参数资料
型号: MP2259DJ
厂商: MONOLITHIC POWER SYSTEMS INC
元件分类: 稳压器
英文描述: 1.8 A SWITCHING REGULATOR, 1400 kHz SWITCHING FREQ-MAX, PDSO6
封装: MO-193AB, TSOT-23, 6 PIN
文件页数: 4/9页
文件大小: 354K
代理商: MP2259DJ
MP2259 – 1A, 16V, 1.4MHz STEP-DOWN CONVERTER
MP2259 Rev. 0.91
www.MonolithicPower.com
4
1/14/2008
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
2008 MPS. All Rights Reserved.
TYPICAL PERFORMANCE CHARACTERISTICS
VIN = 5V, VOUT = 1.8V, L = 4.7H, C1 = 4.7F, C2 = 10F, TA = +25C, unless otherwise noted.
100
10
1000
MP2259-TPC02
Efficiency vs
Load Currents
400ns/div.
MP2259-TPC03
Steady State Test
VIN = 5V, VOUT = 1.8V, IOUT = 0.5A
VOUT
AC Coupled
50mV/div.
IL
1A/div.
ILOAD
1A/div.
MP2259-TPC04
VOUT
1V/div.
IL
1A/div.
MP2259-TPC05
Short Circuit Entry
VIN = 5V
MP2259-TPC06
Short Circuit Recovery
VIN = 5V
VIN = 5V
VIN = 12V
VOUT = 1.8V
100
95
90
85
80
75
70
65
60
55
50
LOAD CURRENT (mA)
EFFICIENCY
(%)
VOUT
20mV/div.
VSW
5V/div.
IL
500mA/div.
VOUT
1V/div.
IL
1A/div.
100
95
90
85
80
75
70
65
60
55
50
EFFICIENCY
(%)
10
100
1000
LOAD CURRENT (mA)
MP2259-TPC01
Efficiency vs
Load Current
VIN = 5V
VIN = 12V
VOUT = 2.5V
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