LTC1877EMS8#PBF Linear Technology, LTC1877EMS8#PBF Datasheet - Page 4

• Manufacturer Part Number: LTC1877EMS8#PBF
• Description: IC REG STP-DWN SYNC HI-EFF 8MSOP
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LTC1877EMS8#PBF

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.8 ~ 10 V
• Current - Output: 600mA
• Frequency - Switching: 550kHz
• Voltage - Input: 2.65 ~ 10 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
• Primary Input Voltage: 10V
• No. Of Outputs: 1
• Output Voltage: 10V
• Output Current: 600mA
• No. Of Pins: 8
• Operating Temperature Range: -40°C To +85°C
• Msl: MSL 1 - Unlimited
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -

LTC1877
TYPICAL PERFORMANCE CHARACTERISTICS
4
605
595
585
575
565
555
545
535
525
515
505
495
1.4
1.2
1.0
0.8
0.6
0.4
0.2
95
90
85
80
75
70
65
60
55
50
–50
0.1
0
Effi ciency vs Output Current
Oscillator Frequency
vs Supply Voltage
R
DS(ON)
–25
V
2
IN
V
= 3.6V
1.0
OUTPUT CURRENT (mA)
vs Temperature
IN
V
SUPPLY VOLTAGE (V)
0
IN
TEMPERATURE (°C)
= 3V
4
SYNCHRONOUS SWITCH
MAIN SWITCH
= 5V
V
25
IN
= 7.2V
10
6
50
V
8
IN
75
V
L = 10μH
V
= 10V
100
IN
OUT
= 5V
10
100
= 2.5V
1877 G04
1877 G10
1877 G07
1000
125
12
0.814
0.809
0.804
0.799
0.794
0.789
0.784
2.53
2.52
2.51
2.50
2.49
2.48
2.47
2.46
2.45
2.44
2.43
250
200
150
100
50
0
–50
0
0
Reference Voltage vs Temperature
Output Voltage vs Load Current
DC Supply Current vs Input Voltage
V
V
PULSE-SKIPPING MODE
V
L = 10μH
IN
OUT
IN
–25
= 5V
= 4.2V
= 1.8V
2
200
0
LOAD CURRENT (mA)
TEMPERATURE (°C)
INPUT VOLTAGE (V)
PULSE-SKIPPING MODE
Burst Mode OPERATION
4
25
400
50
6
75
600
8
100
1877 G05
1877 G08
1877 G11
125
800
10
605
595
585
575
565
555
545
535
525
515
505
495
300
250
200
150
100
1.2
1.0
0.8
0.6
0.4
0.2
50
0
0
–50
–50
0
Oscillator Frequency
vs Temperature
R
DC Supply Current vs Temperature
V
DS(ON)
V
IN
IN
1
–25
–25
= 5V
= 5V
2
Burst Mode OPERATION
PULSE-SKIPPING MODE
vs Input Voltage
0
0
TEMPERATURE (°C)
3
INPUT VOLTAGE (V)
TEMPERATURE (°C)
MAIN SWITCH
4
25
25
SWITCH
SYNCHRONOUS
5
50
50
6
75
7
75
8
100
100
1877 G11b
1877 G06
1877 G09
9
1877fa
125
125
10