R1215D Datasheet, PDF (3/22 Pages) RICOH electronics devices division – STEP-UP DC/DC CONTOLLER

PIN CONFIGURATION
Top View
8765
SON-8
Bottom View
5678
∗∗
∗
R1215D
1234
4321
PIN DESCRIPTION
Pin No
Symbol
Description
1
EXT
External FET Drive Pin (CMOS Output)
2
GND
Ground Pin
3
DTC
Pin for Setting Maximum Duty Cycle and Soft start time
4
DELAY
Pin for External Capacitor
(for Setting Output Delay of Protection)
5
VFB
Feedback Pin for monitoring Output Voltage
6
VREFOUT
Reference Voltage Output Pin
7
AMPOUT
Amplifier Output Pin
8
VIN
Power Supply Pin for the IC
∗ Tab in the parts have GND level. (They are connected to the reverse side of this IC.)
Do not connect to other wires or land patterns.
ABSOLUTE MAXIMUM RATINGS
(GND=0V)
Symbol
Item
Rating
Unit
VIN
VIN Pin Voltage
6.5
V
VEXT
EXT Pin Output Voltage
−0.3 to VIN+0.3
V
VDLY
DELAY Pin Voltage
−0.3 to VIN+0.3
V
VREFOUT
VREFOUT Pin Voltage
−0.3 to VIN+0.3
V
VAMP
AMPOUT Pin Voltage
−0.3 to VIN+0.3
V
VDTC
DTC Pin Voltage
−0.3 to VIN+0.3
V
VFB
VFB Pin Voltage
−0.3 to VIN+0.3
V
IAMP
AMPOUT Pin Current
±10
mA
IROUT
VREFOUT Pin Current
30
mA
IEXT
EXT Pin Inductor Drive Output Current
±80
mA
PD
Power Dissipation
480
mW
Topt
Operating Temperature Range
−40 to +85
°C
Tstg
Storage Temperature Range
−55 to +125
°C
∗1 For Power Dissipation, please refer to PACKAGE INFORMATION to be described.
3