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參數(shù)資料
| 型號： | LQH4C100K04 |
| 廠商： | Monolithic Power Systems, Inc. |
| 英文描述： | 1.6MHz Synchronous Step-Down plus 200mA LDO |
| 中文描述： | 1.6MHz的同步降壓型加200mA的LDO穩(wěn)壓器 |
| 文件頁數(shù)： | 2/12頁 |
| 文件大?。?/td> | 475K |
| 代理商： | LQH4C100K04 |
MP2101 – 1.6MHz SYNCHRONOUS STEP-DOWN PLUS 200mA LDO
MP2101 Rev. 1.0
8/18/2006
www.MonolithicPower.com
2
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
2006 MPS. All Rights Reserved.
TM
PACKAGE REFERENCE
TOP VIEW
FB1
EN1
IN1
SW1
GND
1
2
3
4
5
FB2
EN2
PWROK
OUT2
IN2
10
9
8
7
6
EXPOSED PAD
ON BACKSIDE
Part Number*
Package
QFN10
(3mm x 3mm)
Temperature
MP2101DQ
–40
°
C to +85
°
C
*
For Tape & Reel, add suffix –Z (eg. MP2101DQ–Z)
For RoHS compliant packaging, add suffix –LF (eg.
MP2101DQ–LF–Z)
ABSOLUTE MAXIMUM RATINGS
(1)
IN1, OUT1/2 to GND .................–0.3V to + 6.5V
IN2 to GND.........................–0.3V to V
IN1
+ 0.3V
SW1 to GND.......................–0.3V to V
IN1
+ 0.3V
PWROK to GND.........................–0.3V to +6.5V
FB1/2, EN1/2 to GND.................–0.3V to +6.5V
Operating Temperature .............–40°C to +85°C
Junction Temperature...............................150°C
Lead Temperature....................................260°C
Storage Temperature .............–65°C to +150°C
Recommended Operating Conditions
(2)
Supply Voltage V
IN1
...........................2.5V to 6V
Supply Voltage V
IN2
..........................1.2V to V
IN1
Output Voltage V
OUT1/2
.......................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
IN1/2
= V
EN1/2
= 3.6V, T
A
= +25
°
C, unless otherwise noted.
Parameters
Condition
V
FB1/2
= 0.62V
V
EN1
= 0V, V
EN2
= 3.6V
V
EN1
= 3.6V, V
EN2
= 0V
V
EN1/2
= 0V, V
IN1/2
= 6V
Hysteresis = 20°C
FB1/2 with respect to the Nominal Value
FB1/2 with respect to the Nominal Value
I
SINK
= 5mA
Switching Regulator
LDO
–40°C
≤
T
A
≤
+85°C
Min
0.3
Typ
400
80
300
0.01
150
10
–10
50
150
0.96
900
Max
550
100
400
1
0.3
1.5
Units
μA
μA
μA
μA
°C
%
%
V
No Load Supply Current
Shutdown Current
Thermal Shutdown Trip Threshold
PWROK Upper-Trip Threshold
PWROK Lower-Trip Threshold
PWROK Output Lower Voltage
PWROK Deglitch Timer (FB1)
PWROK Deglitch Timer (FB2)
EN1/2 Trip Threshold
EN1/2 Pull-Down Resistor
Switching Regulator
IN1 Under Voltage Lockout Threshold Rising Edge
IN1 Under Voltage Lockout Hysteresis
μs
V
k
1.5
0.588 0.600 0.612
0.582
–50
–2
2.0
100
2.5
V
mV
T
A
= +25°C
–40°C
≤
T
A
≤
+85°C
V
FB1
= 0.62V
Regulated FB1Voltage
0.618
+50
V
FB1 Input Bias Current
nA
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