中文
EnglishDC/DC Step up Converter JTM2128 ,High frequency noise that occurs during switching is reduced by using advanced circuit designed, output voltage is programmable in 0.1V steps between 2.0~7.0V and maxi
目录
JTM2128 Series is a PFM Step-up DC/DC converter IC with low supply current by CMOS process. High frequency noise that occurs during switching is reduced by using advanced circuit designed, output voltage is programmable in 0.1V steps between 2.0~7.0V and maximum frequency is 180KHz(Typ.). A low ripple, high efficiency step-up DC/DC converter can be constructed of JTM2128Xxx with only three external components. Also available is a CE(chip enable) function that reduce power dissipation During shut-down mode. MJTM128Xxx is suitable for use with battery-powered instrummets with low noise and low supply current.
z Low ripple and low noise
z Operating voltage range：0.9V~6.5V
z Output voltage range：2.0V~7.0V(step 0.1V)
z Output voltage accuracy：±2.5%
z Output Current：if Vin=3.0V and Vout=5.0V， then Iout=400mA
z Low start voltage：≤0.9V(at Iout=1mA)；
z Maximum oscillator frequency：180KHz(Typ.)
z High Efficiency：85%(Type) z PACKAGE：SOT23，SOT89
z Power source for battery-powered equipment
z Power source for wireless mouse, wireless keyboard, toys, cameras, camcorders, VCRs, PDAs, and hand-held communication equipment
z Power source for appliances which require higher cell voltage than that of batteries used in the appliances
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| Part Number | MODE | VIN | VOUT | Accu | FOSC | Eff. | Application | Package |
| JTM2100 | PFM | 0.9-6.5V | 3.0-5.0V | ±2.5% | 100K | 85% | ①②③④⑤⑥⑧</td> | SOT23-3/SOT23-5/SOT89-3 |
| JTM2101 | PWM | 0.9-6.5V | 3.0-5.0V | ±2.5% | 100K | 87% | ①②③④⑤⑥⑧</td> | SOT23-3/SOT23-5/SOT89-3 |
| JTM2108 | PFM | 0.9-6.5V | 2.7-5.6V | ±2.5% | 180K | 85% | ①②③④⑤⑥⑦</td> | SOT23-5/SOT89-3/SOT23-3/TO92 |
| JTM2109 | PFM/PWM | 0.9-6.5V | <20V | ±2% | 300K | 88% | ⑥⑦⑨⑩ | SOT23-5 |
| JTM2110 | PFM | 0.9-6.5V | 1.8-6.0V | ±2% | 150K/ | 85% | ①②③④⑤⑥ | SOT89-3 |
| 300K | /SOT23-5 | |||||||
| /SOT23-3 | ||||||||
| JTM2129 | PFM/PWM | 0.9-6.5V | <20V | ±2% | 300K | 88% | ⑥⑦⑨⑩ | SOT23-5 |
| JTM2135 | CHARGE | 2.7-5.5V | 5.0V | ±3% | 650K | 81% | ①②④⑦⑧</td> | SOT23-6 |
| JTM2139 | PFM/PWM | 0.9-6.5V | <20V | ±2% | 1M | 85% | ⑥⑦⑨⑩ | SOT23-5/ |
| SOT89-5 | ||||||||
| JTM2149 | PFM/PWM | 0.9-6.5V | <20V | ±2% | 1M | 85% | ⑥⑦⑨⑩ | SOT23-5/ |
| SOT89-5 | ||||||||
| JTM2159 | PFM/PWM | 2.5-5.0V | <12V | ±2% | 1M | 85% | ⑥⑦⑨⑩ | SOT23-6 |
| JTM2169 | PFM/PWM | 2.5-5.0V | <20V | ±2% | 1M | 88% | ①⑥⑦⑨⑩</td> | SOT23-6 |
| JTM2179 | PFM/PWM | 0.9-6.5V | <20V | ±2% | 1.2M | 85% | ⑥⑦⑨⑩ | SOT23-6 |
| JTM2185 | PFM/PWM, Synchronous | 2.9-4.4V | <5.5V | ±2% | 1M | 94% | ①②④⑦ | ESOP8 |
| JTM2186 | PFM, Synchronous | 0.9-6.5V | 1.8-6.0V | ±2% | 330K | 85% | ①②③④⑤⑥ | SOT89-3/ SOT23-5 |
| /SOT23-3 | ||||||||
| JTM2188 | PFM, Synchronous | 0.9-5.0V | 1.8-5.0V | ± 2% | 400K | 95% | ①②④⑥⑦</td> | SOT89/SOT23/ |
| SOT23-5/TO92 | ||||||||
| JTM2189 | PFM, Synchronous | 0.9-6.0V | 1.8-6.0V | ±2% | 140K | 81% | ①②③④⑤⑥ | SOT89/SOT23-3 |
| Applications： ①Battery powered equipJTMnt②Wireless mouse, Wireless keyboard③Toys④CaJTMra, Video caJTMra⑤VCR ⑥PDA⑦LED Lighting⑧Wireless communication equipJTMnt⑨MID⑩Audio equipJTMnt | ||||||||
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