MIC2196_08 Datasheet, PDF (3/12 Pages) Micrel Semiconductor – 400kHz SO-8 Boost Control IC

Micrel, Inc.
MIC2196
Absolute Maximum Ratings⁽¹⁾
Supply Voltage (V_IN) .......................................................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_CS)........................... –0.3V to +1V
Power Dissipation (P_D) ....................... 285mW @ T_A = 85°C
Ambient Storage Temperature (T_s) ...........–65°C to +150°C
ESD Rating⁽³⁾.................................................................. 2kV
Operating Ratings⁽²⁾
Supply Voltage (V_IN)...................................... +2.9V to +14V
Junction Temperature .........................–40°C ≤ T_J ≤ +125°C
Package Thermal Resistance
SOIC-8 (θ_JA).....................................................140°C/W
Electrical Characteristics
V_IN = 5V; V_OUT = 12V; T_A = 25°C. Bold values indicate –40°C ≤ T_J ≤ +125°C, unless noted.
Parameter
Condition
Min
Regulation
Feedback Voltage Reference
Feedback Bias Current
(±1%)
(±2%)
1.233
1.220
Output Voltage Line Regulation
Output Voltage Load Regulation
Output Voltage Total Regulation
Input & V_DD Supply
V_IN Input Current (I_Q)
Shutdown Quiescent Current
Digital Supply Voltage (V_DD)
Digital Supply Load Regulation
Undervoltage Lockout
UVLO Hysteresis
3V ≤ V_IN ≤ 9V
0mV ≤ V_CS ≤ 75mV
3V ≤ V_IN ≤ 9V; 0mV ≤ V_CS ≤ 75mV (±3%)
(excluding external MOSFET gate current)
V_EN/UVLO = 0V
I_L = 0
I_L = 0 to 5mA
V_DD upper threshold (turn on threshold)
1.208
2.82
Enable/UVLO
Enable Input Threshold
0.6
UVLO Threshold
1.4
Enable Input Current
V_EN/UVLO = 5V
Current Limit
Current Limit Threshold Voltage (Voltage on CS to trip current limit)
90
Error Amplifier
Error Amplifier Gain
Current Amplifier
Current Amplifier Gain
Oscillator Section
Oscillator Frequency (f_O)
360
Maximum Duty Cycle
V_FB = 1.0V
Minimum On Time
V_FB = 1.5V
Frequency Foldback Threshold Measured on FB
Frequency Foldback Frequency
Typ Max Units
1.245 1.258 V
1.245 1.270 V
50
nA
+0.08
%/V
-1.2
%
1.282 V
1
2
mA
0.5
5
µA
3.0
3.18
V
0.1
V
2.65
V
100
mV
0.9
1.2
V
1.5
1.6
V
0.2
5
µA
110
130
mV
20
V/V
3.7
V/V
400
440
kHz
85
%
165
ns
0.3
V
90
kHz
September 2008
3
M9999-092908