MIC2571_11 Datasheet, PDF (3/12 Pages) MIC GROUP RECTIFIERS – Single-Cell Switching Regulator Final Information

MIC2571
Absolute Maximum Ratings
Supply Voltage (V_IN) ..................................................... 18V
Switch Voltage (V_SW) .................................................... 36V
Switch Current (I_SW) ....................................................... 1A
Sync Voltage (V_SYNC) .................................... –0.3V to 15V
Storage Temperature (T_A) ....................... –65°C to +150°C
MSOP Power Dissipation (P_D) ................................ 250mW
Micrel
Operating Ratings
Supply Voltage (V_IN) .................................... +0.9V to +15V
Ambient Operating Temperature (T_A) ........ –40°C to +85°C
Junction Temperature (T_J) ....................... –40°C to +125°C
MSOP Thermal Resistance (θ_JA) .......................... 240°C/W
Electrical Characteristics
V_IN = 1.5V; T_A = 25°C, bold indicates –40°C ≤ T_A ≤ 85°C; unless noted
Parameter
Condition
Input Voltage
Startup guaranteed, I_SW = 100mA
Quiescent Current
Output switch off
Fixed Feedback Voltage
Reference Voltage
Comparator Hysteresis
MIC2571-1; V_{2.85V pin} = V_OUT, I_SW = 100mA
MIC2571-1; V_{3.3V pin} = V_OUT, I_SW = 100mA
MIC2571-1; V_{5V pin} = V_OUT, I_SW = 100mA
MIC2571-2, [adj. voltage versions], I_SW = 100mA, Note 1
MIC2571-2, [adj. voltage versions]
Output Hysteresis
Feedback Current
Reference Line Regulation
Switch Saturation Voltage
Switch Leakage Current
Oscillator Frequency
Maximum Output Voltage
MIC2571-1; V_{2.85V pin} = V_OUT, I_SW = 100mA
MIC2571-1; V_{3.3V pin} = V_OUT, I_SW = 100mA
MIC2571-1; V_{5V pin} = V_OUT, I_SW = 100mA
MIC2571-1; V_{2.85V pin} = V_OUT
MIC2571-1; V_{3.3V pin} = V_OUT
MIC2571-1; V_{5V pin} = V_OUT
MIC2571-2, [adj. voltage versions]; V_FB = 0V
1.0V ≤ V_IN ≤ 12V
V_IN = 1.0V, I_SW = 200mA
V_IN = 1.2V, I_SW = 600mA
V_IN = 1.5V, I_SW = 800mA
Output switch off, V_SW = 36V
MIC2571-1, -2; I_SW = 100mA
Sync Threshold Voltage
Switch On Time
Currrent Limit
Duty Cycle
V_FB < V_REF, I_SW = 100mA
General Note: Devices are ESD protected; however, handling precautions are recommended.
Note 1: Measured using comparator trip point.
Min Typ Max Units
15
V
0.9
V
120
µA
2.7 _2.85 3.0
V
3.14 3.30 3.47
V
4.75 5.00 5.25
V
208 220 232 mV
6
mV
65
mV
75
mV
120
mV
4.5
µA
4.5
µA
4.5
µA
25
nA
0.35
%/V
200
mV
400
mV
500
mV
1
µA
20
kHz
36
V
0.7
V
35
µs
1.1
A
67
%
1997
3
MIC2571