參數(shù)資料
型號(hào)： NCP1521BMUTBG
廠(chǎng)商： ON SEMICONDUCTOR
元件分類(lèi)： 穩(wěn)壓器
英文描述： 1.5 MHz, 600 mA Step−Down DC−DC Converter
中文描述： 1.2 A SWITCHING REGULATOR, 1800 kHz SWITCHING FREQ-MAX, PDSO6
封裝： 2 X 2 MM, 0.65 MM PITCH, LEAD FREE, UDFN-6
文件頁(yè)數(shù)： 3/14頁(yè)
文件大?。?/td> 226K
代理商： NCP1521BMUTBG
NCP1521B
http://onsemi.com
3
PIN FUNCTION DESCRIPTION
Pin No.
TSOP5
UDFN6
Pin No.
Pin Name
Type
Description
1
3
VIN
Analog /
Power Input
Power supply input for the PFET power stage, analog and digital blocks. The
pin must be decoupled to ground by a 4.7 F ceramic capacitor.
2
2, 4
GND
Analog /
Power Ground
This pin is the GND reference for the NFET power stage and the analog sec-
tion of the IC. The pin must be connected to the system ground.
3
1
EN
Digital Input
Enable for switching regulators. This pin is active HIGH and is turned off by
logic LOW on this pin. Do not left this pin floating.
4
6
FB
Analog Input
Feedback voltage from the output of the power supply. This is the input to the
error amplifier.
5
5
LX
Analog Output
Connection from power MOSFETs to the Inductor.
Figure 5. Pin Connections
TSOP5
Figure 6. Pin Connections
UDFN6
(Top View)
1
2
3
5
4
VIN
GND
EN
LX
FB
1
2
3
6
4
EN
GND
VIN
FB
GND
PIN CONNECTIONS
5
LX
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Minimum Voltage All Pins
V
min
0.3
V
Maximum Voltage All Pins (Note 2)
V
max
7.0
V
Maximum Voltage Enable, FB, LX
V
max
VIN + 0.3
V
Thermal Resistance, Junction
to
Air
(with Recommended Soldering Footprint)
TSOP5
UDFN6
R
JA
300
260
°
C/W
Operating Ambient Temperature Range
T
A
40 to 85
°
C
Storage Temperature Range
T
stg
55 to 150
°
C
Junction Operating Temperature
T
j
40 to 125
°
C
Latch
up Current Maximum Rating (T
A
= 85
°
C) (Note 4)
Lu
100
mA
ESD Withstand Voltage (Note 3)
Human Body Model
Machine Model
V
esd
2.0
200
kV
V
Moisture Sensitivity Level (Note 5)
MSL
1
per IPC
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. Maximum electrical ratings are defined as those values beyond which damage to the device may occur at T
A
= 25
°
C.
2. According to JEDEC standard JESD22
A108B.
3. This device series contains ESD protection and exceeds the following tests:
Human Body Model (HBM) per JEDEC standard: JESD22
A114.
Machine Model (MM) per JEDEC standard: JESD22
A115.
4. Latchup current maximum rating per JEDEC standard: JESD78.
5. JEDEC Standard: J
STD
020A.
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