MIC2130 Datasheet, PDF (4/20 Pages) Micrel Semiconductor – High Voltage Synchronous Buck Control IC with Low EMI Option

Micrel, Inc.
MIC2130/1
Absolute Maximum Ratings⁽¹⁾
Supply Voltage (V_IN) .......................................................42V
Boot Strapped Voltage (V_BST).................................. V_IN + 5V
Logic Inputs ...................................................................6.5V
EN Input .........................................................................42V
Ambient Storage Temperature (T_s) ...........–65°C to +150°C
ESD Rating⁽³⁾............................................................... 1.5kV
Operating Ratings⁽²⁾
Supply Voltage (V_IN1, V_IN2)................................ +8V to +40V
Output Voltage Range.................................. 0.7V to 0.85V_IN
Junction Temperature (T_J) ..................–40°C ≤ T_J ≤ +125°C
Package Thermal Resistance
e-TSSOP (θ_JA) ................................................97.5°C/W
e-TSSOP (θ_JC) ................................................29.9°C/W
4x4 MLF-16 (θ_JA) ............................................50.6°C/W
4x4 MLF-16 (θ_JC) ............................................15.8°C/W
Electrical Characteristics⁽⁴⁾
T_J = 25°C; V_EN = V_IN = 24V; Frequency = 150kHz; V_OUT = 3.3V, unless otherwise specified.
Bold values indicate –40°C≤ T_J ≤ +125°C.
Parameter
Condition
Min
V_IN, V_EN/UVLO, V_DD Supply
Total Supply Current,
PWM Mode Supply Current
V_FB = 0.7V; Comp = 3V
(Outputs switching but excluding external MOSFET gate
current.)
Shutdown Current
V_EN = 0V; V_IN = 12V
V_EN/UVLO Turn-On Threshold
V_EN/UVLO Turn-Off Threshold
0.7
V_IN UVLO Hysteresis
Internal Bias Voltages (AV_DD,)
4.6
(I_DD = 50mA)
Oscillator/PWM Section
PWM Frequency
MIC2130/1-1
130
PWM Frequency
MIC2130/1-4
360
Maximum Duty Cycle
MIC2130/1-1
92
Maximum Duty Cycle
MIC2130/1-4
80
Minimum On-Time
Note 5
Regulation
Feedback Voltage Reference (±2%) -40°C to +125°C
686
Feedback Bias Current
Output Voltage
Line Regulation
V_IN = 8V – 40V
Output Voltage
Load Regulation
1A ≤ I_OUT ≤ 10A
Error Amplifier (each channel)
DC Gain
Output Impedance
Transconductance
1.2
Output Over voltage Protection
V_FB Threshold
(Latches LSD High)
110
Delay Blanking Time
Soft Start/HCL
Internal Soft Start
1
Source Current
HCL (MIC2131) Pin Voltage
High
I_LIMIT set to 200% when HCL charges to2.4V
Typ
4
180
1.1
1.0
100
5
150
400
50
700
300
0.03
0.5
70
2
1.6
115
1
2.75
2.4
Max
7.5
300
1.3
5.3
170
440
714
1000
2.5
120
5
Units
mA
µA
V
V
mV
V
kHz
kHz
%
%
ns
mV
nA
%/V
%
dB
MΩ
ms
%Nom
µs
µA
V
April 2008
4
M9999-042108-C