UM3510_16 Datasheet, PDF (4/13 Pages) Union Semiconductor, Inc. – 1A, 2.25MHz, Synchronous Step-Down DC-DC Converter

UM3510
Electrical Characteristics
(V_IN=V_EN=3.6V, T_A=+25ºC, unless otherwise noted)
Symbol
Parameter
Test Conditions
SUPPLY
V_IN
UVLO
UVLO_HYS
I_Q
I_SD
Input Voltage Range
Under Voltage Lockout
Threshold
Under Voltage Lockout
Hysteresis
Input DC Supply
Current (MODE=GND)
Input DC Supply
Current (MODE=VIN)
Input Supply Current
(Shutdown Mode)
Falling Edge
I_LOAD=0mA
I_LOAD=0mA
V_FB=0V, V_IN=6.0V
OUTPUT
V_FB
Regulated Feedback
Voltage
T_A=+25ºC
I_FB
I_O(MAX)
FB Input Bias Current
Output Voltage Line
Regulation
Output Voltage Load
Regulation
Maximum Output
Current
V_FB=0.65V
2.5V≤V_IN≤6.0V,
I_OUT=10mA,
MODE=V_IN/GND
0.1A≤I_OUT≤1A
t_SS
Soft Start Time
I_SWL
SW Leakage
POWER SWITCH
V_EN=0V, V_IN=6V,
V_SW=0V or 6V
R_DS(ON)
I_P
R_DS(ON) of P-CH
MOSFET
R_DS(ON) of N-CH
MOSFET
Peak Inductor Current
Thermal Shutdown
Temperature
Thermal Shutdown
Temperature Hysteresis
V_IN=3.6V,
I_SW=100mA
V_IN=3.6,
I_SW=-100mA
V_IN=2.5V to 6.0V
OSILLATOR
f
Oscillator Frequency
ENABLE, MODE
V_IH
High-Level Threshold
V_IL
Low-Level Threshold
I_I
Input Leakage Current
Min
2.5
1.8
0.588
1000
1.6
1.95
1.2
Typ
200
56
5.6
0.1
0.600
0.10
0.5
400
±0.01
0.25
0.18
1.8
150
20
2.25
0.1
Max
6.0
2.3
80
1.0
0.612
30
0.20
±1
0.30
0.23
2.0
2.55
0.4
1
Unit
V
V
mV
μA
mA
μA
V
nA
%/V
%/A
mA
μs
μA
Ω
Ω
A
ºC
ºC
MHz
V
V
μA
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http://www.union-ic.com Rev.01 Jan.2016
4/13