參數(shù)資料
型號： NCP1501DMR2G
廠商： ON SEMICONDUCTOR
元件分類： 穩(wěn)壓器
英文描述： Dual Mode PWM/Linear Buck Converter
中文描述： SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO8
封裝： LEAD-FREE, MSOP-8
文件頁數(shù)： 2/14頁
文件大小： 161K
代理商： NCP1501DMR2G
NCP1501
http://onsemi.com
2
PIN FUNCTION DESCRIPTIONS
Pin #
Symbol
Pin Description
1
SHD
Enable Pin for the NCP1501. This pin is active high. Internal pull down resistor forces the part off if the pin is
not connected on the board.
2
SYN
External Synchronization Signal Pin. The device will operate in PWM mode if a clock signal is present. The
pin must be pulled low to enter LDO mode. Internal pull down resistor on pin.
3
V
O
Feedback for the NCP1501. An internal MOSFET is connected across V
O
and LX for LDO mode.
4
LX
Connection for the pass devices to the inductor.
5
V
in
Input voltage to the NCP1501.
6
GND
Ground Connection for the device.
7
CB1
Voltage Selection Bit. Internal pull up resistor on pin.
8
CB0
Voltage Selection Bit. Internal pull down resistor on pin.
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Maximum Voltage All Pins
V
max
5.5
V
Maximum operating Voltage All Pins
V
max
5.2
V
Thermal Resistance, JunctiontoAir
R
JA
240
°
C/W
Operating Ambient Temperature Range
T
A
30 to +85
°
C
ESD Withstand Voltage
Human Body Model (Note 1)
Machine Model (Note 2)
V
ESD
> 2500
> 100
V
Moisture Sensitivity
MSL
Level 1
Storage Temperature Range
T
stg
55 to +150
°
C
Junction Operating Temperature Range
T
J
30 to +125
°
C
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. Tested to EIA/JESD22A114A
2. Tested to EIA/JESD22A115A
ELECTRICAL CHARACTERISTICS
(V
in
= 3.6 V, V
O
= 1.57 V, T
A
= 25
°
C, F
syn
= 600 kHz 50% Duty Cycle square wave for PWM mode;
T
A
= 30 to 85
°
C for Min/Max values, unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
V
CC
Pin
Quiescent Current of Switching Mode, I
out
= 0 mA
Iq PWM
124
500
A
Quiescent Current of LDO Mode, I
out
= 0 mA
Iq LDO
32
65
A
Quiescent Current, SHD Low
Iq Off
0.2
1.0
A
Input Voltage Range
V
in
2.7
5.2
V
Sync Pin
Input Voltage
V
sync
0.3
V
CC
+0.3
V
Frequency Operational Range
F
sync
500
1000
kHz
Minimum Synchronization Pulse Width
Dc
sync(min)
30
%
Maximum Synchronization Pulse Width
Dc
sync(max)
70
%
SYNC “H” Voltage Threshold
V
sync(H)
920
1200
mV
SYNC “L” Voltage Threshold
V
sync(L)
400
830
mV
SYNC “H” Input Current, V
sync
= 3.6 V
I
sync(H)
1.8
A
SYNC “L” Input Current, V
sync
= 0 V
I
sync(L)
0.5
0.005
A
相關(guān)PDF資料
PDF描述
NCP1508 Up to 500 mA, 1 MHz, High Efficiency Synchronous Step−Down DC−DC Converter in DFN Package
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