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| HA16114P Datasheet, PDF (36/38 Pages) Hitachi Semiconductor – Switching Regulator for Chopper Type DC/DC Converter | |||
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HA16114P/PJ/FP/FPJ, HA16120FP/FPJ
Application Examples (4) (Some Pointers on Use)
1. Inductor, Power MOS FET, and Diode Connections
1. Step-up topology
V IN
V IN
CF
RF
RCS Applicable only
to HA16120
CL
2. Step-down topology
V IN
CF
V IN
RF
CL
RCS Applicable only
to HA16114
OUT
GND
OUT
VO
GND
FB
VO
FB
3. Inverting topology
4. Step-down/step-up (buck-boost) topology
V IN
CF
RF
RCS Applicable only
to HA16114
CL
OUT
VO
V IN
CF
RF
RCS Applicable only
to HA16114
CL
OUT
GND
FB
GND
FB
Vref
2. Turning Output On and Off while the IC is On
To turn only one channel off, ground the DB pin or the E/O pin.
In the case of E/O, however, there will be no soft start
when the output is turned back on.
DB
E/O
OFF
36
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