LTC3335_15 Datasheet, PDF (4/28 Pages) Linear Technology – Nanopower Buck-Boost DC/DC with Integrated Coulomb Counter

LTC3335
Electrical Characteristics The l denotes the specifications which apply over the full operating junction
temperature range, otherwise specifications are at T_A = 25°C (Note 2). BAT = PBAT = 3.6V, GNDA = GNDD = PGND = 0V, V_OUT = PV_OUT.
PARAMETER
CONDITIONS
MIN
TYP
MAX UNITS
PMOS Switch A On-Resistance
(From PBAT to SW1)
NMOS Switch B On-Resistance
(From SW1 to PGND)
NMOS Switch C On-Resistance
(From SW2 to PGND)
250mA I_PEAK Setting
150mA I_PEAK Setting
100mA I_PEAK Setting
50mA I_PEAK Setting
25mA I_PEAK Setting
15mA I_PEAK Setting
10mA I_PEAK Setting
5mA I_PEAK Setting
250mA I_PEAK Setting
150mA I_PEAK Setting
100mA I_PEAK Setting
50mA I_PEAK Setting
25mA I_PEAK Setting
15mA I_PEAK Setting
10mA I_PEAK Setting
5mA I_PEAK Setting
IPK[2:0] = 1xx
IPK[2:0] = 0xx
0.45
Ω
0.59
Ω
0.79
Ω
1.38
Ω
2.57
Ω
4.15
Ω
6.05
Ω
11.65
Ω
0.6
Ω
1
Ω
1.5
Ω
3
Ω
6
Ω
10
Ω
15
Ω
30
Ω
0.2
Ω
2
Ω
PMOS Switch D On-Resistance
(From PV_OUT to SW2)
PV_OUT = V_OUT = 3.3V
PMOS Switch Leakage
NMOS Switch Leakage
Coulomb Counter
250mA I_PEAK Setting
150mA I_PEAK Setting
100mA I_PEAK Setting
50mA I_PEAK Setting
25mA I_PEAK Setting
15mA I_PEAK Setting
10mA I_PEAK Setting
5mA I_PEAK Setting
Switches A, D
SW1 = SW2 = 0V, BAT = 5.5V, V_OUT = 5.5V
Switches B, C
SW1 = BAT = 5.5V, SW2 = V_OUT = 5.5V
0.7
Ω
0.9
Ω
1.2
Ω
2.1
Ω
3.9
Ω
6.3
Ω
9.2
Ω
17.7
Ω
0
10
nA
0
10
nA
q_LSB (for Prescaler setting M=0) 250mA I_PEAK Setting
(Notes 8,9)
150mA I_PEAK Setting
100mA I_PEAK Setting (Note 10)
l
50mA I_PEAK Setting
25mA I_PEAK Setting
15mA I_PEAK Setting
10mA I_PEAK Setting
5mA I_PEAK Setting
Full-Scale Coulomb Count
5mA I_PEAK Setting, M=15, L = 2.2mH; (Smallest Battery)
(Battery Capacity)
100mA I_PEAK Setting, M = 8, L = 100μH
l
250mA I_PEAK Setting, M = 0, L = 47μH; (Largest Battery)
Total Unadjusted Coulomb Counter Buck-Boost Switching, 100mA I_PEAK Setting, V_OUT = 3.3V, BAT = 3.6V l
Error (Note 10)
Buck-Boost Switching, 100mA I_PEAK Setting, V_OUT = 3.3V, BAT = 1.8V l
Buck-Boost Switching, 100mA I_PEAK Setting, V_OUT = 3.3V, BAT = 5.5V l
Digital Inputs and Output
2.728
2.717
–5
–7
–8
7.031
4.218
2.812
1.406
703.1
421.8
281.2
140.6
1.094
2.801
1793
2.896
2.885
5
5
5
A • hr
A • hr
A • hr
A • hr
mA • hr
mA • hr
mA • hr
mA • hr
mA • hr
A • hr
A • hr
%
%
%
DV_CC Voltage
Digital Input High Voltage
For Pins EN, IPK[2:0], OUT[2:0]
For Pins SDA, SCL
l 1.8
l BAT – 0.5
70
5.5
V
V
%DV_CC
3335p
4
LINEAR_FoT_{r m}E_oC_{re i}H_nfoN_rmO_atiL_onO_wwG_wY_.lineaC_r.cO_omN_/LTF_C3I₃D₃₅ENTIAL