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MAX5037 Datasheet, PDF (3/30 Pages) Maxim Integrated Products – VRM 9.0, Dual-Phase, Parallelable, Average Current-Mode Controller
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VRM 9.0, Dual-Phase, Parallelable,
Average Current-Mode Controller
ELECTRICAL CHARACTERISTICS (continued)
(VCC = VDD = +5V, circuit of Figure 1, TA = -40°C to +85°C, unless otherwise noted. Typical specifications are at TA = +25°C.)
(Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Non-Overlap Time
OSCILLATOR AND PLL
tNO
CDH_/DL_ = 5nF
60
ns
Switching Frequency
PLL Lock Range
PLL Locking Time
CLKOUT Phase Shift
(at fSW = 125kHz)
fSW
fPLL
tPLL
φCLKOUT
CLKIN = SGND
CLKIN = VCC
PHASE = VCC
PHASE = unconnected
PHASE = SGND
238
250
262
kHz
475
500
525
125
600
kHz
200
µs
115
120
125
85
90
95 degrees
55
60
65
CLKIN Input Pulldown Current
CLKIN High Threshold
CLKIN Low Threshold
CLKIN High Pulse Width
PHASE High Threshold
PHASE Low Threshold
PHASE Input Bias Current
CLKOUT Output Low Level
CLKOUT Output High Level
CURRENT LIMIT
ICLKIN
VCLKINH
VCLKINL
tCLKIN
VPHASEH
VPHASEL
IPHASEBIAS
VCLKOUTL ISINK = 2mA (Note 3)
VCLKOUTH ISOURCE = 2mA (Note 3)
3
5
7
µA
2.4
V
0.8
V
200
ns
4
V
1
V
-50
+50
µA
100
mV
4.5
V
Average Current-Limit Threshold
Cycle-by-Cycle Current Limit
VCL
VCLPK
CSP_ to CSN_
CSP_ to CSN_ (Note 4)
45
48
51
mV
90
112
130
mV
Cycle-by-Cycle Overload
Response Time
tR
VCSP_ to VCSN_ = 150mV
260
ns
CURRENT-SENSE AMPLIFIER
CSP_ to CSN_ Input Resistance
RCS_
Common-Mode Range
VCMR(CS)
Input Offset Voltage
VOS(CS)
Amplifier Gain
AV(CS)
3dB Bandwidth
f3dB
CURRENT-ERROR AMPLIFIER (TRANSCONDUCTANCE AMPLIFIER)
4
kΩ
-0.3
+3.6
V
-1
+1
mV
18
V/V
4
MHz
Transconductance
gmca
Open-Loop Gain
AVOL(CE) No load
DIFFERENTIAL VOLTAGE AMPLIFIER (DIFF)
550
µS
50
dB
Common-Mode Voltage Range
DIFF Output Voltage
Input Offset Voltage
Amplifier Gain
3dB Bandwidth
Minimum Output Current Drive
VCMR(DIFF)
VCM
VSENSE+ = VSENSE- = 0
VOS(DIFF)
AV(DIFF)
f3dB
CDIFF = 20pF
IOUT(DIFF)
-0.3
+1.0
V
0.6
V
-1
+1
mV
0.997
1
1.003 V/V
3
MHz
1.0
mA
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