MAX8627 Maxim Integrated Products, MAX8627 Datasheet - Page 3

• Manufacturer Part Number: MAX8627
• Description: Synchronous Boost Converter
• Manufacturer: Maxim Integrated Products

ELECTRICAL CHARACTERISTICS (continued)
(V
noted.)
Note 1: The MAX8627 is powered from OUTS. Once started, the IC operates down to 0.9V.
Note 2: Specifications to -40°C are guaranteed by design and not production tested.
Note 3: The idle-mode current threshold is the transition point between fixed-frequency PWM operation and idle-mode operation.
p-Channel Turn-Off Current
POUT Leakage Current
LX Leakage Current
Soft-Start Interval
Overload Protection Fault Delay
LOGIC INPUTS
ON Input Low Level
ON Input High Level
ON, Input Leakage Current
Thermal Shutdown
OUTS
= V
The specification is given in terms of output load current for an inductor value of 1µH. For a step-up converter, the idle-
mode transition varies with the input-to-output voltage ratio.
PARAMETER
POUT
= 5V, V
Low V
_______________________________________________________________________________________
ON
= V
Boost Converter with True Shutdown
BATT
BATT
V
V
5.5V and V
Output current = 0.5A
1.5V < V
1.8V < V
1.5V < V
1.8V < V
V
ON = 0V or ON = 5.5V
= 3.6V, V
LX
LX
OUTS
= 0V, V
= 0V and V
= V
POUT
POUT
POUT
POUT
ILIM
POUT
OUTS
POUT
, 20µA IQ, 1MHz Synchronous
= GND, T
= V
= V
= V
= V
POUT
= V
= V
= V
OUTS
OUTS
OUTS
OUTS
BATT
POUT
BATT
= 5.5V or V
CONDITIONS
= V
= V
= V
+ V
A
= 5.5V,
= 0V
= 5.5V
= -40°C to +85°C, typical values are at T
BATT
BATT
BATT
BATT
≤ 1.8V
≤ 5.5V
≤ 1.8V
≤ 5.5V
LX
=
T
T
T
T
T
T
A
A
A
A
A
A
= +25°C
= +85°C
= +25°C
= +85°C
= +25°C
= +85°C
V
POUT
MIN
0.2
1.6
-
A
= +25°C, unless otherwise
+160
TYP
5.25
0.01
0.02
0.1
0.2
0.1
0.2
10
65
MAX
0.2
0.5
1
1
1
UNITS
mA
ms
ms
µA
µA
µA
°C
V
V
3