NCP1521AMUTBG ONSEMI [ON Semiconductor], NCP1521AMUTBG Datasheet - Page 3

• Manufacturer Part Number: NCP1521AMUTBG
• Description: 1.5 MHz, 600 mA, High−Efficiency, Low Quiescent Current, Adjustable Output Voltage Step−Down Converter
• Manufacturer: ONSEMI [ON Semiconductor]

Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit values
(not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied, damage
may occur and reliability may be affected.
1. Maximum electrical ratings are defined as those values beyond which damage to the device may occur at T
2. According to JEDEC standard JESD22−A108B.
3. This device series contains ESD protection and exceeds the following tests:
4. Latchup current maximum rating per JEDEC standard: JESD78.
PIN FUNCTION DESCRIPTION
MAXIMUM RATINGS
Pin No.
Minimum Voltage All Pins
Maximum Voltage All Pins (Note 2)
Maximum Voltage Enable, FB, LX
Thermal Resistance, Junction −to−Air
Operating Ambient Temperature Range
Storage Temperature Range
Junction Operating Temperature
Latch−up Current Maximum Rating (T
ESD Withstand Voltage (Note 3)
TSOP5
Human Body Model
Machine Model
Human Body Model (HBM) per JEDEC standard: JESD22−A114.
Machine Model (MM) per JEDEC standard: JESD22−A115.
1
2
3
4
5
Figure 5. Pin Connections − TSOP5
Pin No.
UDFN6
2, 4
3
1
6
5
GND
VIN
EN
1
2
3
(Top View)
Symbol
GND
VIN
EN
FB
LX
Rating
A
5
4
= 85°C) (Note 4)
Analog Output
Analog/Power
Analog Input
Analog Input
LX
FB
Digital Input
Function
Ground
PIN CONNECTIONS
http://onsemi.com
Power Supply Input for Analog V
Ground connection for the NFET Power Stage and the Analog Sections of
the IC.
Enable for Switching Regulator. This pin is active high. Do not float this pin.
Feedback voltage from the output of the power supply. This is the input to
the error amplifier.
Connection from Power MOSFETs to the Inductor. For one option, an output
discharge circuit sinks current from this pin.
NCP1521
3
UDFN6
TSOP5
Figure 6. Pin Connections − UDFN6
Symbol
GND
V
V
Vesd
R
V
T
VIN
max
T
Lu
EN
max
min
qJA
T
stg
A
j
Description
1
2
3
CC
.
−55 to 150
−40 to 125
6
5 LX
4
VIN + 0.3
−40 to 85
A
+/−100
Value
−0.3
TBD
= 25°C.
200
200
7.0
FB
GND
2.0
_C/W
Unit
mA
_C
_C
_C
kV
V
V
V
V