MAX1956ETI Maxim Integrated Products, MAX1956ETI Datasheet - Page 3

• Manufacturer Part Number: MAX1956ETI
• Description: DC/DC Switching Controllers
• Manufacturer: Maxim Integrated Products

Specifications of MAX1956ETI

• Number Of Outputs: 2
• Output Voltage: 0.8 V to 4.95 V
• Input Voltage: 1.6 V to 5.5 V
• Package / Case: TQFN EP-28
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

ELECTRICAL CHARACTERISTICS (continued)
(V
wise noted. Typical values are at T
V
IN Supply Current
IN Shutdown Supply Current
REF Voltage
REF Load Regulation
Default Current-Limit Threshold
Adjustable Current-Limit
Threshold
Thermal-Shutdown Threshold
DH_ Gate-Driver
On-Resistance
DL_ Gate-Driver Pullup
On-Resistance
DL_ Gate-Driver Pulldown
On-Resistance
Dead Time (Adaptive)
SYNC Minimum Pulse Width
EN Voltage Range for Nominal
Output Voltage
EN Voltage Range for Positive
Voltage Margining
EN Voltage Range for Negative
Voltage Margining
EN Voltage Range for Shutdown
EN, SEQ, SYNC Input High
Voltage
SEQ, SYNC Input Low Voltage
EN, SEQ, SYNC Input Current
BST_ Leakage Current in
Shutdown
V
IN
DD
DD
= V
No-Load Supply Current
Output Voltage
EN
PARAMETER
= 3.3V; V
VDD
_______________________________________________________________________________________
180° Out-of-Phase Step-Down Controllers
= V
1.6V to 5.5V Input, 0.5% Accurate, Dual
AVDD
A
= 5V; V
Total of VDD1 + VDD2 + AVDD current, SYNC = GND,
no load on DH_ or DL_
I
ILIM_ = V
Measured from PGND to LX_
T
Pulling up or down
DL_ high state
DL_ low state
DH_ falling to DL_ rising
DL_ falling to DH_ rising
High or low
Percentage of V
Percentage of V
Percentage of V
Percentage of V
(Note 4)
I
= +25°C.)
REF
VDD
J
rising, 15°C hysteresis
= -50µA to +50µA
= 0 to 150mA
PGND
DD
= V
, measured from PGND to LX_
GND
IN
IN
IN
IN
= 0; C
CONDITIONS
REF
= 0.22µF; SEQ = SYNC = GND; T
R
R
ILIM_
ILIM_
= 100kΩ
= 400kΩ
V
1.267
127.5
IN
MIN
4.75
240
200
-20
60
80
55
30
-1
0
- 0.5
A
= 0°C to +85°C, unless other-
TYP
1.28
0.35
150
300
160
20
35
75
23
26
90
1
1
1.293
172.5
MAX
0.01
0.65
5.50
+20
100
360
100
1.8
1.8
0.5
+1
32
20
90
70
45
20
UNITS
mA
mV
mV
µA
µA
°C
µA
µA
ns
ns
%
%
%
%
Ω
Ω
Ω
V
V
V
V
V
3