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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： | 2/9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
2
1/14/2008
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
2008 MPS. All Rights Reserved.
PACKAGE REFERENCE
BST
GND
FB
1
2
3
6
5
4
SW
IN
EN
MP2259_PD01_TSOT23
TOP VIEW
Part Number*
Package
Temperature
MP2259DJ
TSOT23-6
–40
°C to +85°C
* For Tape & Reel, add suffix –Z (eg. MP2259DJ–Z)
For RoHS compliant packaging, add suffix –LF (eg.
MP2259DJ–LF–Z)
ABSOLUTE MAXIMUM RATINGS (1)
Supply Voltage VIN ....................................... 20V
VSW............................................................... 21V
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
BST
GND
FB
1
2
3
6
5
4
SW
IN
EN
MP2259_PD02_SOT23
TOP VIEW
Part Number*
Package
Temperature
MP2259DT
SOT23-6
–40
°C to +85°C
* For Tape & Reel, add suffix –Z (eg. MP2259DT–Z)
For RoHS compliant packaging, add suffix –LF (eg.
MP2259DT–LF–Z)
Recommended Operating Conditions
(2)
Supply Voltage VIN........................... 4.5V to 16V
Output Voltage VOUT ........................ 0.81 to 14V
Operating Temperature .............–40
°C to +85°C
Thermal Resistance
(3)
θJA
θJC
TSOT23-6.............................. 220 .... 110..
°C/W
SOT23-6 ................................ 220 .... 110..
°C/W
Notes:
1) Exceeding these ratings may damage the device.
2) The device is not guaranteed to function outside of its
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 ≤ 16V
0.790
0.810
0.830
V
VFB = 0.8V
10
nA
Feedback Current
IFB
VFB = 2V
2
A
Switch-On Resistance (4)
RDS(ON)
0.5
Switch Leakage
VEN = 0V, VSW = 0V
10
A
Current Limit (4)
1.8
A
Oscillator Frequency
fSW
VFB = 0.6V
1.4
MHz
Fold-back Frequency
VFB = 0V
460
KHz
Maximum Duty Cycle
VFB = 0.6V
85
%
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