LTC3588-2_10 Datasheet, PDF (3/18 Pages) Linear Technology – Piezoelectric Energy Harvesting Power Supply with 14V Minimum VIN

LTC3588-2
Electrical Characteristics The l denotes the specifications which apply over the full operating
junction temperature range, otherwise specifications are for T_A = 25°C (Note 2). V_IN = 18V 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_Q
V_UVLO
V_SHUNT
I_SHUNT
V_IN Quiescent Current
UVLO
Buck Enabled, Sleeping
Buck Enabled, Not Sleeping
V_IN Undervoltage Lockout Threshold
V_IN Shunt Regulator Voltage
Maximum Protective Shunt Current
Internal Bridge Rectifier Loss
(|V_PZ1 – V_PZ2| – V_IN)
Internal Bridge Rectifier Reverse
Leakage Current
V_IN = 12V, Not PGOOD
V_IN = 18V
I_SW = 0A (Note 4)
V_IN Rising
V_IN Falling
I_VIN = 1mA
1ms Duration
I_BRIDGE = 10µA
V_REVERSE = 18V
830 1400
nA
1500 2500
nA
150
250
µA
l
16.0 17.0
V
l 13.0 14.0
V
18.8 20.0 21.2
V
25
mA
350
400
450
mV
20
nA
Internal Bridge Rectifier Reverse
Breakdown Voltage
I_REVERSE = 1µA
V_SHUNT
30
V
V_OUT
Regulated Output Voltage
3.45V Output Selected
Sleep Threshold
Wake-Up Threshold
4.1V Output Selected
Sleep Threshold
Wake-Up Threshold
4.5V Output Selected
Sleep Threshold
Wake-Up Threshold
5.0V Output Selected
Sleep Threshold
Wake-Up Threshold
l
3.466 3.554
V
l 3.346 3.434
V
l
4.116 4.221
V
l 3.979 4.084
V
l
4.516 4.646
V
l 4.354 4.484
V
l
5.016 5.175
V
l 4.825 4.984
V
I_VOUT
I_PEAK
I_BUCK
PGOOD Falling Threshold
Output Quiescent Current
Buck Peak Switch Current
Available Buck Output Current
As a Percentage of the Selected V_OUT
V_OUT = 5.0V
83
92
%
125
250
nA
200
260
350
mA
100
mA
R_P
Buck PMOS Switch On-Resistance
1.1
Ω
R_N
Buck NMOS Switch On-Resistance
Max Buck Duty Cycle
1.3
Ω
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)}
I_{IL(D0, D1)}
D0/D1 Input High Current
D0/D1 Input Low Current
10
nA
10
nA
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LTC3588E-2 is tested under pulsed load conditions such
that T_J ≈ T_A. The LTC3588E-2 is guaranteed to meet specifications
from 0°C to 85°C junction temperature. Specifications over the –40°C
to 125°C operating junction temperature range are assured by design,
characterization and correlation with statistical process controls. The
LTC3588I-2 is guaranteed over the –40°C to 125°C operating junction
temperature range. Note that the maximum ambient temperature
consistent with these specifications is determined by specific operating
conditions in conjunction with board layout, the rated package thermal
impedance and other environmental factors.
Note 3: The junction temperature (T_J, in °C) is calculated from the ambient
temperature (T_A, in °C) and power dissipation (P_D, in Watts) according
to the formula: T_J = T_A + (P_D • θ_JA), where θ_JA (in °C/W) is the package
thermal impedance.
Note 4: Dynamic supply current is higher due to gate charge being
delivered at the switching frequency.
35882fa
3