Datasheet RH1959 MILDICE (Analog Devices)
| Manufacturer | Analog Devices |
| Description | Radiation Hardened 4.5A, 500kHz Step-Down Switching Regulator |
| Pages / Page | 2 / 1 — PAD FUNCTION. DIE CROSS REFERENCE. Please refer to LTC standard product … |
| File Format / Size | PDF / 98 Kb |
| Document Language | English |
PAD FUNCTION. DIE CROSS REFERENCE. Please refer to LTC standard product data sheet for. other applicable product information
Model Line for this Datasheet
Text Version of Document
DICE/DWF SPECIFICATION RH1959MILDICE 4.5A, 500KHz Step-Down Switching Regulator
PAD FUNCTION DIE CROSS REFERENCE
1. GND LTC Finished Order
1
2. VC Part Number Part Number 3. SHDN
2
4. FB RH1959MK RH1959MILDICE 5. SYNC RH1959MK RH1959MILDWF*
3 4
6. BOOST
Please refer to LTC standard product data sheet for
7. VIN
other applicable product information. 5
8. SW
*DWF = DICE in wafer form. 6 7
80mils × 138mils, Backside metal: Alloyed gold layer
8 8
Backside potential: GND
7 7 8 8
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
7
Technology Corporation. All other trademarks are the property of their respective owners.
DESCRIPTION
The RH1959 is a 500kHz monolithic buck mode switching bipolar process and new design techniques achieve high regulator with an on-die 4.5A switch. It can accept inputs efficiency at high switching frequency. High efficiency is up to 16VIN to generate outputs as low as 1.21VOUT. All maintained over a wide output current range by keeping necessary circuitry including oscil ator, control logic, quiescent supply current to 4mA and by utilizing a boost comparators, error amplifiers, and reference are included capacitor to saturate the NPN power switch. Full cycle- on die, keeping solution size minimal and saving external by-cycle short-circuit protection and thermal shutdown components. High switching frequency allows a consid- are provided for safe operation in overload conditions. erable reduction in the size of external capacitors and A shutdown signal reduces supply current to 20µA while inductor. The topology is current mode for fast transient synchronization allows an external logic level signal to vary response and good loop stability. A special high speed adjust switching frequency between 580kHz and 1MHz.
ABSOLUTE MAXIMUM RATINGS (Note 1)
Input Voltage ...16V FB Pin Voltage ..3.5V Boost Voltage ..30V FB Pin Current ..1mA Boost Pin Above Input Voltage ..15V SYNC Pin Voltage ..7V SHDN Pin Voltage ...7V Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. 1
PAD FUNCTION DIE CROSS REFERENCE
1. GND LTC Finished Order
1
2. VC Part Number Part Number 3. SHDN
2
4. FB RH1959MK RH1959MILDICE 5. SYNC RH1959MK RH1959MILDWF*
3 4
6. BOOST
Please refer to LTC standard product data sheet for
7. VIN
other applicable product information. 5
8. SW
*DWF = DICE in wafer form. 6 7
80mils × 138mils, Backside metal: Alloyed gold layer
8 8
Backside potential: GND
7 7 8 8
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
7
Technology Corporation. All other trademarks are the property of their respective owners.
DESCRIPTION
The RH1959 is a 500kHz monolithic buck mode switching bipolar process and new design techniques achieve high regulator with an on-die 4.5A switch. It can accept inputs efficiency at high switching frequency. High efficiency is up to 16VIN to generate outputs as low as 1.21VOUT. All maintained over a wide output current range by keeping necessary circuitry including oscil ator, control logic, quiescent supply current to 4mA and by utilizing a boost comparators, error amplifiers, and reference are included capacitor to saturate the NPN power switch. Full cycle- on die, keeping solution size minimal and saving external by-cycle short-circuit protection and thermal shutdown components. High switching frequency allows a consid- are provided for safe operation in overload conditions. erable reduction in the size of external capacitors and A shutdown signal reduces supply current to 20µA while inductor. The topology is current mode for fast transient synchronization allows an external logic level signal to vary response and good loop stability. A special high speed adjust switching frequency between 580kHz and 1MHz.
ABSOLUTE MAXIMUM RATINGS (Note 1)
Input Voltage ...16V FB Pin Voltage ..3.5V Boost Voltage ..30V FB Pin Current ..1mA Boost Pin Above Input Voltage ..15V SYNC Pin Voltage ..7V SHDN Pin Voltage ...7V Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. 1
