Into the step-up IC 0.9 V to 5 V output of 2.5 V to 5 V single section three dry cell step-up IC lithium battery step-up IC
From 2.5 V to 5.0 V input booster chip peripheral super simple
Low starting voltage: 0.8 V to 0.1 V (progress)
! But lithium batteries
Low power consumption PFM DC - DC booster chip
An overview of the
HU2113 series products are a kind of high efficiency, low
Ripple, high working frequency PFM boost DC - DC variable
That is,
HU2113 series of products need only four peripheral yuan
Device that can be completed to low battery voltage change
Booster to the required operating voltage, and is very suitable for portable
Section 1 ~ 4 normal battery application occasions,
Electric circuit USES a high performance, low power consumption of reference
Pressure circuit structure, and at the same time introducing correction technology in the production,
Ensure the high output precision of the output voltage and low temperature drift
Move, the output voltage accuracy is better than that of plus or minus 2.5%, the highest efficiency
Can reach 89%,
HU2113 series products are a total of four kinds of packaging form
Type: SOT23, SOT23-5, SOT89-3 and the TO - 92,
Among them, the SOT23-5 encapsulation with built-in EN can end,
Can control the working state of the converter, when EN can make side
Input is low electricity at ordinary times, shut off the power chip,
To minimize power consumption,
The characteristics of
The highest working frequency: 300 KHZ
Output voltage: 2.5 V ~ 5.0 V (step 0.1 V) low starting voltage: 0.8 V (1 ma)
: the output precision is better than that of plus or minus 2.5%
The highest efficiency: 89% output current: greater than 300 ma (=2.5 V, Vi
Vo=3.3 V)
Low ripple, low noise
Only four peripheral components
Application field
1 ~ 3 dry cell of electronic devices,
LED flashlight, LED lamp, sphygmomanometer
Electronic dictionary, car alarm, battery charger, VCR,
PDA handheld electronic devices such as
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