ISL9307IRTAANFZ-T datasheet(10/13 Pages) INTERSIL

Part #	ISL9307IRTAANFZ-T

Description	3MHz Dual 1500mA Step-Down Converters and Dual Low-Input LDOs

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Manufacturer	INTERSIL [Intersil Corporation]

Direct Link	http://www.intersil.com/cda/home

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10 / 13 page

ISL9307

10

FN7931.3

September 20, 2012

FIGURE 9. DCD1 TRANSIENT RESPONSE (VIN = 3.6V, STEP LOAD:

150mA TO 1500mA) CH1: VODCD1 (100mV/DIV, AC),

CH2: VODCD2 (50mV/DIV, AC, CH4: IL4 (500mA/DIV)

FIGURE 10. DCD2 TRANSIENT RESPONSE (VIN = 3.6V, STEP LOAD:

150mA TO 1500mA) CH1: VODCD1 (100mV/DIV, AC),

CH2: VODCD2 (50mV/DIV, AC, CH4: IL4 (500mA/DIV)

FIGURE 11. ENABLE WAVEFORM

CH1: ENDCD1/ENDCD2/ENLDO1/ENLDO2 (5V/DIV),

CH2: VODCD1: (2V/DIV), CH3: VODCD2 (2V/DIV),

CH4: VOLDO1 (1V/DIV)

FIGURE 12. 4-CHANNEL POWER-UP AFTER ENABLE

CH1: VOLDO1 (1V/DIV), CH2: VODCD1 (2V/DIV),

CH3: VODCD2 (2V/DIV), CH4: VOLDO2 (1V/DIV)

FIGURE 13. EFFICIENCY vs LOAD (VOUT = 1.8V, PFM/PWM)

FIGURE 14. EFFICIENCY vs LOAD (VOUT = 1.2V, FORCED PWM)

Typical Operating Conditions (Continued)

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OUTPUT CURRENT (mA)

VIN = 3.6V

VIN = 5.5V

VIN = 2.8V

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10

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1000

10000

VIN = 3.6V

VIN = 5.5V

VIN = 2.8V

OUTPUT CURRENT (mA)

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ISL9307IRTAANFZ-T Datasheet(PDF) 10 Page - Intersil Corporation

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