ZHCSMS1 数据表 | 德州仪器 TI.com.cn

ZHCSMS1B July 2020 – November 2020 TPS54JB20

PRODUCTION DATA

6.6 Typical Characteristics

Figure 6-1 Efficiency vs Output Current, VCC = Int

Vin = 12 V	Vout = 1 V	Int Vcc
300 nH	800 Khz

Figure 6-3 Safe Operating Area, V_OUT = 1.0 V

Vin = 12 V	Vout = 1 V	Ext Vcc 3.3 V
300 nH	800 Khz

Figure 6-5 Safe Operating Area, V_OUT = 1 V

Figure 6-7 Output Voltage vs Output Current

V_IN = 12 V

I_VCC = 2 mA

Figure 6-9 VCC LDO vs Junction Temperature

V_IN = 12 V

Figure 6-11 I_SS(source) vs Junction Temperature

Figure 6-13 FCCM Mode Load Transient

Figure 6-15 Enable Power-Down, Full Load

Figure 6-17 Vout Ripple, FCCM, Full Load

Figure 6-19 Vout Ripple, Skip-mode, 10mA Load

Figure 6-21 Overcurrent Protection

Figure 6-2 Efficiency vs Output Current, VCC = Int Skip-Mode

Vin = 12 V	Vout = 5 V	Int Vcc
800 nH	600 Khz

Figure 6-4 Safe Operating Area, V_OUT = 5 V

Vin = 12 V	Vout = 5 V	Ext Vcc 3.3 V
800 nH	600 Khz

Figure 6-6 Safe Operating Area, V_OUT = 5 V

V_IN = 12 V

V_EN = 0 V

Internal VCC LDO

Figure 6-8 I_SD(VIN) vs Junction Temperature

V_IN = 12 V

Figure 6-10 V_INTREF vs Junction Temperature

Figure 6-12 FCCM Mode Load Transient

Figure 6-14 Enable Start-Up, Full Load

Figure 6-16 Enable Power-Up, Pre-Bias

Figure 6-18 Vout Ripple, FCCM, No Load

Figure 6-20 Frequency Response, 20 A Load

Figure 6-22 Enable into Overcurrent