Product Summary

The LTC3707EGN is a high performance dual step-down switching regulator controller that drives N-channel synchronous power MOSFET stages. A constant frequency current mode architecture allows adjustment of the frequency up to 300kHz. Power loss and noise due to the ESR of the input capacitors are minimized by operating the two controller output stages out of phase.

Parametrics

Absolute maximum ratings: (1)Input Supply Voltage (VIN): 30V to – 0.3V; (2)Top Side Driver Voltages (BOOST1, BOOST2): 36V to –0.3V; (3)Switch Voltage (SW1, SW2): 30V to –5V; (4)INTVCC, EXTVCC, RUN/SS1, RUN/SS2, (BOOST1-SW1),; (5)(BOOST2-SW2), PGOOD: 7V to –0.3V; (6)SENSE1+, SENSE2+, SENSE1–, SENSE2– Voltages: (1.1)INTVCC to –0.3V; (7)FREQSET, STBYMD, FCB Voltage: INTVCC to –0.3V; (8)ITH1, ITH2, VOSENSE1, VOSENSE2 Voltages: 2.7V to –0.3V; (9)Peak Output Current <10μs (TG1, TG2, BG1, BG2): 3A; (10)INTVCC Peak Output Current: 40mA; (11)Operating Temperature Range: –40℃ to 85℃; (12)Junction Temperature: 125℃; (13)Storage Temperature Range: –65℃ to 150℃; (14)Lead Temperature (Soldering, 10 sec): 300℃.

Features

Features: (1)180° Phased Dual Controllers Reduce Required Input Capacitance and Power Supply Induced Noise; (2)OPTI-LOOPR Compensation Minimizes COUT; (3)±1.5% Output Voltage Accuracy over Temperature; (4)Dual N-Channel MOSFET Synchronous Drive; (5)Power Good Output Voltage Monitor; (6)DC Programmed Fixed Frequency 150kHz to 300kHz; (7)Wide VIN Range: 4.5V to 28V Operation; (8)Very Low Dropout Operation: 99% Duty Cycle; (9)Adjustable Soft-Start Current Ramping; (10)Foldback Output Current Limiting; (11)Latched Short-Circuit Shutdown with Defeat Option; (12)Output Overvoltage Protection; (13)Remote Output Voltage Sense; (14)Low Shutdown IQ: 20μA; (15)5V and 3.3V Standby Regulators; (16)Selectable Constant Frequency, Burst ModeR Operation or PWM Operation; (17)Small 28-Lead Narrow SSOP Package.

Diagrams

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
LTC3707EGN
LTC3707EGN


IC REG CTRLR BUCK PWM CM 28-SSOP

Data Sheet

0-1372: $2.78
LTC3707EGN#PBF
LTC3707EGN#PBF


IC REG CTRLR BUCK PWM CM 28-SSOP

Data Sheet

0-1: $5.50
1-25: $3.65
25-100: $2.78
LTC3707EGN#TR
LTC3707EGN#TR


IC REG CTRLR BUCK PWM CM 28-SSOP

Data Sheet

0-2500: $2.81
LTC3707EGN#TRPBF
LTC3707EGN#TRPBF


IC REG CTRLR BUCK PWM CM 28-SSOP

Data Sheet

0-2500: $2.81
LTC3707EGN-SYNC#PBF
LTC3707EGN-SYNC#PBF


IC REG CTRLR BUCK PWM CM 28-SSOP

Data Sheet

0-294: $3.35
LTC3707EGN-SYNC
LTC3707EGN-SYNC


IC REG CTRLR BUCK PWM CM 28-SSOP

Data Sheet

0-1323: $3.35
LTC3707EGN-SYNC#TR
LTC3707EGN-SYNC#TR


IC REG CTRLR BUCK PWM CM 28-SSOP

Data Sheet

0-2500: $3.38
LTC3707EGN-SYNC#TRPBF
LTC3707EGN-SYNC#TRPBF


IC REG CTRLR BUCK PWM CM 28-SSOP

Data Sheet

Negotiable