NCP4680
VIN
VOUT
VIN
VOUT
Vref
Vref
CE
Current Limit
CE
GND
Current Limit
GND
NCP4680Hxxxx
NCP4680Dxxxx
Figure 2. Simplified Schematic Block Diagram
PIN FUNCTION DESCRIPTION
Pin No.
XDFN4*
1
2
3
4
−
Pin No.
SC−70
4
3
1
5
2
Pin No.
SOT23
5
2
3
1
4
Pin Name
V
OUT
GND
CE
V
IN
NC
Output pin
Ground
Chip enable pin (Active “H”)
Input pin
No connection
Description
*Tab is GND level. (They are connected to the reverse side of this IC.
The tab is better to be connected to the GND, but leaving it open is also acceptable.
ABSOLUTE MAXIMUM RATINGS
Rating
Input Voltage (Note 1)
Output Voltage
Chip Enable Input
Output Current
Power Dissipation XDFN0808
Power Dissipation SC−70
Power Dissipation SOT23
Junction Temperature
Storage Temperature
ESD Capability, Human Body Model (Note 2)
ESD Capability, Machine Model (Note 2)
T
J
T
STG
ESD
HBM
ESD
MM
P
D
Symbol
V
IN
V
OUT
V
CE
I
OUT
Value
6.0
−0.3
to V
IN
+ 0.3
6.0
180
286
380
420
−40
to 150
−55
to 125
2000
200
°C
°C
V
V
Unit
V
V
V
mA
mW
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
1. Refer to ELECTRICAL CHARACTERISTIS and APPLICATION INFORMATION for Safe Operating Area.
2. This device series incorporates ESD protection and is tested by the following methods:
ESD Human Body Model tested per AEC−Q100−002 (EIA/JESD22−A114)
ESD Machine Model tested per AEC−Q100−003 (EIA/JESD22−A115)
Latch−up Current Maximum Rating tested per JEDEC standard: JESD78.
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