NJU7262 Datasheet, PDF (1/6 Pages) New Japan Radio – C-MOS STEP-UP SWITCHING REGULATOR

NJU7262 Series
C-MOS STEP-UP SWITCHING REGULATOR
PRELIMINARY
■ GENERAL DESCRIPTION
■ PACKAGE OUTLINE
The NJU7262 series is a C-MOS step-up switching regulator
which contains accurate voltage reference, error amplifier, CR
oscillator, control circuit, switching transistor, diode and resistor.
The operating clock is prepared on-chip or is available to input
from external, and the stand-by function is effective for low power
NJU7262MXX
consumption.
The regulation voltage is fixed by internal circuits and the following
line-up of different output voltages version are available.
This series is suitable for portable equipment's or battery operated
NJU7262VXX
NJU7262RXX
items because of its small packaged outline, low operating voltage
and current.
■ FEATURES
• Low Operating Voltage
(1.0V min.)
• Low Operating Current
• Low Stand-by Current
(5.0µA typ. / V_OUT = 3.0V)
(0.2µA max. / V_OUT = 3.0V)
• High Precision Output Voltage (±3% max.)
• Wide Operating Voltage Range
• External/Internal Clock Select Function
• Stand-by Function
• CR Oscillator On-chip
• Diode On-chip
• Package Outline
DMP-8/SSOP-8/VSP-8
• C-MOS Technology
■ LINE-UP
Output Voltage (V)
DMP-8
Package
SSOP-8
VSP-8
3.0
NJU7262M30 NJU7262V30 NJU7262R30
5.0
NJU7262M50 NJU7262V50 NJU7262R50
■ PIN CONFIGURATION
■ EQUIVALENT CIRCUIT
■ TERMINAL DESCRIPTION
No.
Term. Name
1
CONT
2
GND
3
NC
4
STB
5
V_IN
6
SW
I/O
I
POWER
-
I
POWER
I
7
CLK
I
8
V_OUT
O
FUNCTION
External Inductor Connect Terminal
Power Source (GND)
Non Connect
Strobe Terminal : "H" or OPEN ···Normal Operation (step-up)
"L"
···Standp-By Operation
Power Source (+)
External / Internal
"H" or OPEN···Internal Oscillation
Clock Select Terminal "L"
···External Clock Input
(When "L" level is input, Internal oscillation is stopped)
External Clock Input Terminal
Step-up Output Terminal
Ver.2003-07-18
-1-