MAX1586A Datasheet, PDF (3/32 Pages) Maxim Integrated Products – High-Efficiency, Low-IQ PMICs with Dynamic Core for PDAs and Smart Phones

High-Efficiency, Low-I_Q PMICs with
Dynamic Core for PDAs and Smart Phones
ELECTRICAL CHARACTERISTICS (continued)
(V_IN = 3.6V, V_BKBT = 3.0V, V_LBI = 1.1V, V_DBI = 1.35V, circuit of Figure 5, T_A = 0°C to +85°C, unless otherwise noted. Typical values
are at T_A = +25°C.)
PARAMETER
P-Channel On-Resistance
N-Channel On-Resistance
Current-Sense Transresistance
P-Channel Current-Limit Threshold
CONDITIONS
I_LX1 = -180mA
I_LX1 = -180mA, V_PV1 = 2.6V
I_LX1 = 180mA
I_LX1 = 180mA, V_PV1 = 2.6V
MIN
-1.55
TYP
0.18
0.21
0.13
0.15
0.5
-1.80
MAX
0.3
0.35
0.225
0.25
-2.10
UNITS
Ω
Ω
V/A
A
PWM Skip-Mode Transition Load
Current
Decreasing load current (Note 2)
OUT1 Maximum Output Current
2.6V ≤ V_PV1 ≤ 5.5V (Note 3)
LX1 Leakage Current
V_PV1 = 5.5V, LX1 = GND or PV1, V_ON1 = 0V
SYNCHRONOUS-BUCK PWM REG2
FB2 = GND, 3.6V ≤ V_PV2 ≤ 5.5V, load = 0 to 900mA
REG2 Voltage Accuracy
MAX1586A, MAX1587A, FB2 = IN, 3.6V ≤ V_PV2 ≤ 5.5V,
load = 0 to 900mA
30
mA
1.20
A
-20 +0.1 +20 µA
2.463 2.5 2.537
1.773 1.8 1.827
V
MAX1586B, FB2 = IN, 3.6V ≤ V_PV2 ≤ 5.5V,
load = 0 to 900mA
3.25 3.3 3.35
FB2 Voltage Accuracy
FB2 used with external resistors, 3.6V ≤ V_PV2 ≤ 5.5V,
load = 0 to 900mA
1.231 1.25 1.269 V
FB2 Input Current
Error-Amplifier Transconductance
Dropout Voltage
P-Channel On-Resistance
N-Channel On-Resistance
Current-Sense Transresistance
P-Channel Current-Limit Threshold
FB2 used with external resistors, V_FB2 = 1.25V
Referred to FB
Load = 900mA (Note 1)
I_LX2 = -180mA
I_LX2 = -180mA, VPV2 = 2.6V
I_LX2 = 180mA
I_LX2 = 180mA, VPV2 = 2.6V
100
nA
87
µS
243 380 mV
0.225 0.375
Ω
0.26 0.425
0.15 0.25
Ω
0.17 0.275
0.75
V/A
-1.1 -1.275 -1.50 A
PWM Skip-Mode Transition Load
Current
Decreasing load current (Note 2)
30
mA
OUT2 Maximum Output Current
2.6V ≤ V_{PV2_} ≤ 5.5V (Note 3)
LX2 Leakage Current
V_{PV2_} = 5.5V, LX2 = GND or PV2, V_ON2 = 0V
SYNCHRONOUS-BUCK PWM REG3
0.9
A
-10 +0.1 +10 µA
REG3 Output Voltage Accuracy
REG3 from 1.3V to 1.475V, 2.6V ≤ V_PV3_ ≤ 5.5V,
load = 0 to 400mA
REG3 from 0.70V to 1.275V, 2.6V ≤ V_PV3_≤ 5.5V,
load = 0 to 500mA
-1.5
+1.5
%
-2
+2
Error-Amplifier Transconductance
68
µS
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