UPD16901 Datasheet, PDF (1/12 Pages) NEC – FLASH MEMORY VOLTAGE STEPUP DC/DC CONVERTER IC

DATA SHEET
MOS INTEGRATED CIRCUIT
µPD16901
FLASH MEMORY VOLTAGE STEPUP DC/DC CONVERTER IC
The µPD16901 is a DC/DC converter IC which produces a 12 V output from a 5 V input source. The integration
of a control circuit and power MOSFET in the output stage on a single-chip allows a power supply for flash memory
write and erasure to be configured with a reduced number of external components.
FEATURES
• With an on-chip output stage power MOSFET, fewer external components are needed.
• The ALLMOS structure achieves low power consumption.
• Internally set output voltage eliminates the need for adjustment.
• Output can be turned ON/OFF via an external signal.
• A timer latch type overcurrent protection circuit on chip
ORDERING INFORMATION
Part Number
µPD16901GS
Package
14-pin plastic SOP (300 mil)
BLOCK DIAGRAM
ON/OFF VIN
CDLY
C1H C1L C2
Reference
voltage circuit
Startup
circuit
Timer latch short-circuit
protection circuit
Charge pump
circuit
F/F
SW
β
Oscillation
circuit
Overcurrent
detection circuit
FB
RT
GND
The information in this document is subject to change without notice.
Document No. S10643EJ2V0DS00 (2nd edition)
Date Published May 1997 N
Printed in Japan
VSW
C.S.
©
1997