參數(shù)資料
型號(hào): LP03310-222ML
廠商: Monolithic Power Systems, Inc.
英文描述: Dual 1.2MHz, 800mA Synchronous Step-Down Converter
中文描述: 雙1.2MHz的,800mA的同步降壓轉(zhuǎn)換器
文件頁數(shù): 2/8頁
文件大小: 303K
代理商: LP03310-222ML
MP2109 – DUAL 1.2MHz 800mA SYNCHRONOUS STEP-DOWN CONVERTER
MP2109 Rev.1.3
2/21/2006
www.MonolithicPower.com
2
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
2006 MPS. All Rights Reserved.
TM
PACKAGE REFERENCE
Part Number*
Package
QFN10
(3mm x 3mm)
Temperature
MP2109DQ
–40
°
C to +85
°
C
*
For Tape & Reel, add suffix –Z (eg. MP2109DQ–Z)
For Lead Free, add suffix –LF (eg. MP2109DQ–LF–Z)
ABSOLUTE MAXIMUM RATINGS
(1)
V
IN1/IN2
to GND ............................–0.3V to +6.5V
V
SW1/SW2
to GND................... –0.3V to V
IN
+ 0.3V
V
FB1/FB2
, V
EN1/EN2
to GND .............–0.3V to +6.5V
Junction Temperature.............................+150
°
C
Lead Temperature..................................+260
°
C
Storage Temperature .............–65
°
C to +150
°
C
Recommended Operating Conditions
(2)
Supply Voltage V
IN1/IN2
.......................2.5V to 6V
Output Voltage V
OUT1/OUT2
..................0.6V to 6V
Operating Temperature .............–40
°
C to +85
°
C
Thermal Resistance
(3)
QFN10 (3mm x 3mm).............50...... 12...
°
C/W
θ
JA
θ
JC
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
(4)
V
IN1/IN2
= V
EN1/EN2
= 3.6V, T
A
= +25
°
C, unless otherwise noted.
Parameter
Symbol Condition
Each Converter Supply Current
Each Converter Shutdown
Current
IN Under Voltage Lockout
Threshold
IN Under Voltage Lockout
Hysteresis
Min
Typ
440
Max
600
Units
μA
V
EN1/EN2
= V
IN1/IN2
, V
FB1/FB2
= 0.65V
V
EN1/EN2
= 0V, V
IN1/IN2
= 6V
0.10
1
μA
Rising Edge
2.15
2.30
2.40
V
55
mV
T
A
= +25°C
–40°C
T
A
+85°C
V
FB1/FB2
= 0.65V
I
SW1/SW2
= 100mA
I
SW1/SW2
= –100mA
V
EN1/EN2
= 0V, V
IN1/IN2
= 6V
V
SW1/SW2
= 0V or 6V
Duty Cycle = 100%,
Current Pulse Width < 1ms
0.588
0.582
–50
0.600
0.600
0.5
0.42
0.26
0.612
0.618
+50
Regulated FB Voltage
V
FB
V
FB Input Bias Current
PFET On Resistance
NFET On Resistance
I
FB
nA
SW Leakage Current
–2
+2
μA
PFET Current Limit
0.9
1.3
1.8
A
Oscillator Frequency
Thermal Shutdown Trip
Threshold
EN Enable Threshold
EN Input Current
f
OSC
0.99
1.24
1.49
MHz
150
°
C
–40°C
T
A
+85°C
V
EN1/EN2
= 0V to 6V
0.3
–1
0.96
1.5
+1
V
μA
Notes:
4) Production test at +25°C. Specifications over the temperature range are guaranteed by design and characterization.
MP2109_PD02_QFN10
TOP VIEW
EN1
FB1
IN2
GND2
SW2
1
2
3
4
5
SW1
GND1
IN1
FB2
EN2
10
9
8
7
6
EXPOSED PAD
ON BACKSIDE
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