Lo w -Vo lt a g e , P re c is io n S t e p -Do w n
Co n t ro lle r fo r P o rt a b le CP U P o w e r
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V+ = 15V, SYNC = VL = V , I = 0mA, I
= 0mA, T = 0°C to +85°C, unless otherwise noted. Typical values
CC VL
REF
A
are at T = +25°C.)
A
PARAMETER
CONDITIONS
CSH = CSL = 5V, V+ = VL = V
MIN
TYP
MAX
UNITS
Current-Sense Input
Leakage Current
=
CC
10
µA
GND, either CSH or CSL input
Gate-Driver Sink/Source Current
Gate-Driver On-Resistance
DH or DL forced to 2V
High or low, DH or DL
1
A
MAX136
7
Ω
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, V+ = 15V, SYNC = VL = V , I = 0mA, I
= 0mA, T =-40°C to +85°C, unless otherwise noted.) (Note 1)
A
CC VL
REF
PARAMETER
SMPS CONTROLLER
CONDITIONS
MIN
TYP
MAX
UNITS
Input Voltage Range, V+
Input Voltage Range, VL
Input source for VL regulator
Gate-driver supply rail
4.5
4.2
30
5.5
5.5
V
V
V
Input Voltage Range, V
Internal chip supply rail
3.15
CC
FB tied to V
< V+ < 30V (includes line and load regulation)
, 0mV < (CSH - CSL) < 80mV, 4.5V
OUT
Output Voltage, Adj Mode
1.086
2.432
3.195
1.114
2.635
3.497
V
V
V
FB tied to V , 0mV < (CSH - CSL) < 80mV, 4.5V
CC
< V+ < 30V (includes line and load regulation)
Output Voltage, Fixed 2.5V Mode
Output Voltage, Fixed 3.3V Mode
FB tied to GND, 0mV < (CSH - CSL) < 80mV, 4.5V
< V+ < 30V (includes line and load regulation)
V
= VL = 5V
V
5.5
3.6
130
2.0
1.5
CC
REF
Output Adjustment Range
Current-Limit Threshold
Power Consumption
V
V
CC
= 3.3V, VL = 5V
V
REF
Positive direction
70
mV
mW
V
CC
= 5V, output not switching
= 3.3V, output not switching
V
CC
INTERNAL VL REGULATOR AND REFERENCE
= 5V, I(VL) = 0
V
CC
60
Regulator Supply Current (V+)
µA
V
= 5V, I(VL) = 0, V+ = 4.5V
CC
500
(includes PNP base current)
Standby Supply Current (V+)
VL Output Voltage
60
5.3
5.3
µA
V
SHDN = GND, OVP = V
CC
I(VL) = 0 to 25mA, 5V < V+ < 30V
I(VL) = 0 to 25mA, 6V < V+ < 30V
4.5
4.7
VL Undervoltage Lockout
Threshold
Rising edge, hysteresis = 25mV
3.45
3.91
V
4
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MAXIM [ MAXIM INTEGRATED PRODUCTS ]
