NJU7691 Datasheet, PDF (1/8 Pages) New Japan Radio – 300mA Synchronous Step-Down switching regulator IC

NJU7691
300mA Synchronous Step-Down switching regulator IC
■ GENERAL DESCRIPTION
The NJU7691 is a synchronous rectification switching
regulator IC with a power MOSFET (300mA output).
It incorporates an over-current detection and thermal
shutdown circuit, which can make a power supply circuit with
few external parts. The output voltage can be set from 1.8V.
Therefore it is suitable for a power supply circuit for digital chips
and logic ICs. The NJU7691 is available in a small and thin
8-lead MSOP (TVSP) package.
■ PACKAGE OUTLINE
NJU7691RB1
(MSOP8 (TVSP8))
■ FEATURES
● 300mA Synchronous Step-Down
● PWM switching control
● Operating Voltage
2.2V to 7V
● Wide Oscillator Range 300kHz to 1MHz
● Maximum Duty Cycle 100%
● Stand-by Current
5µA max.
● Soft-Start Function
4ms typ.
● Over Current Protection
● C-MOS Technology
● Package Outline
NJU7691RB1 : MSOP8 (TVSP8)*
*MEET JEDEC MO-187-DA / THIN TYPE
■ PIN CONFIGURATION
1
8
2
7
3
6
4
5
NJU7691RB1
PIN FUNCTION
1. SW
2. V⁺
3. FB
4. IN-
5. ON/OFF
6. RT
7. AGND
8. PGND
Ver.2012-08-03
-1-