ZSPM1025A
True Digital PWM Controller (Single-Phase, Single-Rail)
PARAMETER
Output current – high
Output current – low
SYMBOL
CONDITIONS
MIN
2.0
0
TYP
MAX
2.0
UNITS
mA
2.0
mA
Tri-state leakage current
±1.0
µA
SMBus pins (SCL, SDA, SMBALERT) – open drain
Input high voltage
Input low voltage
Maximum bus voltage
Output current – low
Output voltage*
VDD33=3.3 V
VDD33=3.3 V
V
V
0.8
5.25
2.0
V
mA
Set-point voltage
Set-point resolution
Set-point accuracy
1.4
V
mV
%
1.4
1
VOUT=1.2 V
*Without external voltage divider (see section 3.3.2)
Inductor current measurement
Common mode voltage — ISNSP
0
5.0
V
and ISNSN pins relative to AGND
Differential voltage range across
ISNSP and ISNSN pins
±100
mV
Accuracy
5
%
Recommended DCR sense
voltage for maximum output
current
10
mV
Digital pulse width modulator
Switching frequency
Resolution
fSW
500
163
2.0
kHz
ps
Frequency accuracy
Over-voltage protection
Reference DAC
Set-point voltage
Resolution
%
0
1.58
V
mV
%
25
2
Set point accuracy
Comparator
Hysteresis
35
mV
© 2013 Zentrum Mikroelektronik Dresden AG — Rev. 1.00
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Data Sheet
October 24, 2013
10 of 46
ETC [ ETC ]
