MAX1907A Ver la hoja de datos (PDF) - Maxim Integrated
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MAX1907A
Maxim Integrated
MAX1907A Datasheet PDF : 43 Pages
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Quick-PWM Master Controllers for Voltage-
Positioned CPU Core Power Supplies (IMVP-IV)
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, V+ = 15V, VCC = VDD = VSHDN = VTON = VDPSLP = VBI = VOAIN- = 5V, VFB = VCSP = VCSN = VOAIN+ = VNEG = VPOS
= 1.26V, ILIM = VCC, SUS = D5 = D1= D0 = SO = S1 = S2 = B0 = GND, VD4 = VD3 = VD2 = 1V, VB2 = 2V. TA = -40°C to +100°C, unless
otherwise specified.)
PARAMETER
Input Voltage Range
DC Output Voltage Accuracy
SYMBOL
CONDITIONS
Battery voltage, V+
VCC, VDD
V+ = 4.5V to 28V,
includes load
regulation error
DAC codes from
1.276V to 1.708V
DAC codes from
0.844V to 1.260V
DAC codes from
0.444V to 0.828V
MIN
2
4.5
-1.00
TYP
MAX
28
5.5
UNITS
V
+1.00
-1.5
+1.5
%
-3.5
+3.5
POS, NEG Offset Gain
TIME Frequency Accuracy
AOFF
ΔVFB/(VPOS - VNEG), (VPOS - VNEG) =
100mV, DPSLP = GND
0.95
640kHz nominal, RTIME = 23.5kΩ
580
320kHz nominal, RTIME = 47kΩ
295
64kHz nominal, RTIME = 235kΩ
58
V+ = 5V, VFB = 1.2V, TON = GND
250
(1000kHz)
1.05 mV/mV
700
305
kHz
70
290
On-Time (Note 1)
Minimum Off-Time (Note 1)
BIAS AND REFERENCE
Quiescent Supply Current (VCC)
TON = REF
165
(550kHz)
tON
V+ = 12V,
VFB = 1.2V
TON = open
(300kHz)
320
TON = VCC
(200kHz)
465
tOFF(MIN)
TON = GND (1000kHz)
TON = VCC, open, or REF (200kHz, 300kHz,
or 550kHz)
ICC
Measured at VCC, FB forced above the
regulation point
215
ns
390
565
375
ns
475
ns
2.0
mA
Quiescent Supply Current (VDD)
IDD
Measured at VDD, FB forced above the
regulation
20
µA
Quiescent Battery
Supply Current (V+)
Shutdown Supply Current (VCC)
Shutdown Supply Current (VDD)
Shutdown Battery
Supply Current (V+)
IV+
Measured at V+
Measured at VCC, SHDN = GND
Measured at VDD, SHDN = GND
Measured at V+, SHDN = GND,
VCC = VDD = 0 or 5V
40
µA
20
µA
20
µA
20
µA
6 _______________________________________________________________________________________
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