ISL85001IRZ Intersil, ISL85001IRZ Datasheet - Page 9

• Manufacturer Part Number: ISL85001IRZ
• Description: IC REG PWM BUCK 1A 12-DFN
• Manufacturer: Intersil
• Type: Step-Down (Buck), PWM - Voltage Moder

Specifications of ISL85001IRZ

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 0.6 ~ 19 V
• Current - Output: 1A
• Frequency - Switching: 500kHz
• Voltage - Input: 4.5 ~ 25 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: *
• Package / Case: 12-DFN
• Voltage - Supply: 4.5 V ~ 25 V
• Frequency-max: 550kHz
• Duty Cycle: 80%
• Pwm Type: Voltage Mode
• Buck: Yes
• Boost: No
• Flyback: No
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: No
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Typical Performance Curves
PG 5V/DIV
FIGURE 16. SOFT-START AT FULL LOAD (2ms/DIV)
V
1V/DIV
FIGURE 18. OUTPUT SHORT CIRCUIT (5µs/DIV)
OUT
V
2V/DIV
FIGURE 14. LOAD TRANSIENT (200µs/DIV)
OUT
EN 5V/DIV
I
PHASE 10V/DIV
I
L
V
100mV/DIV
L
OUT
1A/DIV
0.5A/DIV
RIPPLE
9
PHASE 10V/DIV
I
L
0.5A/DIV
C9 = 10µF, C11 = 47µF, I
Unless otherwise noted, operating conditions are: T
SS 5V/DIV
PG 5V/DIV
ISL85001
OUT
= 0A to 1A. See “VIN (Pins 11, 12)” on page 6. (Continued)
FIGURE 19. OUTPUT SHORT CIRCUIT RECOVERY (1ms/DIV)
V
2V/DIV
I
I
V
1V/DIV
L
L
EN 5V/DIV
OUT
OUT
1A/DIV
1A/DIV
FIGURE 15. SOFT-START AT NO LOAD (2ms/DIV)
FIGURE 17. SHUT DOWN CIRCUIT (100µs/DIV)
A
= +25°C, V
PHASE 10V/DIV
EN 5V/DIV
I
L
0.5A/DIV
PG 5V/DIV
IN
V
2V/DIV
= 12V, EN = VDD, L = 22µH,
OUT
SS 5V/DIV
PG 5V/DIV
PG 5V/DIV
March 17, 2009
FN6769.1