The JTMH4004A is a low noise switched capacitor voltage doubler. It produces a regulated output voltage from a 2.7V to 4.5V input. Low external parts count (one flying capacitor and two small bypass c

一,产品概述(General Description)      

   The JTMH4004A is a low noise switched capacitor voltage doubler. It produces
a regulated output voltage from a 2.7V to 4.5V input. Low external parts count
(one flying capacitor and two small bypass capacitors at VIN and VOUT) make the
JTMH4004A ideally suited for small,battery-powered applications.
  The JTMH4004A have thermal shutdown capability and can survive a continuous
short circuit from VOUT to GND. A low current shutdown feature disconnects the
load from VIN and reduces quiescent current to <1μA.
   The JTMH4004A is available in the industry standard SOT-23-6L power packages.
二.产品特点(Features)

Fixed 4.94V±3% Output
VIN Range: 2.7V to 4.5V
Output Current: Up to 110mA (VIN≥3V)
Up to 230mA (VIN≥3.6V)
Low Noise Constant Frequency (360kHz)
Operation
Shutdown Current <1μA
No Inductors
Available in Low Profile 6-Lead SOT23
Package
三,应用范围 (Applications)

White LED Backlighting
Li-Ion Battery Backup Supplies
Smart Card Readers
PCMCIA Local 5V Supplies
四.技术</span>规格书下载（产品PDF）</span>

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JTMH4004A

五,产品封装图 (Package)


六.电路原理图</span>



七</span>,功能概述

ØV IN ……………………………….…………………………….…….….…..….………-0.3V ～ 6V
Ø V OUT………………………………………………………………………………….….-0.3V ～ 5.5V
Ø V E N……………………………………………………...………………… ….…...……-0.3V ～ 6V
Ø IOUT (Note 2) …………………….................................………………………...................... 300mA
Ø Operating Temperature Range (Note 3)…………………………………………...……-40℃ ～ +85℃</span>
Ø Lead Temperature (Soldering 10, sec.) ……………………………………..………………+265℃</span>
Ø Storage Temperature Range ………………………………………………..…..-65℃ ～ +125℃</span>
八,相关芯片选择指南

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