UM3506QA Datasheet, PDF (3/9 Pages) Union Semiconductor, Inc. – Synchronous Step-Down Converter

UM3506QA
Absolute Maximum Ratings (Note 1)
Symbol
Parameter
Value
Unit
V_IN, V_OUT Input and Output Voltages
-0.3 to +6.0
V
V_EN, V_FB EN, FB Voltages
-0.3 to V_IN+0.3
V
V_SW SW Voltage
-0.3 to V_IN+0.3
V
I_SW
Peak SW Sink and Source Current
1.5
A
T_O
Operating Temperature
-40 to +85
°C
T_STG Storage Temperature Range
-65 to +150
°C
T_REFLOW
Reflow Temperature,
MSL3 JEDEC J-STD-020C, 10 Sec
260
°C
Note 1: Stresses greater than those listed under Maximum Ratings may cause permanent damage
to the device. This is a stress rating only and functional operation of the device at these or any
other conditions above those indicated in the operational sections of this specification is not
implied. Exposure to absolute maximum rating conditions for extended periods may affect
reliability.
Electrical Characteristics (Note 2)
(V_IN=V_EN=3.6V, T_A=+25°C, C_IN=4.7μF, C_OUT=10μF, unless otherwise noted)
Symbol
Parameter
Test Conditions
Min Typ Max Unit
V_IN
Input Voltage Range
2.5
5.5
V
V_OUT
Output Voltage Range
0.6
5
V
I_O(max)
Maximum Output Current
600
mA
I_Q
(Active)
Input DC Supply Current
(Active Mode)
V_FB=0.6V, I_LOAD=0A
60
μA
I_Q
(Shutdown)
Input DC Supply Current
(Shutdown Mode)
V_EN=0V
0.1
1.0
μA
0.5880 0.6000 0.6120
V_FB
Feedback Voltage
V
T_A=-40°C~85°C 0.5830 0.6000 0.6150
I_FB
FB Input Bias Current
V_FB=0.65V
±30 nA
f
R_DS(ON)
Oscillator Frequency
R_DS(ON) of P-CH MOSFET
R_DS(ON) of N-CH MOSFET
V_FB=0.6V or
V_OUT=100%
V_IN=3.6V,
I_SW=100mA
V_IN=3.6V,
I_SW=-100mA
2.25
MHz
0.3
Ω
0.2
Ω
Internal Inductor DCR
0.2
Ω
I_SWL
SW Leakage
V_EN=0V, V_IN=5V,
V_SW=0V or 5V
±0.01 ±1
μA
V_H
EN High-Level Threshold
-40ºC≤T_A≤85ºC
1.0
V
V_L
EN Low-Level Threshold
-40ºC≤T_A≤85ºC
0.4
V
I_ENL
EN Leakage Current
±0.1 ±1
μA
Thermal Shutdown
Temperature
160
ºC
Thermal Shutdown Trip Point
Hysteresis
25
ºC
Note 2: 100% production test at +25ºC. Specifications over the temperature range are guaranteed
by design and characterization.
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http://www.union-ic.com Rev.01 Oct.2016
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