LTC3588-1 Datasheet, PDF (3/20 Pages) Linear Technology – Piezoelectric Energy Harvesting Power Supply

LTC3588-1
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
junction temperature range, otherwise specifications are at T_J = 25°C. V_IN = 5.5V unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
V_IN
Input Voltage Range
Low Impedance Source on V_IN
l
18.0
V
I_VIN
V_UVLO
V_IN Quiescent Current
UVLO
Buck Enabled, Sleeping
Buck Enabled, Sleeping
Buck Enabled, Not Sleeping
V_IN Undervoltage Lockout Threshold
V_IN = 2.5V, Not PGOOD
V_IN = 4.5V
V_IN = 18V
I_SW = 0A (Note 4)
V_IN Rising
1.8V Output Selected; D1 = 0, D0 = 0
2.5V Output Selected; D1 = 0, D0 = 1
3.3V Output Selected; D1 = 1, D0 = 0
3.6V Output Selected; D1 = 1, D0 = 1
450 700
nA
950 1500
nA
1.7
2.5
μA
150 250
μA
l 3.77 4.04 4.30
V
l 3.77 4.04 4.30
V
l 4.73 5.05 5.37
V
l 4.73 5.05 5.37
V
V_IN Falling
1.8V Output Selected; D1 = 0, D0 = 0
l 2.66 2.87 3.08
V
2.5V Output Selected; D1 = 0, D0 = 1
l 2.66 2.87 3.08
V
3.3V Output Selected; D1 = 1, D0 = 0
l 3.42 3.67 3.91
V
3.6V Output Selected; D1 = 1, D0 = 1
l 3.75 4.02 4.28
V
V_SHUNT
V_IN Shunt Regulator Voltage
I_VIN = 1mA
19.0 20.0 21.0
V
I_SHUNT
Maximum Protective Shunt Current
1ms Duration
25
mA
Internal Bridge Rectifier Loss
(|V_PZ1 – V_PZ2| – V_IN)
Internal Bridge Rectifier Reverse
Leakage Current
I_BRIDGE = 10μA
V_REVERSE = 18V
350
400
450
mV
20
nA
Internal Bridge Rectifier Reverse
Breakdown Voltage
I_REVERSE = 1μA
V_SHUNT
30
V
V_OUT
Regulated Output Voltage
1.8V Output Selected
Sleep Threshold
Wake-Up Threshold
2.5V Output Selected
Sleep Threshold
Wake-Up Threshold
3.3V Output Selected
Sleep Threshold
Wake-Up Threshold
3.6V Output Selected
Sleep Threshold
Wake-Up Threshold
l
1.812 1.890
V
l 1.710 1.788
V
l
2.512 2.575
V
l 2.425 2.488
V
l
3.312 3.399
V
l 3.201 3.288
V
l
3.612 3.708
V
l 3.492 3.588
V
PGOOD Falling Threshold
As a Percentage of the Selected V_OUT
83
92
%
I_VOUT
Output Quiescent Current
V_OUT = 3.6V
89
150
nA
I_PEAK
Buck Peak Switch Current
200
260
350
mA
I_LOAD
Available Buck Output Current
100
mA
R_P
Buck PMOS Switch On-Resistance
1.1
Ω
R_N
Buck NMOS Switch On-Resistance
1.3
Ω
Max Buck Duty Cycle
l 100
%
V_{IH(D0, D1)}
D0/D1 Input High Voltage
l 1.2
V
V_{IL(D0, D1)}
D0/D1 Input Low Voltage
l
0.4
V
I_{IH(D0, D1)}
D0/D1 Input High Current
10
nA
I_{IL(D0, D1)}
D0/D1 Input Low Current
10
nA
35881f
3