/AO4405
HM4435	P沟道	-30V	-20V	-1.5V	-9.1A	-50A	15mΩ	SOP8	量产	AO4435/CEM4435/APM4435/
										AP4435/Si4435/FDS4435
HM4407	P沟道	-30V	-20V	-1.65V	-12A	-60A	14mΩ	SOP8	量产	AO4407/CEM4407/APM4407/
										AP4407/Si4407/FDS4407
HM4409	P沟道	-30V	-20V	-1.75V	-15A	-80A	8mΩ	SOP8	量产	AO4409/AO4407/AO4435/CEM4435
										APM4435/AP4435/Si4435/FDS4435
HM4443	P沟道	-40V	-20V	-1.5V	-6A	-24A	73mΩ	SOP8	量产	AO4443
										IRF7241
HM4485	P沟道	-40V	-20V	-2.0V	-15A	-60A	30mΩ	SOP8	量产	AO4485
										IRF7240
HM4441	P沟道	-55V	-20V	-2.6V	-5A	-25A	64mΩ	SOP8	量产	AO4441/AO4421/
										AO4443
HM5853	P沟道+肖特基	22V	8V	0.69V	3A	12A	110mΩ	DFN2*3-8	量产	Si5853/AON4703/NHPD4P02
HM16P12D	P沟道	12V	12V	0.7V	16A	65A	18mΩ	DNF2*2-6	量产	AON2701/AON2401/3/5/IRLHS2242