参数资料
型号: MIC2183YQS TR
厂商: Micrel Inc
文件页数: 4/12页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM CM 16-QSOP
标准包装: 2,500
PWM 型: 电流模式
输出数: 1
频率 - 最大: 440kHz
占空比: 100%
电源电压: 2.9 V ~ 14 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 125°C
封装/外壳: 16-SSOP(0.154",3.90mm 宽)
包装: 带卷 (TR)
其它名称: MIC2183YQSTR
MIC2183YQSTR-ND
MIC2183
Absolute Maximum Ratings (Note 1)
Supply Voltage (V IN A, V IN P) ......................................... 15V
Digital Supply Voltage (V DD ) ........................................... 7V
Comp Pin Voltage (V COMP ) ............................ –0.3V to +3V
Feedback Pin Voltage (V FB ) .......................... –0.3V to +3V
Enable Pin Voltage (V EN/UVLO ) ..................... –0.3V to 15V
Current Sense Voltage (V CSH –V CSL ) ............... –0.3V to 1V
Sync Pin Voltage (V SYNC ) ................................ –0.3V to 7V
Micrel, Inc.
Operating Ratings (Note 2)
Supply Voltage (V IN A, V IN P) ........................ +2.9V to +14V
Ambient Operating Temperature ......... –40 ° C ≤ T A ≤ +85 ° C
Junction Temperature ....................... –40 ° C ≤ T J ≤ +125 ° C
Output Voltage Range ...................................... 1.3V to 12V
PackageThermal Resistance
θ JA 16-lead SOP ............................................... 100 ° C/W
θ JA 16-lead QSOP ............................................. 163 ° C/W
Freq/2 Pin Voltage (V FREQ/2 ) ............................ -0.3V to 7V
Power Dissipation (P D )
16 lead SOIC ................................. 400mW @ T A = 85 ° C
16 lead QSOP ....................................... 245mW @ 85 ° C
Ambient Storage Temp ............................ –65 ° C to +150 ° C
ESD Rating, Note 3
Electrical Characteristics
V IN A = V IN P = V CSH = 5V, V OUT = 3.3V, V EN/UVLO = 5V, V FREQ/2 = 0V, T J = 25oC, unless otherwise specified. Bold values indicate
–40oC < T J < +125oC.
Parameter
Condition
Min
Typ
Max
Units
Regulation
Feedback Voltage Reference
( ± 1%)
( ± 2%)
1.233
1.22
1.245
1.257
1.27
V
V
Feedback Bias Current
50
nA
Output Voltage Line Regulation
Output Voltage Load Regulation
5V ≤ V IN ≤ 12V
0mV < (V CSH – V CSL ) < 75mV
0.04
0.9
%/V
%
Output Voltage Total Regulation
5V ≤ V IN A ≤ 12V, 0mV < (V CSH – V CSL ) < 75mV ( ± 3%)
1.208
1.282
V
Input & V DD Supply
V IN A Input Current
0.7
mA
V IN P Input Current, Note 4
(Excluding external MOSFET gate current)
1.0
mA
Shutdown Quiescent Current
V EN/UVLO = 0V; (I VINA + I VINP )
0.5
5
μ A
Digital Supply Voltage (V DD )
Digital Supply load regulation
Undervoltage Lockout
I L = 0
I L = 0 to 1mA
V DD upper threshold (turn on threshold)
2.82
3.0
0.03
2.75
3.18
V
V
V
UVLO Hysteresis
Enable/UVLO
100
mV
Enable Input Threshold
0.6
0.9
1.2
V
UVLO Threshold
(turn-on threshold)
1.4
1.5
1.6
V
UVLO Hysteresis
140
mV
Enable Input Current
V EN/UVLO = 5V
0.2
5
μ A
Soft Start
Soft Start Current
Current Limit
5
μ A
Current Limit Threshold Voltage
Voltage on CSH-CSL to trip current limit
100
mV
Error Amplifier
Error Amplifier Gain
Current Amplifier
Current Amplifier Gain
M9999-042205
4
20
3.0
V/V
V/V
April 2005
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