MAX8561ETA+T Maxim Integrated Products, MAX8561ETA+T Datasheet - Page 3

• Manufacturer Part Number: MAX8561ETA+T
• Description: IC DC-DC CONV ADJ 500MA 8-TDFN
• Manufacturer: Maxim Integrated Products
• Type: Step-Down (Buck)r

Specifications of MAX8561ETA+T

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.6 ~ 2.5 V
• Current - Output: 500mA
• Frequency - Switching: 4MHz
• Voltage - Input: 2.7 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-TDFN Exposed Pad
• Power - Output: 1.95W
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ELECTRICAL CHARACTERISTICS (continued)
(V
(V
ODO Pullup to IN (MAX8562 Only)
Open-Drain Output Leakage
Current Limit
On-Resistance
Rectifier-Off Current Threshold
LX Leakage Current
Minimum On- and Off-Times
Thermal Shutdown
Thermal-Shutdown Hysteresis
IN
IN
100
90
80
70
60
50
40
= 3.6V, SHDN = IN, T
= 3.6V, V
0.1
EFFICIENCY vs. LOAD CURRENT
PARAMETER
OUT
1
4.7µH
LOAD CURRENT (mA)
(V
= 1.2V, L = 1µH (LQH32CN1R0M53), C
OUT
DC-DC Converters in Thin SOT and TDFN
_______________________________________________________________________________________
2.2µH
10
= 2.5V)
4MHz, 500mA Synchronous Step-Down
A
= -40°C to +85°C, typical values are at T
100
1µH
SYMBOL
t
I
t
OFF(MIN)
OHLEAK
ON(MIN)
1000
I
I
R
R
LXLKG
I
LXOFF
I
LIMN
LIMP
ONP
ONN
100
90
80
70
60
50
40
V
V
PFET switch
NFET rectifier
PFET switch, I
NFET rectifier, I
V
T
V
T
A
A
IN
IN
IN
IN
0.1
= +25°C, SHDN = GND
= +85°C, SHDN = GND
= 5.5V, LX = GND to IN, ODO = IN,
= 5.5V, LX = GND to IN, ODO = IN,
= 5.5V, ODO = IN, T
= 5.5V, ODO = IN, T
EFFICIENCY vs. LOAD CURRENT
OUT
4.7µH
1
LOAD CURRENT (mA)
= 2.2µF, T
(V
LX
CONDITIONS
LX
OUT
2.2µH
= -40mA
= +40mA
10
= 1.8V)
A
= +25°C, unless otherwise noted.) (Note 1)
Typical Operating Characteristics
A
A
A
1µH
= +25°C, unless otherwise noted.)
= +25°C
= +85°C
100
1000
100
90
80
70
60
50
40
0.1
MIN
600
490
5
0
EFFICIENCY vs. LOAD CURRENT
4.7µH
1
+160
LOAD CURRENT (mA)
TYP
0.01
990
680
107
0.1
0.8
0.4
0.1
10
30
95
20
(V
1
OUT
2.2µH
10
= 1.5V)
MAX
1500
0.82
900
0.1
1.5
20
60
1
1µH
100
UNITS
mA
mA
kΩ
µA
µA
ns
°C
°C
Ω
1000
3