參數(shù)資料
型號(hào)： MP2370DJ-LF-Z
廠商： MONOLITHIC POWER SYSTEMS INC
元件分類： 穩(wěn)壓器
英文描述： 1.8 A SWITCHING REGULATOR, 1700 kHz SWITCHING FREQ-MAX, PDSO6
封裝： ROHS COMPLIANT, PLASTIC, MO-193AB, TSOT-23, 6 PIN
文件頁(yè)數(shù)： 2/8頁(yè)
文件大?。?/td> 485K
代理商： MP2370DJ-LF-Z
MP2370 – 1.2A, 24V, 1.4MHz STEP-DOWN WHITE LED DRIVER IN A TSOT23-6
MP2370 Rev. 0.96
www.MonolithicPower.com
2
9/21/2007
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
2007 MPS. All Rights Reserved.
PACKAGE REFERENCE
BST
GND
FB
1
2
3
6
5
4
SW
IN
EN
TOP VIEW
Part Number*
Package
Temperature
MP2370DJ
TSOT23-6
–40
°C to +85°C
* For Tape & Reel, add suffix –Z (eg. MP2370DJ–Z)
For RoHS compliant packaging, add suffix –LF (eg.
MP2370DJ–LF–Z)
ABSOLUTE MAXIMUM RATINGS (1)
Supply Voltage VIN....................................... 26V
VSW....................................... –0.3V to VIN + 0.3V
VBS ....................................................... VSW + 6V
All Other Pins................................. –0.3V to +6V
Junction Temperature...............................150
°C
Lead Temperature ....................................260
°C
Storage Temperature ..............–65
°C to +150°C
Recommended Operating Conditions
(2)
Supply Voltage VIN........................... 4.5V to 24V
Output Voltage VOUT ...................... 0.15V to 15V
Ambient Temperature................–40
°C to +85°C
Thermal Resistance
(3)
θJA
θJC
TSOT23-6.............................. 220 .... 110..
°C/W
Notes:
1) Exceeding these ratings may damage the device.
2) The device function is not guaranteed outside of the
recommended operating conditions.
3) Measured on approximately 1” square of 1 oz copper.
ELECTRICAL CHARACTERISTICS
VIN = 12V, TA = +25°C, unless otherwise noted.
Parameters
Symbol Condition
Min
Typ
Max
Units
Feedback Voltage
VFB
4.5V
≤ VIN ≤ 24V
0.145
0.155
0.165
V
Feedback Current
IFB
VFB = 0.15V
0.1
μA
Switch-On Resistance
(4)
RDS(ON)
0.35
Switch Leakage
VEN = 0V, VSW = 0V
10
μA
Current Limit
(4)
1.8
A
Oscillator Frequency
fSW
VFB = 0.13V
1.2
1.4
1.7
MHz
Fold-back Frequency
VFB = 0V
700
KHz
Maximum Duty Cycle
VFB = 0.13V
87
%
Minimum On-Time
(4)
tON
100
ns
Under Voltage Lockout Threshold Rising
2.5
2.8
3.1
V
Under Voltage Lockout Threshold Hysteresis
150
mV
EN Input Low Voltage
0.4
V
EN Input High Voltage
1.2
V
VEN = 2V
2.1
EN Input Current
VEN = 0V
0.1
μA
Supply Current (Shutdown)
IS
VEN = 0V
0.1
1.0
μA
Supply Current (Quiescent)
IQ
VEN = 2V, VFB =
0.2V
0.8
1.0
mA
Thermal Shutdown
(4)
150
°C
Note:
4) Guaranteed by design.
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