一,产品概述(General Description)       
The JTM1523 is a compact, high efficiency, and low voltage step-up DC/DC converter with an Adaptive Current Mode PWM control loop,
includes an error amplifier, ramp generator,comparator, switch pass element and driver in which providing a stable and high efficient operation over a wide range of load currents. It operates in stable waveforms without external 
compensation. 
  
二.产品特点(Features)

1. 2.2V Start-up Input Voltage
2. 18V at 700mA from 5V Input
3. Up to 90% Efficiency
4. No External MOSFET Required
5. Small SOT-23-6L Package

三,应用范围 (Applications)
PDA
DSC
LCD Panel
RF-Tags
MP3
Portable Instrument
Wireless Equipment

四,产品封装图 (Package)

PIN	NAME	FUNCTION
1	AGND	Analog Ground
2	SW	Switch Node For Output
3	VDD	Output Voltage Sense Input
4	EN	ON/OFF Control (High Enable)
5	FB	Feedback
6	PGND	Power Ground

五,电路原理图

六, 产品PCB
(略)
七.产品BOM  
  (略)
八.产品PDF文档 

JTM1523

九,功能概述
Supply Voltage………………………………………………………………………....... −0.3V ~ 6V
SW Pin Switch Voltage…………………………………………………………………−0.3V ~ 22V
SW Pin Switch Current ………………………………………………………………...…………..4.5A
Other I/O Pin Voltages……………………………………………………….. −0.3V ~ (VDD + 0.3V)
Package Thermal Resistance (SOT-23-6L)θJA………………………………………….+220℃/W
Operating Temperature Range(Note 2)……………………………………………….-40℃ ~ +85℃
Maximum Junction Temperature………………………………………….………….………..+150℃
Storage Temperature Range ……………………………………………………….−65℃ ~ +150℃
Lead Temperature (Soldering 10sec)... ………………………………………………………..+265℃

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)
JTM2301/A	P沟道	-20V	-10V	-0.7V	-3A	-10A	65mΩ	SOT23	量产	Si2301/AP2301/SI2305/XP152A/
								SOT23-3L		IRLML6401/IRML6402/AO3423
JTM2301B	P沟道	-20V	-12V	-0.7V	-2.8A	-10A	83mΩ	SOT23	量产	Si2301/AP2301/XP152A/
										IRLML6402/AO3423
JTM2301C	P沟道	-12V	-12V	-0.7V	-2.8A	-10A	85mΩ	SOT23	量产	Si2301/AP2301/XP152A/
										IRLML6402/AO3423
JTM2305	P沟道	-20V	-12V	-0.7V	-4.1A	-15A	39mΩ	SOT23	量产	Si2305/AP2305/APM2305/
										IRLML6401/IRML6402/AO3423
JTM2333	P沟道	-12V	-12V	0.32V	6A	20A	30mΩ	SOT23-3L	量产	Si2333/IRLML6302
JTM2341/B	P沟道	-30V	-20V	-1V	-4.2A	-30A	50mΩ	SOT23-3L	量产	WPM2341/Si2341/AO3401
								SOT23		AO3415/IRLML6401/SI2307
JTM3401/B	P沟道	-30V	-20V	-1V	-4.2A	-30A	50mΩ	SOT23-3L	量产	AO3401/AO3415/IRLML6401
								SOT23		/IRLML6402/SI2307
JTM3401C	P沟道	-30V	-20V	-1.6V	-2.5A	-10A	72mΩ	SOT23	量产	AO3401/AO3407/AO3415/
										IRLML6401/IRLML6402/SI2307
JTM3407/B	P沟道	-30V	-20V	-1.5V	-4.2A	-20A	55mΩ	SOT23-3L	量产	AO3407/AO3415/IRLML6401
								SOT23		IRLML6402/SI2307
JTM3413/B	P沟道	-20V	-12V	-0.7V	-2.5A	-10A	118mΩ	SOT23-3L	量产	AO3413
								SOT23
JTM3415E	P沟道	-20V	-10V	-0.65V	-4.0A	-30A	34mΩ	SOT23-3L	量产	AO3415
	带ESD保护
JTM3421/B	P沟道	-30V	-20V	-1V	-4.2A	-30A	50mΩ	SOT23-3L	量产	AO3421/AO3401/AO3415
								SOT23		WPM2341/IRLML6401/SI2307
JTM2319	P沟道	-40V	-20V	-1.5V	-5.3A	-20A	73mΩ	SOT-23-3L	量产	Si2319
JTM2309	P沟道	-60V	-20V	-1.0V	-1.8A	-7A	170mΩ	SOT-23-3L	量产	Si2309
JTM6401	P沟道	-30V	-20V	-1V	-5.0A	-30A	50mΩ	SOT23-6L	量产	AO6401/Si3481/APM2605/AO6405
										Si3455/SI3457/FDC634P/FDC636P
JTM9435	P沟道	-30V	-20V	-1.6V	-5.1A	-20A	48mΩ	SOP8	量产	CEM9435/APM9435/AP9435/
										Si9435/FDS9435/AO4405
JTM9435B	P沟道	-20V	-10V	-0.7V	-5A	-20A	60mΩ	SOP8	量产	CEM9435/APM9435/AP9435/
										Si9435/FDS9435/AO4405
JTM4435	P沟道	-30V	-20V	-1.5V	-9.1A	-50A	15mΩ	SOP8	量产	AO4435/CEM4435/APM4435/
										AP4435/Si4435/FDS4435
JTM4407	P沟道	-30V	-20V	-1.65V	-12A	-60A	14mΩ	SOP8	量产	AO4407/CEM4407/APM4407/
										AP4407/Si4407/FDS4407
JTM4409	P沟道	-30V	-20V	-1.75V	-15A	-80A	8mΩ	SOP8	量产	AO4409/AO4407/AO4435/CEM4435
										APM4435/AP4435/Si4435/FDS4435
JTM4443	P沟道	-40V	-20V	-1.5V	-6A	-24A	73mΩ	SOP8	量产	AO4443
										IRF7241
JTM4485	P沟道	-40V	-20V	-2.0V	-15A	-60A	30mΩ	SOP8	量产	AO4485
										IRF7240
JTM4441	P沟道	-55V	-20V	-2.6V	-5A	-25A	64mΩ	SOP8	量产	AO4441/AO4421/
										AO4443
JTM5853	P沟道+肖特基	22V	8V	0.69V	3A	12A	110mΩ	DFN2*3-8	量产	Si5853/AON4703/NHPD4P02
JTM16P12D	P沟道	12V	12V	0.7V	16A	65A	18mΩ	DNF2*2-6	量产	AON2701/AON2401/3/5/IRLHS2242